600 hp 383 stroker build

For Reference Stock Chrysler Dodge Mopar Modern Hemi bore and stroke specs as follows: 345 cid 5.7 L Hemi = 3.917 x 3.580 , 370 cid 6.1 L = 4.055 x 3.580. We recommend K1 Technologies 5.7 6.1 Hemi Rods and K1 Stroker cranks for use with these piston kits. The rod and crank info is listed below this piston chart.

CNC Motorsports Chevy 383 stroker, Eagle Crankshaft, Eagle H Beam rods, SRP Pistons, AFR aluminum cylinder heads. We build custom street/strip race engines. ...The final product is a ridiculously simple 355 mill that utilizes a factory four-bolt block, a stock GM steel crank, Eagle I-beam rods, forged Speed-Pro pistons, World Products iron heads, and a ...Chevrolet offers the 383 Stroker as a crate engine, and it has a rating of 450 horsepower and 450 lb.-ft of torque. Ideally, Chevrolet notes, you should use a Holley 4-barrel carburetor to meet performance specs. Beyond brand suggestions, there isn't much guidance for selecting sizes. It's worth noting that your Stroker 383's displacement ...The stroker kit looks o.k.But you are going to kill most of your gains buy using the 882 heads.They start running out of steam at 5000 rpm.Especially on a 383.Save you some more cash and look for some vortec heads.If you can build the engine as you stated and get some decent heads 325 to 375 horse is fairly easy.The Scat crankshafts are the best way to build a strong bottom end for, street rods, dirt and circle track racing, and drag strip racing. ... Genuine Scat Bushed Rods with ARP 12 point cap screws are now used in all of our rotating assemblies and 383 Stroker engines. ... We use the very same Scat Competition rods in our 600+ hp 427 and 434 engines.Designs for building a 700ish HP 383 stroker. I'm looking into building a 383 stroker soon, I already have a 350 bored 30 over, might use that or else summit sells a 383 block for $729.99, I want this motor to snap and am looking for alot of torque as well.

The Eagle stroker kit (PN ESP-B15405E030) is an amazing value at only $875. For that stack of cash you get a new cast-steel 3.750-inch crank, Eagle forged SIR I-beam rods, Keith Black ...Starting at $9,999. This 408 Mopar Small Block Stroker Crate Engine is based on the 360 Chrysler engine. It features a forged steel stroker crank that provides big-block torque in a small-block package. H-Beam rods and forged pistons complete the stout bottom end. A hydraulic roller camshaft and aluminum heads provide 470 HP worth of Mopar muscle.Put a 420 hp/460 lbs of torque 383 stroker in a 69 chevelle with a power glide and 3.08s in the rear... in this thread in this sub-forum in the entire site. Advanced Search Cancel Login / Join. ... My 4779 double pumper and Q jet are within 1/2 MPG of each other toss the 600 and 750 edelbrock AFB in there also and a 2 barrel Motorcraft carb ...For those who want to build their own custom stroker small block engine, this partial comes with the specially modified lok, 3.80" forged steel stroker rankshaft, heavy duty onneting rods, hypereuteti pistons, earings, oil pan, oil pump, front over, damper, and 12.75" flexplate.I am looking for advice for a 383 SBC recipe: compression, cam, heads, intake, 5.7 or 6.0 rods, carburetor and so on. I have had Mike Jones grind me a cam in the past and was well pleased with my expectations compared to the finished product. It'll make over 550hp, and peak at 6,700rpm. Had a customer build this.24. Our 383-inch LS1 now out-displaces an LS3 (376 cubes and rated at 436 hp in factory crate engine form), so we expected some solid numbers and we weren't disappointed. The stroker knocked out ...

The new ZZ383-500 puts out an impressive 500 hp @ 5,700 rpm and 491 ft/lbs. @ 4,600 rpm of torque. GILBERT CHEVROLET starts with the GM 383 short-block as the foundation for the ZZ383-500 and adds to it all the tried and proven components that combine to produce this engine.SBC CHEVY 383 STROKER STAGE 2.0 CRATE MOTOR AFR HEADS, 503 hp BASE ENGINE. Available ... No 350 can be built up to the level of a 383 while running pump gas with the same compression. The power and torque numbers down low in the rpm band are what make the 383 such an incredible engine, compared to the 350. ... Horsepower …So here is the engine buildup and dyno test of a typical street 383 that we built with a short-block kit from Competition Products, heads from Canfield, and an …Seeking 500 HP consider building a 383/396/408. Because the engine will need ... 383 that put down (IIRC) around 600 RWHP! It was docile out of boost and ...

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Re: Building a 383 Stroker 1. No expert at the change over, but believe coupler, flywheel, and starter may need to change. 350 crank HP is about 320HP at your alpha prop. For a good comparison, look at the GM HT383 crate engine. I'd shoot more for low 9's w/383. Use D shapped pistons to keep compression in check. 2.If you want to build a 383 for 600+ HP, just get a stud girdle. Reason why folks use a 400 block as opposed to a 383 is that the 400 has a much bigger bore. So with a 383, there's the possible issue of valve shrouding. But if this is a street car, a bored and stroked 383 should be fine. If you're going all-out racing, sure, get a 400.With 500 horsepower on tap already and a twin-turbo setup planned for the future, this 347 stroker will definitely be ready to throw down. Engine of the Week is sponsored by PennGrade Motor Oil , Elring – Das Original and Scat Crankshafts. If you have an engine you’d like to highlight in this series, please email Engine Builder Editor, Greg ...Run first with the stock (mild) LM7 cam, Fast LSXRT intake, and Holley Dominator EFI system, the 408 stroker still managed to thump out 449 hp at 5,100 rpm and 522 lb.-ft. of torque at 3,900 rpm. The extra displacement allowed the 408 to exceed 500 lb.-ft. from 3,500 rpm to 4,600 rpm. (Image/Richard Holdener) After running the stock cam, it was ...Ive seen a few 383 and 355 LT1 cars dyno near and in 500 range N/A in person but unfortunately that was a few years ago and i do not know these people anymore. Heads by the way are 55cc chambers so the plan with the builder has been 16cc dished pistons to get 10.8:1 compression for the build.

The first step after removing the tin is to pull the balancer. This puller is also an installer and fits a variety of engines. Engine Specs. Bore: 4.030. Deck: 8.200. Stroke: 3.400. Cubic inches ...Go with a Scat 9000 cast crank for a 6.0 rods about 275.00. Scat 6.0 rods with 7/16 bolts 330.00. Wiseco pistons and rings 425.00. Rod and main bearings 50.00. Balancing in my area is about 225.00. Both ends of the rods may need to be clearanced and maybe the pin bores in the pistons.Step 1. Start with any small-block 350 engine, preferably four-bolt main. You can use an LT-series engine, but the ancillaries will cost more. Have the block bored 0.030 over to 4.030 inches. Have the main bores align-bored and honed, have the deck surfaces milled flat (decked) and have the lifter bores checked and honed.The upgraded wrist pin (PN S718) feature a .200-inch wall as opposed to the standard .150-inch wall thickness and should serve well against the increased piston speed (inherent in a stroker design ...this 383 small-block stroker will deliver 430 horsepower and 450 lb-ft of torque. BluePrint Engines' 600 horsepower 496ci package makes for a. Small Block Chevy 383 Power Adder Base Engine; Good for Supercharger, Turbo Charger or Nitrous; Up to 600hp; 1 Piece Rear Main Seal; Aluminum Cylinder. The 700 Club: A BluePrint Engines 383 Small-Block ...Dyno of a 388 SBC stroker 704hp/617tqChevy Engine Kit - Chevy 383 Stroker Kit, Chevy Small Block Flat Top, at GREAT Prices, Selection, Customer Service, and Low Shipping Rates All From COAST HIGH PERFORMANCE Coast High Performance | (310) 784 1010 | …Forged 383 stroker kits are good for 500 plus horsepower and can endure RPM's in excess of 6500. Cast 383 stroker kits are great for the hot street, strip or oval track 400-500 horsepower range and should be limited to a maximum speed of 6500 rpm or less. A perfectly balanced rotating assembly is a must for performance engines.C3 Tech/Performance - Thinking about building a 383 stroker - Ive been throwing around slowly building a 383 stroker. ... A 400 HP 383 can be done with OK heads and a flat tappet cam. a 500 HP 383 will require very good heads and a roller cam. Plus the bottom end to support it. As said above if you are starting from scratch build the most cubic ...

The upgraded wrist pin (PN S718) feature a .200-inch wall as opposed to the standard .150-inch wall thickness and should serve well against the increased piston speed (inherent in a stroker design ...

From our entry level 475 horsepower Street & Strip Small block all the way to our competition 1400 hp Big Blocks, you'll find an engine to fit your budget and racing program. ... 383 CI 475 Hp Pump Gas ... $7995.95 434 CI 600 Hp Pump Gas $10995.95 434 CI 700 Hp Pump Gas $12995.95 Over the years the GM Small Block has often been referred to as ...The result is a turn-key Chevy small block that delivers performance on a budget and a wide variety of available accessories and upgrades. Our small-block Chevy crate engines range from 383 to 427+ cubic inches, giving you big-block displacement combined with small-block size and weight. Check out our: Hot Rod Series. Super Street Series ...It's time to turn it into a 383 stroker engine! On this episode of Speed Secre... Are you looking to get some major power out of your junkyard 5.3-liter engine? It's time to turn it into a 383 ...Step 1. Start with any small-block 350 engine, preferably four-bolt main. You can use an LT-series engine, but the ancillaries will cost more. Have the block bored 0.030 over to 4.030 inches. Have the main bores align …388 stroker build. This is going to go in my sons jeep for fun in the mud, ok here is what I have done 350 block bored .60 over and clearance for 375 crank, 5.7 rods, KB flat top piston 2 valve reliefs, aluminum heads 200cc intake runners and 64cc chambers,Crosswind Dual plane street and strip 1500-6500RPM intake, 600 cfm Edelbrock, Double row ...Find Parts and Accessories 600 hp 383 stroker for sale KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $50 Off $600 / $125 Off $1,320 - Use Promo Code: TREAT Vehicle/Engine Search Vehicle/Engine Search Make/Model Search In the realm of stroker Gen III/IV small-blocks, a 383-ci motor is a bit on the small side. Proving that a well-executed parts combination can sometimes overcome a displacement handicap, this 383 produces horsepower and torque figures on par with those of many 408- and 427-ci stroker motors, all while burning 91- octane pump gas.1. To prep the LS3 block for stroker duty, LME hones the bores 0.005 inches, cuts the deck surfaces down to 9.225 inches, and then align-hones the mains. All sharp edges are also de-burred to ...

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Jun 1, 2012 · Certainly you can't make 600 hp out of a 383 with them. And for sure you can't do it without a bunch of compression. That's just common knowledge. Well, apparently nobody told brothers Rick... After all, 383 cubic inches is a really easy combo to build with an overbore to 3.905 inches and a 4 inch stroker crank all of which are readily available and affordable parts. I’ve been with Richard when we’ve dyno tested several of these and with good heads and the right camshaft they make anywhere from 525 to well over 600 horsepower ...Chevy 383/475 HP Stroker runs Great. Achieved 0-60 In 3.9 Seconds. Packaged And Crated No charge. Hydraulic Roller Camshaft, Duration @ 050- 242/248, Intake Lift .584 — Exhaust Lift .579. AFR Aluminum Performance Heads with Screw in Rocker studs. New 2.02″ Intake Valves.Chevy 383/475 HP Stroker runs Great. Achieved 0-60 In 3.9 Seconds. Packaged And Crated No charge. Hydraulic Roller Camshaft, Duration @ 050- 242/248, Intake Lift .584 — Exhaust Lift .579. AFR Aluminum Performance Heads with Screw in Rocker studs. New 2.02″ Intake Valves.For those who want to build their own custom stroker small block engine, this partial comes with the specially modified lok, 3.80” forged steel stroker rankshaft, heavy duty onneting rods, hypereuteti pistons, earings, oil pan, oil pump, front over, damper, and 12.75” flexplate.I finally got my motor together and home! HUGE shoutout to Clay Valentine for doing an amazing job on putting my motor together!If you need any motor work de...Te 363 stroker has a 3.400-. inch stroke just like a 347, but it uses 4.125-. inch bores instead of a puny 4.030. This means a bonus of 16 ci (or about 20 hp on. an average street engine), but the ...Jun 21, 2017 ... My first 505 C.I. 400 stroker motor made 612 HP at 5500 RPM and 544 Ft lbs. ... building a 383/400 based engine in my book. Note: Small block ...It's listed as a circle track motor, but there will be little difference between this and a drag motor. You still have to use the good parts. The description on this one says you need to add starter, carb, exhaust, front accessory drive. Figure $150 for a good starter, 500-600 for a good carb, 500 for exhaust.The block is a 383 with a 3.905 bore and 4-inch stroke and 6-inch rod. He started out with a Manley stroker kit for it that included pistons, rings, bearings, rods, and a crank with a 4-inch stroke and large journal. ... 600-HP 427 cid Ford Engine. We recently visited Charlotte, NC to check out a few engine shops in the area, and one of the ...SBC CHEVY 383 STROKER PRO STREET MOTOR 540 hp BASE ENGINE-PRO STREET. Available Add to cart. SBC CHEVY 383 STROKER STAGE 2.0 CRATE MOTOR AFR HEADS, 503 hp BASE ENGINE ... Available Add to cart. BBC CHEVY 454/468 ENGINE, DART BIG M BLOCK, CRATE MOTOR 600 hp BASE ENGINE. Available Add … ….

After the engine was content on 91-octane pump gas with 34 degrees of total ignition timing, the real fun started. Taylor pulled the handle on the dyno and watched as our Powerhouse budget Mouse ...TSP 418 CID 600 HP LS3 Turn-Key Package $ TSP 418 CID 630 HP LS3 Turn-Key Package $ TSP 418 or 421 C.I.D. LQ9 Long-Block $ ... TSP Resleeved 454 CID 700 HP Turn-Key Package $ CHEVROLET PERFORMANCE L8T 6.6L LONGBLOCK $ GM Chevrolet Performance CPP LSX 376-B15 Long Block Crate Engines $handymann3 Discussion starter · #4 · Oct 13, 2009. F-BIRD'88 said: Its not hard to get 400-450hp out of a 350. First thing to do is scrap the 79 heads. If you have a rebuildable 350 core and are on a budget, then stroking it adds unnessary expense.Engine Building Tools; Hose & Pipe Tools; Measuring Tools; Oil System Tools & Trays; Quick Fastener Tools; ... 600 Series Crimp Hose Ends; Hose End Bulk Packs; Threaded Hose Ends; ... WESTCOAST ENGINES Engine Assembly Crate SB Chev 383 Stroker Rumbler 500 HP Long Base Part No: WCE-R383BLB. In Stock - Shipping Now.331 Ford 415 HP Stroker; 347 Ford 425 HP Stroker; 363 Ford 4 Bolt Main 500 HP Stroker; 351W 400 HP; 390 FE 450 HP; 408W 475 HP; Nascar Inspired 408 Windsor 490Hp with Holley High Ram EFI system; 427W 538 HP; 427 Stroker 600 HP; 87-93 350/400 HP EFI Silverado Truck Engine; Serpentine Setup Options; Ford Valve Cover Choices; Ford …383 Stroker and Supercharged Project. ... If anyone knows a good stroker kit or individual parts that are best for the build, it'd be great to hear. Would also like to get some opinions on different superchargers and whatnot. ... You can get very close the 600 hp with a SBC 427 NA. 69 SS396 Cortez Silver(SOLD) 69 Pro Tour - LS3/T56 (SOLD) ...This hydraulic roller has 1.52:1 roller rockers, and 110 degrees of lobe sep. The cam cleared the stock rods giving plenty of valve-to-piston clearance using Speed-Pro pistons. This gives you a 950 rpm idle and a vacuum of 9 inches. This configuration gives me 502 lb-ft at 4,700 rpm and 500-plus horsepower from 5,700-6,200 rpm.Average torque increased by 2 lb-ft, and average power improved by just over 2 hp. That's pretty much a wash—not enough to really feel in the seat of your pants—but since the price difference ...Jan 26, 2017 · Building a 600HP 383 Fits Chevy on a Budget. Visit the Speedway Motors Store. $3689. Brand. Speedway Motors. Theme. Vehicles. Item Dimensions LxWxH. 5 x 5 x 1 inches. 600 hp 383 stroker build, If you want to build a 383 for 600+ HP, just get a stud girdle. Reason why folks use a 400 block as opposed to a 383 is that the 400 has a much bigger bore. So with a 383, there's the possible issue of valve shrouding. But if this is a street car, a bored and stroked 383 should be fine. If you're going all-out racing, sure, get a 400., Yes, when comparing 5.7" to 6.0" rod 383 pistons in most companies offerings, the 6.0" piston is usually a significant amount lighter.. Another nice plus about the 6.0" rod is many 3.75" stroke cranks for this stroker package are available with capability to be internal balance, something that is not so commin with 5.7" rod versions. Reply., Aug 1, 2008 · The Ultimate Guide to the Chevy 383 Stroker Car Craft has scoured the earth to assemble all the details around building a stroker 383 Chevy. See all 12 photos Related Video Jeff Smith... , 535 cu. in. street engine 820 HP and 860 ft/lbs of torque (at only 3800 RPM!!!) and on pump gas! 535 cu.in. Butler Performance Pontiac with a BDS 8:71 blower, CNC ported Edelbrock heads, BP/COMP custom hyd roller cam, and FAST XFI., Motown II World Products 383 Stroker SBC - Prep, Machining, Painting, Assembly, Cutting Rings, Pistons, Rods, Wrist Pins, Spiral Locks, Building, In planning this 600-hp Cleveland stroker, Jim said he wanted to try Trick Flow's new PowerPort Cleveland CNC 225, a CNC-ported aluminum casting with 225-cc intake ports, 60-cc chambers, 2.080/1.600-inch intake/exhaust valves, 340-cfm intake, 240-cfm exhaust, and capable of more than 600 hp. "That's the head I want for this project ..., If I had set out to make 600+ HP I would have started out with AFR 225's instead of the 205's, a Super Vic, more carb, and probably a different cam grind. See less See more '67 Mustang coupe New Dart 427 under construction: AFR 205's-Ported Victor Jr.-Mighty Demon 825-Cam TBD-Miller rockers-Hooker Super Comps-3" exhaust-AOD w/non lock-up 3000 ..., Here's my input on a MILD street 383 with an honest 400+ HP: TFS 23* heads 64cc chambers. 10.3:1 compression KB -12cc dish pistons (or -18cc pistons for 9.5:1 if you want a cam that is less than 270* on the seat) Performer RPM intake. Reuse your 650 cfm carb., This hydraulic roller has 1.52:1 roller rockers, and 110 degrees of lobe sep. The cam cleared the stock rods giving plenty of valve-to-piston clearance using Speed-Pro pistons. This gives you a 950 rpm idle and a vacuum of 9 inches. This configuration gives me 502 lb-ft at 4,700 rpm and 500-plus horsepower from 5,700-6,200 rpm., This hydraulic roller has 1.52:1 roller rockers, and 110 degrees of lobe sep. The cam cleared the stock rods giving plenty of valve-to-piston clearance using Speed-Pro pistons. This gives you a 950 rpm idle and a vacuum of 9 inches. This configuration gives me 502 lb-ft at 4,700 rpm and 500-plus horsepower from 5,700-6,200 rpm., CHEVY LS 383 Stroker 500-600HP COMPLETE CRATE ENGINE PRO-BUILT ALL FORGED 383 LS. $11,999.00., Couple this with a mild hydraulic roller cam & you will be set. I have built quite a few 383's with a 220/230 on a 114 lsa. It will work well with a 3.42 gear & manual trans or auto with a 2500 stall converter. This setup in a …, Introducing our Turn Key Stage 2 Roller cam 383 cid 503 HP engine. The detailed build sheet is at the lower part of this listing, but we felt it important to summarize a few aspec, Nov 1, 2019 · From Junkyard 5.3L to 600HP 383 Stroker Engine. Are you looking to get some major power out of your junkyard 5.3-liter engine? Then it’s time to turn it into a 383 Stroker Engine! In this episode of Speed Secrets, you’ll learn the winning combination to reach the 600-horsepower range…. Still Have Questions? , By Mike Magda September 26, 2012. Chrysler 440 Stroked to 500CI 672 ft/lbs 636hp. Watch on. “It had to run on 87-octane,” says engine builder Terry Walters, when asked about the the 500ci Mopar big-block in this dyno video. Such a strategy wouldn’t have been on his radar screen only a few years ago as Walters shunned 87 octane fuel with a ..., The 383 stroker engines can draw up to 383 cubic inches of fuel in one cycle, from which it got its name, and now it has taken the place of the industry leader. The chevy 383 stroker HP ranges from 370 to more than 600. Note that the 600 HP 383 stroker build costs almost twice as much compared to the 383 stroker kit 500HP. What do we need? , Dyno of a 388 SBC stroker 704hp/617tq, FINAL DAY! $20 Off $250 $50 Off $600 / $125 Off $1,320 - Use Promo Code: TREAT. ... Building a new engine (or restoring an older one) takes time, tools, and lots of tuning, so buying a crate engine can be a wise investment. ... Dressed, Long Block, 383 Stroker, 436 HP, 443 TQ, New Block, Aluminum Heads, 750 cfm Carburetor, Chevy, Small Block ..., If you're rebuilding your 350, then you might as well spec out a 383 kit for an instant 10 percent increase in horsepower and torque from idle to redline., The specs come in at 210/218-degree duration at 0.050-inch lift and a respectable 0.560/0.555-inch valve lift. The cam is ground on a wide lobe separation angle of 113-degrees, which will provide good idle vacuum. 13/25. The timing set is installed and a thrust button is used to control camshaft endplay., This budget 408 stroker Mopar makes over 500 hp with as-cast heads and the right mix of parts. ... 383 LS1 Stroker Built for Boost. Jesse Kiser | Jun 25, 2019. Six-Pack of Mopar Barn Finds., Muscle Motors built this one with 559 hp & 611 ft-lbs. ... the practicality of a 383-based build, Mike told us: "Exact production numbers are hard to come by, but Chrysler only built 400,000 or so ..., 383 Stroker Kit for Small Block Chevy Engine. Start your SBC rebuild off with a solid foundation, Summit Racing offers many 383 stroker kit rotating assemblies to meet your engine build specifications. Actual Engine Displacement: 6.3L/383., Firebird Burnout 600+ hp not your average 383 stroker. Full roll bar .... nice car! street driven!, 383 Chevy 450 HP Street Stroker Engine. 383 Chevy 460 HP Street Stroker Engine (Our Most Popular) 383 Chevy 475 HP Street Stroker Engine. 383 Chevy 500 HP Street Stroker Engine. 502 Chevy 530 HP. Chevy Small Block Engine Choices. 427 Chevy 525 HP Stroker Small Block Engine. 434 Chevy 600 HP Stroker Small Block Engine., The normal price of these engines is $100 more. Buy now to receive this special pricing! Base Pricing from: Chevy 383 — 406 HP or 409 HP: $5195 - Torque Range: 448 - 468 Ft Lbs Torque. The 406-409HP Engines come with Aluminum Heads. The 406HP Engine comes with a Dual Pattern Cam. The 406HP Cam has vacuum for Power Brakes., HOW MUCH POWER DOES A SUPERCHARGER ADD TO A 350 CHEVY? WHAT ABOUT A LARGER, 383 STROKER CHEVY? DOES THE BOOST CHANGE WHEN WE CHANGE DISPLACEMENT AND/OR THE N..., 400ci/508-hp Stroker Small-Block Chevy Long-Block, $5,699. See all 18 photos. We start rolling in earnest with Pace Performance's offer here for BluePrint Engine's 400-cubic-inch small-block Chevy ..., After all, 383 cubic inches is a really easy combo to build with an overbore to 3.905 inches and a 4 inch stroker crank all of which are readily available and affordable parts. I’ve been with Richard when we’ve dyno tested several of these and with good heads and the right camshaft they make anywhere from 525 to well over 600 horsepower ..., Suggestions please...600hp sbc buildup. by lowflyr » Wed Feb 14, 2007 11:03 pm. Hi everyone, This is my first buildup of an engine with this power level....so suggestions/critics are welcome. My goal is a 600hp pump gas (91 octane here in NS, Canada) engine which will see regular street use and weekend dragstrip duty likely on 5-6 weekends a year., Heck, there are a lot of BBC cylinder heads that cost more than $2,500, but our plan was to secure a suitable (running) 454 truck engine, add the necessary (cost-conscious) performance components ..., 383. does not say compression but they do say that it did this on pump gas so you can probably guess around 11:1 max. AFR 195cc street ported eliminator heads. Speed Demon 850 carb. Victor Jr intake. Comp 287TKR-6 cam (259 264 @.050 .645 .630 106 lsa, numbers are with 1.6 rockers on the intake) 615 hp @ 6800 RPM., The fix is to use a new and functional damper with each build. Also a longer stroke crank has a propensity to dip into the oil easier. It pays to install a deeper pan and oil pickup. Just for the record, a half quart too much oil in a 400 cid small block Chevy can cost 12 hp at 6,500 if it gets entrained in the crank.