#Big blockblock pro

Keep in mind that sleeve thickness is not so important as is the aluminum left between the bores.įreeze Plugs: All aluminum blocks include screw in freeze plugs. These blocks can be safely bored to 4.560” but the engine builder must make the final decision based on the application being builtįor. 200” aluminum surrounding the sleeve (except between theĬylinders of course). Hammer and a block of wood is not acceptable due to the chance of sleeve bounce.Ĭylinder Wall Thickness: Sleeve OD on all BBC blocks 4.685”+ approximately. NOTE: It is very important that you draw down each and every sleeve to assure that it is seated prior to decking the block. Sleeves do not protrude into the water and are considered a dry sleeve. Block is machined to incorporate an o-ring behind the sleeve to keep oil from traveling up between the sleeve and the block. Sleeves are a replaceable, centrifugal cast ductile steel pressed in ±.005” Cylinder bores are of a Siamese design. 8437) Lifter valley is drilled and tapped (5/16 fine thread) to accept a lifter valleyĬylinder Bores: 4.240” or 4.490”. (Lifter bore size is standard Chevy diameter.

#Big blockblock pro

Rear Main Seal: Standard Big Block Chevy two-piece rear main seal, Fel Pro # P29182 is used Torque spec on main bolts both inner and outer is 95-100 ft. Main Caps: Billet steel, Center three caps have splayed studs. Main Bearings: Utilizes Big Block Chevrolet style main bearings. Standard Cam(includes, Screw in Freeze plugs, Cam plug, All dowel pins and Pipe plugs) 085500īlock Applications: The BMP Aluminum BBC blocks are designed to be a replacement for all OEM bbc blocksīlock Weights: BMP BBC Aluminum blocks with main caps, hardware and cylinder sleeves 130lbsĭeck Height: 9.800” or 10.200” (depending on part number)Ĭam Bearings: Accepts Standard Big Block Chevy Cam bearings. Can be machined for a 55mm bearing Technically, they could be had by anyone who knew the right codes to order them by.Bill Mitchell Products BBC 357T6 Aluminum Engine Block Chevy Big Block 454 Mains, 9.800″Deck, 4.240″ Bore. These were rated for anywhere between 410-425 horsepower, but often made much more on the dyno. The stand-out Ford big-block has to be the racing-special Ford 427 big-block, though. On the downside of things, the FE engine parts are unique to this engine, therefore not interchangeable with other engines. Other engineering innovations including a forged crankshaft on some later engines. This tech included higher proportions of nickel alloy in the block to make Ford blocks among the strongest engine blocks out there. The FE engines are also credited with modernizing the rest of Ford's V8s with the technology they pioneered through the six versions. The FE engines have not been produced since the 1970s but are still popular, and with some maintenance, quite functional. The sizes of the engines varied from 332 cubic inches (5.4-liters) to 428 cubic inches (7.0-liters). The big block engines that Ford is most famous for are the 'FE' engines. But until the big block engine was replaced, it was king of the road. Which of course leads to the question of who made the best small block. Each company eventually succumbed to the needs of the consumer and the economy overall, which dictated that companies produce smaller engines that were just (if not more) as powerful and had better fuel economy. But the fact still remains that only one of these manufacturers has ultimate bragging rights.īoth Chevrolet and Ford had outstanding runs in producing big block engines that could power both cars and trucks. Updated February 2023: The jury may still be out regarding who made the best big block V8 engine of the time, with cost-to-power often being an important differentiator, as you'll see. At the time though, the primary issue with big block engines was the challenge in trying to fit them into small cars that simply did not have enough room. Modern tech means some big-blocks can push well over 1,500-2,000 horsepower with the right mods. Horsepower figures were officially in the low-400s at the time, but it wasn't unheard of for big-blocks to make several times more.