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Dart Big M2 9.800" Standard Cam Tunnel Race BlockDart engineered the Big M to be the strongest, most reliable, and easiest to build big block on the market. The Dart Big M2 is designed from the ground up as a true racing engine block which can be used with standard off the shelf big block components. The Big M2 is cast from premium high strength Iron and beefed up in all the critical areas. A competition oiling system ensures adequate lubrication to the main bearings at high RPM.
FEATURES• 9.800" Deck Height• Siamesed cylinder bores with extra thick walls. (4.250", 4.500", 4.560", 4.600") (minimum .300” thick with 4.625” bore)• Uses +.300” tall Gen VI style lifters• 4-bolt main bearing caps in steel have splayed outer bolts for extra strength• True priority main oil system lubricates the main bearings before the lifters.• Parts kit included (PN: 32000033) - Cam Bearings are not included.
Rated to support 2000+ horsepower engine builds.