The legend is reborn with the 302 big bore block! Stronger than the original! Block is Ideal for both high horsepower and endurance applications 
• 4.125" bore capacity, finished at 4.115" rough bore. Also available in standard bore version, part number: M-6010-BOSS302
• 8.2" deck height, finished at 8.200" plus .010" to .015"
• Designed with optimized cylinder wall length for stroker applications up to 3.5" with no grinding or clearancing.  (Depends on crank/rod manufacturer)
• Splayed 4-bolt main on 2, 3, 4, main caps
• 2-bolt main on first and fifth main caps
• Main bearing bores finished to low limit
• Finished lifter bores
• Machined to accept factory roller lifter guides and lifter guide retainer
• Fits factory 1979 - 1995 Mustang oil pan with custom oil pickup tube, part number: M-6622-BOSS302
• NASCAR inspired front oil feed on both lifter galleys.
• Revised cooling system passageways
• Siamese bore
• Increased bulkhead material
• Threaded core and galley plugs (straight thread port plugs with O-ring)
• Requires special length 1/2" head bolts M-6065-BOSS or head studs M-6014-BOSS recommended with M-6049-X306/307/Z304DA heads
• Designed for M-6049-X306//X307/C3/D3/Z304DA cylinder heads. Not designed for production 302/351W or M-6049-Y302/Y303/X302/X303/X304/X305 cylinder heads
• Uses common OD cam bearings M-6261-J351/R351
• Unique cam plug M-6026-S351 included
• M-6051-S331 or M-6051-CP331 head gasket recommended

• Designed to be compatible with the original 302 and 351W blocks and includes the following features:
• Designed to use stock type timing cover, timing Cover M-6059-D351 recommended (includes fuel pump provision)
• Fits factory mustang oil pan with custom oil pick-up tube M-6622-BOSS302
• Retains clutch cross shaft pivot hole
• Original Style oil filter location
• Original motor mount boss locations
• Original bell housing pattern

• Weighs approximately 163 lbs.
• Great price and value
• The foundation for 8.2" deck projects

Proven performance - used in Ford Racing sealed 347cid race engines and Ford Racing high performance crate engines, a proven winner out of the crate and thousands of laps before rebuild.