5:1 compression ratio (with 64cc cylinder heads) •4340 I-Beam Rods This Chevy 383 short block engine is ideal for a shortblock on a budget. High Performance Crate Engines from Mopar Performance! Choose your Level of Performance with Small Block, Big Block and Hemi Engines from Mopar! Four Levels of Hemi Performance! Choose From a Streetable 465 HP or Blast Down the Track with 640 Tire-Melting Horsepower! MN1981 MN1974 MN1978 High Performance Crate Engines. Camshaft is MP P4452759. Big Block Mopar Match Up Dodge, Plymouth, 383, 400, 440, Pair More Info OF THE BOX AND THEY'RE GONNA GIVE US THAT 10. my questions are as follows: 1. The guide goes over the entire range of Mopar engine identification beginning in the late 1950’s and up through the early ’70’s. I have been experiencing the hard starting issue with both of my 361 and 383's lately, as well as other Mopar big blocks, it seems the issue is heat rises up through the engine after you shut it off, and boils the fuel in the carb and causes vapour lock. Rickey has a 71 400 with the 509 cam,9. The first B engine was launched in the 1958 model year, in 350 and 361 cubic inch versions. 0:1 Power: 525 horsepower. Mopar Compatible Heads. For C Bodies Only Classic Mopar Forum. We have a spring upgrade available which will give you 130# seat pressure and 325# at. The 142022 SRP Pistons 400 Dome 409 SB Chevy 4. True Start for Mopar, Mid-plate Mount, 12 Pitch The Meziere 400 Series starters are the benchmark for performance racing engines. The Mopar 400 Big Block engine for Chrysler, Dodge and Plymouth makes is a member of the B-series of V-8 engines. Enter the cylinder bore diameter. 355 compression height. CSI Automotive Sales, Service & Parts. Chrysler, one of the most dominant names during the early "Muscle Car" era, has developed five basic series of engines which are popular choices in racing, street performance and towing applications. compression with everything else equal. The aftermarket replacement pistons are only. For C Bodies Only Classic Mopar Forum. The 400 cu in (6. At this point the load on the spring is 400 lbs. We tailor to all years of Cummins diesels and Mopar related Trucks, Jeeps and SUVs, and with the vast tech and help knowledge of our great members, you can get help or info on practically any make or model vehicle!. For more information and added details, please contact the Mopar Performance Tech Line at: 1-888-528-HEMI (4364) or go to the website www. 400 build How did you get the compression up to 10:1? I run a. 760 (440 stroke and rod) but because the block is 3/4”shorter, the piston is 3/4” shorter and literally half the weight. 440, 413, 426 C. Mopar Performance Purple Shaft cam (. This page was created with the marriage of three different pages so that everyone could use it for the furtherment of knowledge and use, happy MoParin'!. wall: oal: flange thickness: flange diameter: application: ford™ duratec™ 2. I have a set of new forged mopar 340 +. Small cam and low compression can give the same cranking compression as a large cam and high compression. The crank, pistons, and rods are all forged, and the engine is topped with aluminum cylinder heads. When building a high- performance engine or Magnum engine, you need to choose between hypereutectic and forged pistons. 398 104 104 1000-3500 stock 817 b comment: good low end torque and pulling power. It is often said that for an engine to run you need fuel, air, and spark. than deck the block to 0 deck hight should give 9. Ask anyone who's tryed to tame too much compression by just shoving in a bigger cam. Factory pistons were cast and could have as much as -0. Stock 1972 pistons for a 400 should raise the compression to almost 10:1. TURN KEY ENGINE. My gauge I have had for years, I drilled the check valve out WAY bigger than when it came from snap on. 75 stroke since a 1. Mopar, before they moved away from selling all but the latest crate engines, did offer a Super Commando 440… but it wasn’t a big block. What would be required to do that, a 400 crank? Do I have to change my pistons and rods? By the way, my block is bored. The compression ratio of your engine has a direct relationship to how much boost you can run. Used 2013 CADILLAC Escalade from Doug Smith Automotive Stores in American Fork, UT, 84003. s the 400/512 for pump gas on the street. Other parts may be available from MPS that are not listed on the MPS website. 6 roller rockers to bump the lift up above the mid. The motor was built 15 years ago and put on an engine stand and has been there ever since. just want more power:) most likely going to be. For over 60 years, JE's position at the forefront of. 100 deck height, making for low compression and crappy efficiency. Cranking compression isn't the be-all end-all of octane tolerance. High Performance Crate Engines from Mopar Performance! Choose your Level of Performance with Small Block, Big Block and Hemi Engines from Mopar! Four Levels of Hemi Performance! Choose From a Streetable 465 HP or Blast Down the Track with 640 Tire-Melting Horsepower! MN1981 MN1974 MN1978 High Performance Crate Engines. mc2200 hyd 2 194 204 270 278. Cylinder Compression Pressure Table Bob Spidel and Harlan Polk Per Wikipedia: If the nominal compression ratio of an engine is given, the pre-ignition cylinder pressure can be estimated using the following relationship: where is the cylinder pressure at bottom dead center (BDC) which is. 500 bore, 4. 1939-1940 Chev. c's, ("stock" can vary 6 to 8 c. We also have a couple of options for the heads. THE 383 MOPAR B is a remarkable engine,it was born the same time all of the other big blocks,outshadowed by the 413,426,440 wedges,this engine is all I ever needed to shut down the Saturday night crowd back in summer of 68-69,b-rb engines don’t like a lot of duration,when goin for super output make up your mind to drive street or full drag,as. decoding facility should prove to be a valuable resource for the MOPAR enthusiast. Diesel Compression / Leakage Tester Adaptor M8 1mm x 147mm - Chrysler Jeep CRD. 980 is perfect for a 3. Mopar Performance "452" cylinder heads before being sent to Modern Cylinder Head for cnc porting. The MAHLE ProSeries piston was developed to meet the demanding needs of professional racers. 6:1 T&D rocker arms) solid roller cam. 6L/400 Mopar big block B Camshaft Kits and get Free Shipping on Orders Over $99 at Summit Racing!. Horsepower ratings (A bit of an apples to pumpkins comparison). Doesn't always work. 25 stroke, 6. Was a big hit and had a blast. Small cam and low compression can give the same cranking compression as a large cam and high compression. Some prototypes for the EH1 featured Mopar Performance W2 heads, although the production units had the standard 360 heads. When building a high- performance engine or Magnum engine, you need to choose between hypereutectic and forged pistons. 76s, and it's an 8 1/4 which wasn't even supposed to be available with the 360 that year. 714" lift (with 1. 100" rod, and 1. Find CHRYSLER 6. These have never been installed so only wear is from storage. -Attach Mopar timing tape or measure and mark degree increments on the vibration damper to about 40 BTDC. It covers how to build Mopar's 383-, 400-, 413-ci, 440-ci engines to these power levels. 055 thick gaskets for. We are going to pull it apart just to make sure nothing is stuck and re-lube everything. FREE Mopar Swap Meet Forums,Mopar Parts, Mopar Classifieds Tech Forums, Mopar Tools, and much more. 60 over 400 with SD intake, 452 heads, Summit 6401 cam (slightly larger then a six pack cam), headers with 2. Opening a shop in Huron, Ohio and Walled Lake, Michigan, Koffel’s now build custom engines for drag racers across the United States as well as overseas specializing in mopar performance. Used 2018 Honda CR-V from John L. For over 60 years, JE's position at the forefront of. Compression Test As promised. 040" but the later low. my questions are as follows: 1. When building a high- performance engine or Magnum engine, you need to choose between hypereutectic and forged pistons. The motor was built 15 years ago and put on an engine stand and has been there ever since. 2020 Thor Mx Mens Full Length Compression Socks Offroad Dirt Bike - Pick Size. (Remember, the 351M uses the same rod as the 400 with 0. 6 L) B engine was introduced in 1972 to replace the venerable 383, and were power-rated via the net (installed) method. Increased compression (9. If you don't see what you're looking for, please feel free to use our Parts Request Form or visit our Customer Support page. Designed with an eye on the unleaded gas/low emissions future, the 400 was created by enlarging 383′s bore to 4. RE: Horsepower? 1973 400 cubic inch V8 Mopar / Plymouth Fury? What is the horsepower rating of a 1973 chrysler V8 engine 400 Cubic inches 2 barrel carb This is in a 1973 plymouth fury non taxi, non poli. The compression ratio that is built into your engine is called "static compression. 5:1 or 10:1, you will only be able to run a small amount of boost. AMC 258 I6 Bore x Stroke 3. Mopar ® Performance Parts. 250 stroke, a 6. What you see in pics is what you get. in Sterling Heights, MI, 48313-3730. Description Bore Stroke # of Cylinders Cubic Inches Litres 170 Slant Six 3. Below is information you may find helpful in tuning your Dodge Truck. The key to making the power and moving the torque curve where it could be most beneficial on the street was the hydraulic roller camshaft from Howard Cams. Chrysler Dodge Plymouth Mopar Performance Parts and Racing Parts for Mopar Engines and Transmissions: Home >Chrysler Dodge Mopar >Pistons >400 Flat Top Pistons. Pony cars were typically 2-door coupes and convertibles that were a bit smaller and more sporty than the traditional intermediate platforms. Aftermarket torque converter with slightly higher stall speed is recommended because stock factory converters do not allow the engine to provide adequate idle speed and off idle performance. Whether you're looking for memorable gifts or everyday essentials, you can buy them here for less. Naturally aspirated Mopar Wedge big-blocks are quite capable of producing between 600 to 900 horsepower. Racing pistons, performance pistons, piston rings, custom piston, Diamond Racing provides high performance racing engine pistons and products for all your performance racing needs. 700" length. Buy this Used 2008 Ford Taurus in Seneca,SC. I have a rebuilt 400 that is stock with 30 overbore flat top pistons and trying to find the least expensive way to get a little more compression for now with better quench due to the possibility of doing a stroker sometime in the future not wanting to deck the block etc I have a set of heads that have been ported etc and they are at a shop getting checked for cc etc I'm looking at the KB240. The 451, which is made by dropping a 440 crank into a 400 block, has almost perfect design parameters. As many others have posted it depends on alot more than just compression ratio, but if you're running all iron and carburated I would say 10. building a Mopar 460 from a 400 block, an affordable 383 a reliable 440 race motor, (see the "Books" section of the References Page); and more. Build, price and search local dealer inventory to find your new Chrysler vehicle. New, Used and OEM. Scotts Speed Shop 5,156 views. Not only does it reduce the burden on one's pocketbook in regards to fuel savings, but a good tuneup also reduces tailpipe emissions. The information listed in the table below in conjunction with my V. Numbers are engine 2468030-2 year on block 2/7/64 head numbers 2408516-5 , I need to know as she dropped a valve cracked a piston any help would be appreciated Thanks Eric. "offset" ground Mopar production 440 crankshaft (internal balanced in the rear for "0" balanced flywheels / torque converters) 3. I build them all. The crank, pistons, and rods are all forged, and the engine is topped with aluminum cylinder heads. One of the original stroker kits for big block Mopars. Professionally built, bored and stroked 400 CID (451 CID. Click on Calculate Displacement. Horsepower gains range from 30% to 75% as determined by boost levels, engine volumetric efficiency, existing modifications, etc. From 1963-1978, 6-bolt valve cover. How much to mill. Compression: 10. Wiseco is a USA manufacturer for performance products such as forged pistons, clutch baskets, gasket kits, connecting rods, valves, crankshafts, and camshafts for motorcycles, dirtbikes, ATV, snowmobiles, PWC and automobiles. Cars (US) » mopar 413. These have never been installed so only wear is from storage. Most would say that they offer you decent performance for a fair price. New 2020 Jeep Cherokee LIMITED 4X4, from Route 18 Chrysler Jeep Dodge Ram in East Brunswick, NJ, 08816-2303. Stock 1972 pistons for a 400 should raise the compression to almost 10:1. Increased compression (9. Our Chrysler engines have both the small block (318 & 360) and big block (383, 400 & 440) drop in ready crate engine packages available. Mopar Performance "452" cylinder heads before being sent to Modern Cylinder Head for cnc porting. 030 Bore 10. It was a consistant low 12 sec car. 75 stroke x 6. I am the original ownerof a C400, hull #87. push in style breather cap to fill any extra valve cover holes in in mopar performance parts cast aluminum valve covers-use with grommet (P4529882) 9. It covers how to build Mopar's 383-, 400-, 413-ci, 440-ci engines to these power levels. 400 / 440 WEDGE FLAT TOP These pistons feature a completely new design configuration that will accommodate intake valve diameters of up to 2. I think the heads are probably stock, but I dont know what castings they are. the car currently has the numbers matching 318 in it (thats going into storage) and i am looking for either a 426 Hemi to drop out of the sky for free or possibly a 440 rebuild to drop in it. 0:1 Power: 525 horsepower. They’d managed to find that displacement inside the LA block and it produced an astounding 530 horsepower. For over 60 years, JE's position at the forefront of. Why? Simply because the 340 was designed from the outset as a performance engine. Stay informed with the latest news, product releases, and specials. However, a diesel engine requires very high compression, usually 350 psi or more because it relies on this compression process to ignite the diesel oil. 320 CH piston. I have a 400 (actually 406) that I don't need anymore. 400 / 440 WEDGE FLAT TOP These pistons feature a completely new design configuration that will accommodate intake valve diameters of up to 2. 262, 265, 267, 302, 305, 307, 327, 350, 400 c. Give us a call at to schedule a test drive or stop by our Pleasanton dealership today! 2T1BPRHEXHC805627. We plan on checking the clearances as far as the valves. Most muscle car enthusiasts know that the horsepower ratings of the engines were deliberately set lower than what they actually made. the engine ran like a raped ape in the rv. Sport 400 compression I am still only getting 90 lbs of compression, but this is driving me crazy!!! It idles great and will go around 10 -15 miles per hour but will not rev up much, cuts out after one rev or so, and will heat up and then die and will not start until it cools down. This will also cause low compression in that cylinder, and a compression test will tell you. 535" rod) Approximate Bobweight: 2140. High performance KB Chrysler 400 pistons offer a significant performance improvement for your engine, at a very affordable price. Follow along in the April 2013 issue of Mopar Muscle Magazine. Mopar Performance "452" cylinder heads before being sent to Modern Cylinder Head for cnc porting. After about 1969 they were all pretty much Blue except for a few odd balls. QA1 provides performance shock absorbers, suspension, driveshafts, rod end bearings, ball joints and more for circle track, drag racing, street performance, street rodding and industrial markets. We offer a variety of Mopar 400 Pistons for your automotive needs. Ask anyone who's tryed to tame too much compression by just shoving in a bigger cam. 80 rod ratio yields a nice light compression height of 1. 016, which should equal out to a. Build, price and search local dealer inventory to find your new Chrysler vehicle. I run a 11. If the compression in a gasoline engine is too high, it can cause a problem known as preignition or detonation. The main thing about the 400 is its lower 8. Cylinder Heads - One of the ways to make your flathead look racy is by adding finned aluminum heads. Compression depends on many factors. 400/451 cubic inch: 3. Browse your favorite brands affordable prices free shipping on many items. Which gives the 400/512 a rod ratio of 1. Below is information you may find helpful in tuning your Dodge Truck. Chrysler Corporation’s first V8 engine tapped expertise in creating high-performance airplane motors; it was efficient, durable, powerful, costly, and slow to build. 760" rods with the flat top pistons, 74cc Victor max wedge heads,so compression is a bit over 12:1, and running a decent sized 0. Rotating Assemblies. In my 29+ years experience, the 400 block is THE best wedge block for performance engine builds. 760 (440 stroke and rod) but because the block is 3/4"shorter, the piston is 3/4" shorter and literally half the weight. Mopar Performance is Chrysler's in-house performance parts division, and offers both cast-iron and aluminum performance cylinder heads. 039 thick, for a difference of. For more information and added details, please contact the Mopar Performance Tech Line at: 1-888-528-HEMI (4364) or go to the website www. Mopar - Dodge, Plymouth and Chrysler Engines - Slant 6, 318, 340, 360, 361, 383, 400, 413, 426w, 426hemi and 440. MOPAR 340 X Heads 340x heads,202-160 valves,just got from machine shop,ported-polished,3 angel valve job ,also got ajustable rockers,and push rods,1,200. 980 is perfect for a 3. CSI Automotive Sales, Service & Parts. I’m trying to locate some people I used to know; please click here for more details. Buy and Sell Group. It'd be an absolute dog without new pistons and heads. The compression ratio is a single number that can be used to predict the performance of any internal-combustion engine. 00 to 1 Compression EZ-I Heads Comp Hydraulic Cam (. 00 Cast valve cover grommet set-V8: set of grommets to service cast aluminum valve covers. Cylinder compression tests are performed to identify any cylinders that have poor compression. Thanks to Eddie Hostler and Hemi Andersen, and the Chrysler Engines book. The 400 crank has bigger dia. by David Zatz. Heads are "308" swirl port heads from 1988-91, rebuilt with competition valve job and a slight mill to true up the surface. 010 difference in head gasket thickness will increase compression ratio by. and R Auto Parts AC80 Compression Block Off Kit. I have the 440 source 500" stroker kit for the 400 block, 4. 25 ring and pinion, automatic. Used 2013 Dodge Grand Caravan from Sterling Heights Dodge Chrysler Jeep, Inc. Forged out of the need for a better piston, our goal then was to offer a superior product that was competitively priced. com for: 5th Avenue ,Cirrus, Concorde, Conquest, , Cordoba, E Class, Imperial, LHS, Laser, Lebaron, New. Whiplash cams are designed for the very low compression Mopar O. Cranking compression is kind of like a Dynamic Compression indicator. You will get everything I have for one price. Jul 29, 2015 #16. Billet Aluminum Chrysler Big Block V-Belt Pulley System for 383-400 Engines with A/C, Power Steering and Alternator. Listed here are tons of different applications of dished, flattop and domed pistons for nearly every possible combination you can get out of a big block Mopar!! Our premium forged Platinum Series pistons are made from the same aerospace quality 2618 T-6 aluminum billet as the high dollar name brands. The MAHLE ProSeries piston was developed to meet the demanding needs of professional racers. 1/4 - 3/4. Most muscle car enthusiasts know that the horsepower ratings of the engines were deliberately set lower than what they actually made. 3 mm) was the largest used in any production Chrysler V8 at the date of its introduction. I have a 1968 Mopar 318 engine. You can find your casting number on the left hand side of your engine. 34" bore, its pistons are larger in diameter than the 440. 02 intake, 1. High Performance Crate Engines from Mopar Performance! Choose your Level of Performance with Small Block, Big Block and Hemi Engines from Mopar! Four Levels of Hemi Performance! Choose From a Streetable 465 HP or Blast Down the Track with 640 Tire-Melting Horsepower! MN1981 MN1974 MN1978 High Performance Crate Engines. 060 pistons. Ask anyone who's tryed to tame too much compression by just shoving in a bigger cam. 440 low compression on one cylinder 440 low compression on one cylinder - Dodge Ram, Ramcharger, Cummins, Jeep, Durango, Power Wagon, Trailduster, all Mopar Truck & SUV Owners. Valve reliefs have been machined to accept long duration, tight lobe separation cam profiles and ring grooves are machined for 1/16, 1/16, 3/16 rings. idea-with that low compression motor with that cam it should not ping. 5:1 compression, solid lifter cam, tunnel ram with two squirters, Mag ignition and a 727 automatic transmission. Our Chrysler engines have both the small block (318 & 360) and big block (383, 400 & 440) drop in ready crate engine packages available. Use this calculator to see what the effect of bore, stroke, rod length, cam timing, compression ratio, boost pressure and altitude is on your dynamic compression ratio. Ames Performance Tri-Power Pontiac Nationals. 318 Engine specifications Engine specs according to the 1979/82/84/85/87/89 CPD Factory Service Manuals. 413 Big block mopar + trans for sale, low miles $400 Members Login; Login with Facebook but with a dinky little cam and low compression because its 1972. Increased compression (9. Both version had a lower 8. Deck Height: The 400 block, with a deck height of 9. 400˝ Bore Space 432 cid Small Block Chevy. Ask anyone who's tryed to tame too much compression by just shoving in a bigger cam. Checking Compression Ring Gaps Ring gaps are often a confusing and misunderstood part of a re-ring job. Dodge Chrysler Mopar V8 Stage 2 420/443 Lift Cam Camshaft 350 361 383 400 MC1787 You are buying a BRAND NEW Engine Pro MC1787 Hydraulic Flat Tappet Camshaft! This camshaft fits 1958-78 350, 361, 383, 400, 413, 426 (EXC HEMI), 440 C. The 451, which is made by dropping a 440 crank into a 400 block, has almost perfect design parameters. Go for the new block to make this a 100% new engine or keep the cost down with our seasoned block choice. torque Originally introduced in 1964 as a racing engine, the legendary 426 Hemi first appeared in 1966 street B-body Dodges and Plymouths, such as Dodge Charger, Dodge Coronet 500, and Plymouth Belvedere. Different harmonic balancer than 400 Production of the 400 and 351M engines ceased in the early 80's, as oil prices began to sky rocket and federal EPA regulations became stricter. To determine the compression, three things about the engine must first be known: block height, connecting rod length and crankshaft stroke length. Fully balanced and ready to assemble rotating assemblies from Callies not only save you time and money, they provide the peace of mind that your components are matched for compatibility, giving you a trouble free project. We take a 440 and build it back to the basics. The first is the manual version which requires you to do all the math as accurately as you can, and the second - and probably the most common - requires a pressure gauge fitted into an empty spark plug socket. "Stock" copression in a Mopar can run from 7. 400/451 cubic inch: 3. Chrysler Dodge Plymouth Mopar Performance Parts and Racing Parts for Mopar Engines and Transmissions: Home >Chrysler Dodge Mopar > >400 Flat Top Pistons. 9:1 Compression Best Price is wait for you. Deck Height: The 400 block, with a deck height of 9. c's, ("stock" can vary 6 to 8 c. We already have the short block. 535 and a 1. Also the 7. No, this is not plagiarism! If you have read a slightly less polished compilation on the Internet here, don't write me a nasty e-mail saying that I stole this please!. 535" (BBC) rod, and 1. Can anybody help please I am in the UK, I have a 65 Plymouth sports fury 3 commando 426 2 door but looking on line at casting numbers the 413 has same engine number as 426. We are the premiere place for 1st gen and 2nd gen Dodges as well as a great source for newer models as well. Applications. The GTX and the R/T featured the high compression, big valved, hot cammed, dual exhaust, unsilenced air cleaner, 375 horsepower earth-moving 440 HP. I want to build it up, to produce 350 to 400 HP. 4340 Forged rods; 6. Brand New. Near dead on specifications within. 6 L) B engine was introduced in 1972 to replace the venerable 383, and were power-rated via the net (installed) method. Most muscle car enthusiasts know that the horsepower ratings of the engines were deliberately set lower than what they actually made. 1966 Ford Fairlane 500 R-Code ⚪️ ⚪️ ⚪️ ⚪️ ⚪️ Some facts Special: 1 of 57 R-Code Fairlane 500s produced in 1966, Built to qualify for NHRA and IHRA Super Stock Racing. The value will be returned in CR, Compression Ratio from ALL input values excluding Total Volume. Since we want to maintain a zero deck height and the head gasket bore is pretty constant (there are thicker gaskets available but that defeats the purpose of zero decking, more on that next week), we are left with changing either the combustion chamber. Some police package cars came from the factory with a steel crank and h-beam rods. If the compression in a gasoline engine is too high, it can cause a problem known as preignition or detonation. Our Chrysler engines have both the small block (318 & 360) and big block (383, 400 & 440) drop in ready crate engine packages available. 8-inch high compression aluminum bullet tweeters are the perfect addition to help get the most out of your music. Engine Options - single two barrel carb, single four barrel carb, three two barrel carbs and two four barrel carbs Body types - A, B, C, E. Bolting one together without any custom grinding, porting, special machining, or other smoke-and-mirrors trickery may seem impossible, but it makes it that much more palpable for the average guy. 165 Bore 12. Otherwise follow the cam manufacturer's guidelines for compression, gearing, converter stall speed etc, and you won't go wrong. MCC408 Mounts Like The Stock Dipstick And Is Compression Fit With Mounting Tab: Length. 2 compression ratio. Or step up to the next level with the. 363 / 500 Horsepower. 75 stroke x 6. "A Parts Book 400 HP 318" - Mopar Muscle - September 2004 This particular combo from an article in Mopar Muscle Magazine made 400 hp at 6,150 RPM and 382 lb/ft peak torque at 4,900 RPM:. At this point the load on the spring is 400 lbs. Description Bore Stroke # of Cylinders Cubic Inches Litres 170 Slant Six 3. 91 gears and 3500 convertor. AMC 258 I6 Bore x Stroke 3. Re: Why not build a 400 BB Mopar? I am a huge fan of the low deck B-engines. Same block as 400, but crank is back to 3. We have a spring upgrade available which will give you 130# seat pressure and 325# at. Bolting one together without any custom grinding, porting, special machining, or other smoke-and-mirrors trickery may seem impossible, but it makes it that much more palpable for the average guy. The B Engines: 350, 361, 383, and 400. 75 stroke since a 1. Also I most likely will be running a edlebrock 650 on it. Stage V cast-iron heads have a 200cc intake runner and a 90cc combustion chamber, and are offered unassembled, though they’re machined to except Mopar replacement engine parts. Fast-forward to 2004, and 396 ci means a moderately sized stroker small-block. For C Bodies Only Classic Mopar Forum. For over 60 years, JE's position at the forefront of. The compression ratio is a single number that can be used to predict the performance of any internal-combustion engine. Compression Ratio is an important variable in building a performance engine. We work every day to bring you discounts on new products across our entire store. If your car is blowing blue smoke out of the tailpipe, or if your car is losing lots of oil, you could have a bad piston ring. What you see in pics is what you get. I forgot to take pictures yesterday when I did this, plus I did it a slightly different way than the way I am going to explain. Call (732)-416-4285 for more information. Opening a shop in Huron, Ohio and Walled Lake, Michigan, Koffel’s now build custom engines for drag racers across the United States as well as overseas specializing in mopar performance. 5:1) is recommended for maximum output. Compression Ratio Calculator Use This Free Tool To Compute Your Compression. At least thats what mine was. The GTX and the R/T featured the high compression, big valved, hot cammed, dual exhaust, unsilenced air cleaner, 375 horsepower earth-moving 440 HP. Buy Direct and Save up to 55%. When it comes to amping up your vehicle’s performance, Mopar ® Performance Parts can make it happen. Chrysler increased the bore size of the 383 to create the 400. the "B" blocks (361-400) are known to be inherently stiffer and less likely to have "cap walk" as is dreaded in most high-hp RB's. I think the weight on this car would make those numbers readily possible with a slant. We have these piston sets available in a wide range of sizes including standard bore and many popular oversizes. CHROME VALVE COVER BOLT SET BIG BLOCK MOPAR 383 400 413 426 440 12pc. The engine should be capable of running on the street, with decent idle characteristics and low-end torque. One of the original stroker kits for big block Mopars. The compression ratio is a function of cylinder head volume in c.