GM Performance Engine Block, Cast Iron, 4-Bolt Mains, 4.000 in. Diameter Bore, 2-Piece Rear Seal, Chevy, Small Block, Each (PART #GMP-24502650)

These are the blocks to buy if you want to build a serious street car or if you want to head to the race track! GM Performance Bowtie Sportsman blocks have been the starting point for countless racing engines. These iron blocks are available in a variety of finish options to build almost any engine combination. Most of these blocks have siamesed cylinder walls and 4-bolt main caps that are secured by Grade 8 bolts. All blocks in this family have a 9.025 in. deck height. The Bowtie Sportsman blocks are a great foundation for your serious street car, circle track, or drag car that makes between 350 and 500 hp.

SPECIFICATIONS
Brand GM Performance
Manufacturer's Part Number 24502650
Part Type Engines, Bare Blocks
Product Line GM Performance Bowtie Sportsman Race Blocks
Main Journal Type Chevy 327 Small
Engine Block Material Cast iron
Engine Block Style Aftermarket
Engine Block Deck Height Short deck
Deck Height (in.) 8.325 in.
Cylinder Bore as Shipped 3.980 in.
Cylinder Bore Diameter 4.125 in.
Maximum Bore Diameter (in.) 4.185
Camshaft Location Raised 0.433 in.
Main Bolt Style 4-bolt
Main Caps Included Yes
Main Cap Material Steel
Main Cap Fasteners Included Yes
Main Bearings Included No
Rear Main Seal Style 2-piece
Finished Cylinder Bores No
Raised Cam Location Yes
Cam Bearings Included No
Freeze Plugs Included No
Remanufactured No
Quantity Sold individually.
Notes Camshaft is raised 0.433 in., and bored for cam roller bearings 2.250 in.

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