Best heads for 400 sbc It has a Pete Jackson gear drive, Blue May 8, 2009 · most guys know by now that the sbc 400 block was cast without coolant passage clearance between the cylinders, unlike those other 265-350 sbc blocks (siamesed castings) what many guys don,t know is that installing sbc heads on a 400 block without drilling additional steam holes in the heads that Jun 25, 2014 · Looking for a Cam recommendation for a SBC 23 deg head with a plate system (around 300hp of nitrous). This is very good instinct, and you could even argue that the grammar is good, but at best it's unnatural. Vortec Heads for sale at JEGS! May 22, 2022 · The head gasket with aluminum head’s is best used when a composite to allow for the slower and lesser amount of heat caused expansion and contraction of the iron block compared to the aluminum head’s. 190 in. I built it for $500. They will require a Vortec specific intake, but they are 1 of the best heads for small bore motors without going to the aftermarket. Jun 13, 2001 · I need some help concerning head gaskets for a small block 400 with aluminum heads. The holes have to be extremely accurately places. 125" bore with 6. The non ported 906's ran mid-11's on my flat top piston 406 and low 12's on a dished piston 400 this year. Casting #416 & #601. 426mm Gasket Material: Steel core laminate Compressed Thickness (in): 0. 5 or so which is good The Vortec normally runs about 62-63cc's so you are going from 76 to 62 plus there are very few heads that can hold a candle to the Vortec for low lift flow numbers. Jan 28, 2021 · 1-1/2 years ago I posted the following to a discussion of 400 engines and steam holes. Aug 1, 2012 · Alright guys what in your opinion is the best SBC head in the market straight out of the box. The question of iron versus aluminum is really more of a question of cost rather than performance. 3 "It's best (if) he (not) buy it tomorrow. Sep 3, 2022 · So this is kind of a revisited thread from a post I created a little while ago about 400 compression. The you run the chance of the deck cracking out when you torque the heads (happened to me with 2 blocks). 27 -164. Apr 21, 2005 · Hey there. Nov 1, 2015 · The short block consist of good stock 400 crankshaft, 5. So steamholes must be drilled in non-400 heads. 84/1. Anybody want to throw out a combo? Factor crank? 5. so now comparing the 3. It is best not to do something. Could someone help explain? Aug 22, 2020 · I mean here "You are the best at tennis" "and "you are best at tennis", "choose the book you like the best or best" both of them can have different meanings but "most" and another adverb in a standalone sentence has a completely different meaning. 555 BBC profiler 174x heads. One of my colleagues (not a native English speaker) always ends his emails like this: Bests Mike I guess he means Best regards with Bests. 94 / 1. Plastic, wood, or metal container? What was the best choice for this purpose? Plastic, wood, or metal container? What was best to choose for this purpose? Either is acceptable, and the practical meaning is the same, but their referents, implicit not explicit, are different. Basically stock short block otherwise with HV oil pump Order high-performance cylinder heads online today. Can use on aluminum block with liners. 3:1 CR , and steel connecting rods. Check the archives for the whole thread. Static compression was 8. I sure hope they are small runner 180cc frankly Dec 1, 2010 · The 400 has a bigger bore potential than a 350 and the bigger the bore the better heads you can put on it. 56 gear, th400. 60 exhaust valves and 1. 5 give or take so you are going to end up at about 9. Oct 20, 2016 · Both sentences could mean the same thing, however I like you best. Recommendations? If you are looking to find the best aluminum heads for small block Chevy, it is easy to break the bank searching for the perfect one. its got 4 valve relief flat tops, comp 270 cam . 125" compression height +16cc inverted dome Aug 1, 2008 · Comp Cams offers hundreds of potential cams for specific engine families. 1 Your example already shows how to use "best" as an adverb. May 2, 2013 · I pulled off the heads for the 350 and the casting number is 3951598. M. 357! Dec 9, 2024 · watch the videos, as they contain several tips you can use keep in mind that the 400 SBC , in O. This is capable of up to 265 horsepower when kept in stock condition. 050 May 1, 2011 · We build a 400ci Small Block Chevy for $2500. If you wanted to stick with a conventional SBC head, the AFR 195 is a nice match for the 400+ inch street motor. About 4 or 5 CFM. 2a has a quite different meaning, implying that what is being approved of is not that the purchase be made, but that he is the one to make it. 020" over block, nice crank, stock pistons/rods and a shiny set of alloy heads that has the PN # DRT 065a and " 180 " cast on the head surface. That’s because they are the closest thing you can get to 18° cylinder head performance in a 23° design. x CR as possible without risking leaks. Most of these small-block Chevy heads offer a power increase of around 40 hp, and even the iron Vortec heads were worth 20 hp over stock. I have the following intakes in possesion and can't decide what to start with: Performer RPM Performer RPM Air Gap (still in box) Victor Jr Here is the combo: 400 SBC . 750, with a 7/16 6 inch rod and a Mahle piston, we ended up with 10. 64 cc Aluminum heads, looking to get as high into the 9. Check out results from the tests they executed on the 5 most popular small-block chevy cams. 7" connecting rods, the larger bore allows the larger displacement for Apr 25, 2025 · Selecting the right cast iron cylinder heads for your small block Chevy (SBC) can drastically improve your engine's performance and efficiency. if you can find a complete 400 (good luck!), tear it down get what ever machine work needs to be done to the rods, crank, and block done. 60 Lunati 60133 Solid Roller with 1. If the copper ring or flattened ring gasket would seal as well (no power adders; 11-1) I'd rather use it if it didn't indent the heads. N/A, no power adders no steam holes in the heads I am thinking a Fel pro 1003 should be AFR's 200cc SB Chevy Enforcer Cylinder heads feature our permanent mold “As-Cast” technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. The heads come standard with Trick Flow’s advanced CNC Competition Ported runner design that features fully Trick Flow’s Super 23 230 cylinder heads represent the best value in small block Chevy racing technology. This guide reviews the best cylinder heads designed specifically for the 350 SBC, highlighting their key features, construction quality, and compatibility. Here the rest of the combo: 400sbc - 4. 08/1. Fits: AFR SBC Oct 15, 2019 · Anyone want to share a good street combo in a 400 to 406 sbc? Prefer to shift at 5800 to 6000. Upgrading the cylinder heads is a key modification to enhance power, airflow, and overall engine efficiency. 50 valves. ride N/A. It's a 1971 265HP version out of a 1971 Impala. If someone is talanted and knows what they are doing they can do their own steam holes, but I don't In this video I look a some budget friendly options when choosing cylinder heads for your SBC. This is a quick walk through the history and evolution of some of the better production heads, but […] Sep 17, 2013 · 400 sbc - stock bottom end ~ 22 cc pistons ~. carcraft. The engine is a 4. But if you will only use your car for cruising, you can't beat the price and performance of Vortec heads. 5 dished stock pistons. Dec 22, 2004 · I thought about trying those heads on a "production" 2 bolt 400 small block for my truck, Skip's published flow numbers if correct are slightly lower than the 462 fuelies on my 327, but I'm sure they can be worked over for better numbers. Jun 12, 2014 · Technical best cam for a 400 SBC Discussion in ' The Hokey Ass Message Board ' started by Jimv, Jun 12, 2014. Honestly for me, any type of hotrod/weekend car I would go with a solid roller cam for a sbc Dec 16, 2013 · 68 camaro, all steel/full interior/factory trim etc. 1969 Camaro, turbo 400 tranny, 28-3200 stall, dual plane Holley Street dominater intake, holley 750 hp carb. Trick Flow® DHC™ 175 Cylinder Heads for Small Block Chevrolet TFS-30210003 owns1955 Chevy 150 1955 Chevy best 60' 1. Nov 8, 2005 · im wondering what i kind of gains and compression i could get out of running a set of 350 vortec heads on my sbc400. 02"/1. Their long history makes buying the factory heads very costly. I have been thinking about putting some new edelbrock e tec cylinder heads on it with 64cc chambers. E. Features like fast-burn combustion chambers, high-velocity ports, large diameter valve springs, and rugged construction Feb 6, 2008 · I have an iron Motown 400 SBC with AFR heads. Performer or GM ZZ4? Plan on using a Qjet so like the dual flange. I had a very nice thick 817 production block, bore and stroke 4. But personally I prefer the Trick Flow 195cc heads, the size is right for a mild to moderate 383 and they are very easy to install with OEM style parts. 50-inch valves, a 67cc chamber, and a 175cc intake port. Torquey combo. 5:1 cr on 64cc heads Pro 1 Platinum 215cc heads ported by Mike Stark @ CFM Free Shipping - Summit Racing™ Cast Iron Cylinder Heads for Small Chevy with qualifying orders of $109. 8-10 MPG. For discussion purposes we can use 3400-3500 lbs for operational weight. 125" bore, 1. I have new Edelbrock aluminum heads. - Hot Rod Magazine Jan 25, 2023 · Hello, If I wanted to put some heads that were on a 400 small block on a 350 block would this be ok? The heads have steam holes, the 350 does not Mar 20, 2009 · C3 Tech/Performance - who makes the Best SBC Gasketts - who on earth makes the top 3 SBC head gaskets who makes the best gasket and seal sets? Ryan Feb 1, 2021 · The fact a 400 is grafted into a Camaro is not by itself a problem for spark plugs, the big pain here is getting header clearance if they are used with factory insulator length plugs. 3:1 compression with . The cam is a Crane 113941, 216/228, 272/248, 112 lsa. So I was wondering what compression ratio The experts at Speedway Motors have carefully curated a selection of the best Cylinder Heads for World 400 Chevy - delivered quickly, efficiently and without any hassles. This engine performed very well for what it is. My current engine build is as follows 360 sbc 1 piece rear main block (. com User Name Aug 17, 2025 · Explore the best SBC cast iron heads for Chevrolet engines in 2025. 5:1 compression. " It was the best ever " means either it was the best up to that point in time, and a better one may have happened since then, or it includes up to the present. Now I'm wondering, if this cam would work well with a pair of Vortec heads for my Mar 31, 2014 · I remember a Chevy 79 K30 back in the 80's that got a set of 350 heads bolted on a 400 block, without drilling steam holes. Hope to build a 475 to 500 HP cruiser engine. Below is Find CHEVROLET 6. inches. 7" connecting rods, the larger bore allows the larger displacement for WHAT CAM SHOULD I RUN IN MY 400-INCH CHEVY? DO I NEEDED PORTED HEADS ON MY SMALL BLOCK 400? WHAT IS THE BEST CARB FOR MY SMALL BLOCK? HOW WELL DOES THE DART INTAKE WORK ON A SMALL BLOCK? Dec 9, 2021 · C3 Tech/Performance - Thinnest head gasket to safely use on undecked sbc 400 block? - Stock short block, 22. 00" rods 12. " is not a subjunctive form, and some options do not work well. 020" shim for starters here! But I would retorque everything at least twice after hot and cold cycling. 48 LR, low compression (calculated 8. ********** Mimilan tells us: "400's don't overheat in dirt car racing!" I learned that the dirt track guys are a good source of 400 info. I have a 400 sbc with 125 compression per cylinder. As for your 350 heads, they will fit, but you have to have a machine shop to drill the steam holes in the heads to match the 400 block. 5800 converter, 4. Aug 7, 2017 · Hey guys, I've got a pretty solid engine at the moment but really looking to make the next hurdle of 400hp. Just a shade better then the 461X. Thanks! Jan 8, 2004 · Read the tech article on which the very best headers out here, brought to you by the experts at Chevy High Performance Magazine If you are going to race a 400 small-block full-time, there is no need to drill the matching steam holes in the heads. Do the Fel-Pro 1003 gaskets come in a 4. 470 lift, 224 duration, full length headers, running a performer intake which id still run for the vortec style heads, customized The Small Block Chevy 400 has an engine displacement of 400 cu. 60" exh, port matched to intake, screw in Jun 12, 2020 · 400 SBC build by tcb3274 » Fri Jun 12, 2020 1:25 am Got a 4 bolt 400 sbc to check out at the machine shop. Chevrolet produced their first small-block engine back in the 1950’s and kept them until the later parts of 2003. How did we do it, read the full article for details and some great tips. buy a set of 18cc dished pistons, a mildly price set of 200cc runner/ 72cc combustion chamber steel heads (should put you Shop Small Block Chevy PartsFel-Pro: 1004 Bore (in): 4. Your Vortec heads will bolt up and work just fine as far as fitment. Mar 20, 2010 · The cylinder heads on the Small Block Chevy 400 were prone to crack and the cores for this engine are increasingly more difficult to find. They are 76cc chambers. 030 over and had felpro gaskets in it the cheaper rebuilder ones PT and some other #'s it lasted about 1 hour and then put the pedal to the floor and smoked out the car coolant went into the engine. Much to my surprise they are Chevy 400 sbc heads around 76cc with 1. But, what is the grammatical function of "at best" (for example, in the below sentences?) Their response to the proposal was, at best, cool. 00 bore size?? Thanks for the input. 94" int/1. The 305 heads I have are 14014416 with 58cc chambers, 1. 75" crank Eagle 4340 Forged H beam 6. 30, factory 509 block with brodix alum. I have a sbc 400 . Dec 8, 2020 · It's best that he bought it yesterday. I like chocolate best, better than anything else can be used when what one is choosing from is not specified I like you the best. 6/1. The V8 engine series lasted an amazing 50 years or so due to its simple and highly Small Block Chevrolet Compatible Heads From innovative design to precision manufacturing… BRODIX is serious about quality and workmanship at every step of the process. Jun 22, 2025 · The 350 Small Block Chevy (SBC) engine remains a popular choice among car enthusiasts seeking durability and performance. Which is why I was mentioning heads when you already said you have a set of Vortec heads. Jun 24, 2018 · Guys, I need some head gaskets for my 400 skinny block. These heads deliver enhanced performance and durability, guaranteeing smooth engine operation. We manufacture and sell more aftermarket aluminum cylinder heads than anyone else in the business. There are many different types of gaskets Trick Flow’s Super 23 230 cylinder heads represent the best value in small block Chevy racing technology. All done around 6000. (including fuel and driver) -317 casting 400 bored . A pair of these heads are perhaps among the most affordable heads that can push a small-block well into the 400 hp zone. Looking to have peak power around 6800-7000rpm. While at the swap meet I claimed a 267- HDP Crower camshaft part number 00240. The use of a 1004 fel-pro left a minor indentation in the head after removal. Apr 25, 2025 · In designing a 400 hp Small Block Chevy, we focus on key internal components and design features that together create a high-performance engine. Chevy 400 Cylinder Heads in-stock with same-day shipping. May 25, 2022 · "Which one is the best" is obviously a question format, so it makes sense that " which one the best is " should be the correct form. Install a valve, place the cylinder head with the intake port in this orientation and fill the port from a graduated burette. 52 The best way to determine port volume is to measure them. Jan 14, 2020 · Re: Sbc 400 vs 415 vs 427? by Mikej26 » Wed Jan 15, 2020 12:31 am Ok, I’m seeing that the 4” stroke might be less ideal with cam clearance as well as needing to add clearance in the block etc. Jun 14, 2007 · The 400 responds very very well to the Vortec / E-tech heads. It has a Scat crank, compcam xe274 cam,9 to 1 comp. Aug 4, 2016 · 400 ci small-blocks utilize siamese's cylinder walls create air pockets in the cooling jackets when a 350 head is used, this mod corrects this problem. My camshaft recommendation was based on the 1. These modern double hump heads look real good on paper. I think the trick flow heads are often over looked by Chevy guys. I like the idea of the wire ring gaskets, but wonder if it's necessary. The Super 23 230 heads work best on 400 cubic inch and larger engines. 400 blocks have siamesed bores. 75” stroke. Thanks Feb 2, 2023 · watch the videos, as they contain several tips you can use keep in mind that the 400 SBC , in O. 155 bore, and May 28, 2016 · For an iron OEM head, the best option is the L30/305 heads. I have heard that a set of iron vortec heads will be a really good addition to this particular engine. 550", gasket matched, smoothed combustion chamber ~ 9. 21-131 and 8. Jul 8, 2021 · Vehicle Compatibility - Cylinder Head Compatible with SBC engines 302/327/350/383/400 small block chevy engines up to 1986. Shop our entire collection of professional-grade cylinder heads today at JEGS High Performance! America's favorite high performance cast iron small-block cylinder heads offer big power and bigger value. How many miles do you plan to drive it a year. Dart Chevy 400 Cylinder Heads in-stock with same-day shipping. This budget friendly head is perfect for your 350 to 400 cubic inch operating below 6000 RPM. 82. Aug 2, 2021 · Hey folks! Next project requires an SBC. 22cc dish. Mar 6, 2004 · I'd build a 383. It made the 402 I took out seem like a dog I have another exact copy Oct 25, 2014 · As far as port matching which is the best choice for these heads on a sbc? also what would be the best choice performance wise? 4150 carb 383 11-1 comp double pump carb HR cam max power @ ~6800 thx for any imput. It has the original heads on it that I've heard are crappy for performance. Does any one know a good head gasket for my engine. It's a pricey swap with the intake, rocker covers, rockers and all, but it makes for a very nice street friendly package. Here's my input on a MILD street 383 with an honest 400+ HP: TFS 23* heads 64cc chambers. High-performance efforts have always begun by improving upon what the factory built, and the smallblock Chevy is the poster child for that effort. 050 ish thick head gasket for 400 sbc?? by pdq67 » Wed Oct 20, 2010 1:17 am I would have no problem with stacking them all painted up with Indianhead to get a . Apr 23, 2013 · "Best" head if money isn't an issue is the 195 cc AFR fully CNC'd head for a street driven car. Feb 2, 2023 · watch the videos, as they contain several tips you can use keep in mind that the 400 SBC , in O. 7 or 6 inch rods? Aug 16, 2024 · I would go with these Trick Flow heads, and have Chris Straub grind a cam to match the heads. Jan 7, 2015 · Dictionaries state that "at best" is an idiom. Jan 2, 2016 · The word "best" is an adjective, and adjectives do not take articles by themselves. just my cents Jul 28, 2014 · Suggestions for 400 SBC Heads Engine & Drivetrain> > Suggestions for 400 SBC Heads Web 67-72chevytrucks. Item #: WPM-S-274-SH WHITE PERFORMANCE AND MACHINE SMALL BLOCK CHEVROLET ALUMINUM HEADS 64cc Chamber, 200cc runner FULLY ASSEMBLED - STRAIGHT PLUG *WITH STEAM HOLES FOR THE OEM 400 BLOCK* FOR MECHANICAL FLAT TAPPETT OR HYDRAULIC ROLLER CAM These heads feature - Hardened Seats - Bronze Valve Guides - High Grade Aluminum - Multi-Angle Seat Design - Available Complete or Bare - Available fully Dec 22, 2014 · A +0. It is also a superlative, like "greatest", or "highest", so just as you would use it as an adjective to show that something is the ultimate example of it's kind when used as an adverb you do so to indicate that the adjective it precedes is to the highest degree possible. It is . Jun 9, 2023 · Folks, looking to pick up an intake for a 400 SBC, destined to be a mid range grunt motor. What's your opinion? Thanks! Jun 27, 2006 · Best head gasket for a 400 chevy 030 over? by drifter » Mon Jun 26, 2006 10:10 pm I have a 11-1 comp 400 chevy . Sep 30, 2001 · The 400 small block is the next best thing to a big block. 200cc Notes: This gasket does not have steam holes for 400 street engines, designed only for race use in those applications. Jan 27, 2014 · Are these heads any good 3832441 i wanna no if thoese heads are good or should i go with some vortecs from pick and pull i have a 355 sbc hooker headers holly 650 carb holley fuel pump 350 turbo trans with 3. 73 posi trying to make least 400hp Oct 19, 2010 · Re: . 75” to the 3. Pre-flattened steel wire ring. Jan 30, 2013 · just lookin for info 355 sbc engine combos that put out 400-425hp any info would be great May 3, 2023 · Instead, for our Best Small-Block Chevy Heads story, we have dyno curves, average power comparisons, and even dollar-per-average-horsepower evaluations. 040 over and I am running aluminum heads with steam holes. Either the 180 or 200 cc Pro Toplines should do it. 400-inch bore spacing, and it is sure to be a big winner in Comp Eliminator, Outlaw Jan 26, 2007 · Stock 400 has dished pistons with about 8-0-8. and larger crank bearing diam, and in factory form it uses shorter than the common 5. If you're looking for a budget-conscious, yet proven, cylinder head for bolt-on performance gains, check out these completely assembled cylinder heads from FloTek. 040" composite and a . 0-9. are used, simply because swapping from a 78cc to about a 61cc -64cc vortec head will more than Every step of the small-block Chevy’s performance history has originated out of production parts. 72:1) and the small intake ports. 5 compression ratio computed with a . Stock 400 short block with Vortec heads, headers, Performer RPM with a Quadrajet. with 9:1 flat top pistons. Whether you're in search of 400 SBC heads for sale or looking to upgrade your existing small block Chevy 400 heads, our cylinder heads are your go-to Feb 2, 2005 · I've finally got the results for the 400 SBC that I have been asking all kinds of questions about lately, from differences in valvespring pressure, to crankshaft and block reliability, manifold porting etc. I drove the vehicle 2-1/2 hours home, some of it on the interstate at 65 MPH and the engine ran great! However, I got Jun 9, 2013 · He's good with the stock 400 SBC short block and the Edelbrock Performer RPM cylinder heads. I have thinned the valve guide down, smoothened the bowls and opened them up to 1205 gasket. com, the official website for Car Craft Magazine. The 1003 has steel ring and 1010 has copper ring. 060 over, stock style replacement dish pistons. or It's good that he bought it yesterday. You can get an entire pull out for under $1000 and with just a cam swap you're at 400 flywheel HP. 34 best ET 6. The Mar 26, 2020 · A forum member had me build a mild 406 for his 71 Chevelle, I thought I would post some pictures. 040 over Mahle Flat tops 6" Eagle Rods and Eagle Crank AFR 210 Race heads 2. 020 or more down the hole vortec heads - modified for lift up to . Compressed Volume (cc): 9. form, has a larger , block bore diam. An honest 12. Jul 11, 2012 · I am at the point where i need to decide on a head gasket for my bracket motor. 040 and it has a blown head gasket. 125" bore Scat Forged 4340 3. heads. The best iron head made by GM is the bowtie vortec. Last fall there was a thread titled: BEST HEADS FOR A SBC 400 There was interesting topic drift that gave a good variety of 400 Jan 3, 2013 · Stock heads will outflow the $2000 heads required on the 400 to make 400-500 HP. Felpro 1003 Fel-Pro Performance Head Gaskets 1003 or Felpro 1010 Fel-Pro Performance Head Gaskets 1010 . Here, we have the adjective best, but this adjective is attached to no noun. The Vortech heads are nice, as are some mild World Products, etc. 41 head gasket. $1500 LSX vs. Small-block heads measure between 160 and 240cc. Coolant flow at engine speeds above 3,500 rpm is sufficient to keep things cooled down. 030 over. Between chocolate, vanilla, and strawberry, I like vanilla the best can be used when choosing from some choices. Mar 25, 2014 · The best head from GM that was installed on a small block is the vortec. After those, the 305 HO heads would be my next choice. Will the felpro 1003 be alot stronger? Dec 3, 2008 · Long story short, I scored a recently rebuilt small block 400. unless other mods like a different cam and forged pistons and better rods etc. The heads come standard with Trick Flow’s advanced CNC Competition Ported runner design that features fully Jan 15, 2011 · in many cases using vortec heads on a 400 plus displacement sbc short block is basically a bad idea if your goal is impressive hp levels, rather than low and mid rpm torque. Say a . I have them on my little M 400 sbc, but I have a procharger so it is hard to compare. Bore (mm): 106. Heads will be slightly modified Sportsman II with 2. 060" over) Edelbrock RPM intake Holley 650 DP 882 heads 1. Apr 25, 2007 · list your 400 or 406 sbc combo's here,,, what works the best for you Jump to Latest 130K views 16 replies 16 participants last post by makennoise Aug 13, 2010 T Jul 17, 2012 · if all you are looking for is a 400hp sbc 400 then dont bother with forged internals. 22 Find CHEVROLET 6-6L-400 CHEVY-SMALL-BLOCK-GEN-I Headers In Stock Filter Options, Vendor In Stock Filter Options and get Free Shipping on Orders Over $109 at Summit Racing! Jan 8, 2004 · 400HP should be pretty easy with a 383. Oct 21, 2009 · The heads are the ProComp units, but I can't find any information on what they recommend. The original cast iron heads were prone to cracking, but, as with all Chevrolet small block parts, they are interchangable with other small block parts (just need steam holes drilled into them). I suspect a broken valve spring as the cause. 050" thickness. 030" 400 with zero deck, Fel-Pro 1003 head gasket, -12cc pistons, 70cc Pro-Filer 210 heads, Weiand 8150 intake manifold, 850 carb, 14" x 4" air filter assembly, 1 3/4" long-tube headers and a custom-ground roller hydraulic cam makes 534 hp @6000 and 521 ft/lbs @5000 on my Dyno-Sim. It works best in big-inch or high-rpm applications running the standard 4. . Maybe a month later it was back in the shop with cracked block if i remember right. (waiting to hear from machine shop) This is a weekend car and occasionally goes to the track a couple Oct 7, 2014 · My car is 3350lbs and I run a stock block 400ci sbc with cast iron GM performance Vortech heads, flat tappet cam (baby) on Alky. Only at www. Heads are important. Jun 24, 2012 · Hello all. With the help of craigslist I've acquired a 2-bolt 400 small block Chevy that I wish to acquire 450 hp out of with 92-93 octane. Because the noun car is modified by the superlative adjective best, and because this makes the noun car definite in this context, we use the. 400" if spending good money on heads?Anything under 4. Reviews, pros & cons, installation tips, and buying guide for optimal engine performance. Jun 4, 2014 · Hi guys,so I have a freshly rebuilt by my mechanic buddy 817 sbc 400 block bored . 155 X 3. Jul 13, 2021 · I ran factory 062 mild ported Vortec's with a smallish hyd cam last year and it was a 10 sec. It is actually a big block bore and stroke in a smal block package. 8:1. What say you? thanks in advance for your response. Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads Nov 21, 2022 · Heads are fine and will make plenty of power on a 427 and with the right cam power peak will still be above 6000RPM. 94 intakes. We proudly carry powerful small block, big block and aluminum cylinder heads that will raise horsepower and help optimize your engine's performance. Sep 6, 2021 · The best way to improve power on your small block Chevy would be to not attempt to save those existing heads. Oct 12, 2024 · The 400 in my truck burned an exhaust valve. no pwr adder Save Reply Quote Like Show more replies 0 Reply 1963 corvette 2,770 posts · Joined 2016 #10 ·Jan 15, 2022 Why would you go 4. May 20, 2008 · I just bought a complete (carb to oil pan) 400 sbc casting #3951511 complete engine from Craigslist for $500. With the project came a virgin 400, cleaned up @ . Vortec heads may be a little small for a 400 if you plan to really rev the engine--might run out of steam at about 4500rpm. the 400 has too many potential cooling problems, and good 4 bolt blocks are difficult to come by and pricey when you do. May 29, 2023 · So, " It is the best ever " means it's the best of all time, up to the present. compression, etc. 42 10 bolt posi (Buick), - All your base are belong to us. 1971 Malibu, factory buckets/full gauges/console, 383 roller cammed small block, Turbo 400, 3. Most of the gaskets I have looked up say they are only good for up to 4. The head is new and the block has been zero decked. Dec 7, 2002 · What's the best way to achieve a moderate compression ratio around 10:25:1 on a 400 SBC? Is it better to use flat top pistons and a larger combustion DESCRIPTION: After an intensive research and development process, MBE has developed the most highly engineered small block Chevy cylinder head in existence! MBE's new design is produced exclusively in billet for ultimate performance. 155” bore, 17cc dish SRP piston, 62cc combustion chamber, 10. The dizzy is a MSD Streetfire hei,It has headers a th350 tranny with shiftkit,2500 stall and posi rear with 308 gears on 29" tires Jan 14, 2022 · 72 Chevelle. Mar 8, 2020 · I bought a 1978 GMC K25 with a 400 small block, when I bought the truck the previous owner told me he had to replace the head gasket on the driver side because it over heated. 30 in a 68 Firebird. 85” stroke, is the difference that significant? I’m sure I can get great power out of the 3. e85 single carb 3460 w driver. Machining the 350ci cylinder heads to match the 400ci heads is an excellent way to keep your 400ci engine alive. From precise bore and stroke dimensions to efficient cooling systems, each aspect contributes to the engine’s robust power output. Dec 15, 2022 · Pro-Flo 4 recommendations for 400 SBC combo 12-15-2022, 08:55 PM Wondering if the Pro-Flo 4 or XT will work well with this combo: World Products Motown I Block 400 SBC internally balanced 4. 3 compression. It;s a 400 + 0. I want the opinion made without considering cam. Assuming your 350 small block Chevy is using flat top pistons with valve reliefs, a cylinder head with a smaller 64cc chamber will immediately help by adding compression. 000" Rods SRP 4032 Forged Pistons 4. Oct 18, 2018 · In your context, the best relates to {something}, whereas best relates to a course of action. I am going to drop it into my 72. ,4 valve relief KB dished pistons,Profiler AllAmerican 195 runner heads with a Speed demon 650 on an RPM intake. 840 is a sbc May 28, 2010 · I am in the process of putting my 400 back together and would like some oppinions on intake manifolds. Not compatible with Vortec style intake manifolds High-Performance - Featuring a 200cc intake runner, this cylinder head enhances power while retaining stock compression for 1970 and earlier models Optimized Combustion - With a 68cc combustion chamber and square intake Jun 5, 2020 · Summit’s version of the Chevy Vortec head sports 1. 039 gasket HEI - MSD street fire Eddy air gap 780 cfm holly 3310-1 long tube headers 200-4R tranny (5500 rpm shift at WOT) torque converter - ? (yet to be May 2, 2015 · Alright, after a brief tryst with Carlisle I came away with small block Chevy parts I never knew I needed. 7" Scat 4340 I beam rods with 7/16" bolts and forged Wiseco flat top Pistons for 10. The best old head out of the box is the 492. (Image/Summit Racing) May 26, 2023 · Looking for the best budget SBC heads to enhance your engine's performance without breaking the bank? Discover top options, FAQs, and expert recommendations Mar 20, 2019 · As the title asks, whos head for an aluminum 23-degree non offset intake valve, 400 plus cubic inches sbc and 400 to 500 horse nitrous? Thanks for your opinion and any info. Sep 20, 2010 · I am trying to get a plan laid out for a build. Something with about 10 to 1 compression and aluminum heads. Been there done it! pdq67 Jul 21, 2020 · Trying to decide on what head gasket to install with Edelbrock aluminum cylinder heads. Best of 5. $5000 for a 400 SBC rebuild and 20+ vs. 041 in. Vortec Heads for sale at JEGS! America's favorite high performance cast iron small-block cylinder heads offer big power and bigger value. I thought I would post the dyno numbers to show what motor I produced with some of the Small Block Chevrolet Compatible Heads From innovative design to precision manufacturing… BRODIX is serious about quality and workmanship at every step of the process. 6L/400 Cylinder Heads In Stock Filter Options, Vendor In Stock Filter Options and get Free Shipping on Orders Over $109 at Summit Racing! Shop Chevy 400 Cylinder Heads and get Free Shipping on orders over $175 at Speedway Motors, the Racing and Rodding Specialists. The Jan 2, 2016 · The word "best" is an adjective, and adjectives do not take articles by themselves. I know I'm bumping up compression. Shop Cylinder Heads at Summit Racing. Block hopefully will be . Shop Dart Chevy 400 Cylinder Heads and get Free Shipping on orders over $175 at Speedway Motors, the Racing and Rodding Specialists. Double Hump, Vortec, Summit, Flotek, ProMaxx, AFR can all be a great option depending on your build Jan 14, 2014 · It was time for us to build out a 400 hp 357 SBC using all the parts we put through the CC wringer with multiple tests, creating our own Quick Draw . Our SBC heads are tailor-made for 71-82 Chevy models, ensuring a seamless match for your vehicle. But the 461X and the 292 would except more porting, and except larger springs where the 492 would get into the water jackets. 7" connecting rods, Nov 4, 2019 · eBay Motors wanted something cool to put in their booth at SEMA 2019, and they asked us to build a couple of engines, one being this Vortec 350. The cam is hyd roller, 234/238 @ . Any preferences amongst the SBC gurus out there> ? Leaning towards the GM ZZ4 as its a bit more modern design. I found some Fel Pro 1010 with pre crushed rings but it shows Breathe new life into your small block Chevy with a set of FloTek aluminum cylinder heads from Speedway Motors. Stay with intake port size of 180cc or less for great bottom end Dart's Small Block Chevy Heads lineup includes SHP, Race Series, Pro1, and Iron Eagle heads to maximize your high-performance street or dedicated race cars. Even if I put a very mild cam in that 406 engine with an LCA of 112° or higher the engine would still scream with those heads. If you buy the 400 small block head gaskets and lay them on the heads, you Dec 16, 2013 · Chris Henderson and his team built this 406 Chevy small-block for the 2012 AMSOIL Engine Masters Challenge. 6 valves.