GM Performance Engine Block, Cast Iron, 4-Bolt Mains, 4.000 in. Diameter Bore, 1-Piece Rear Main Seal, Chevy, Small Block, Each (PART #GMP-88962516)

For a great starting point to build your own hot rod 383 engine, these GM Performance cast iron 4-bolt main engine blocks are just what you need. They feature a one-piece rear main seal, a 4.000 in. finished bore, an oil pan rail machined to accept a maximum crankshaft stroke of 3.800 in., and a lifter valley designed for hydraulic roller and flat tappet camshafts and lifters.

SPECIFICATIONS

Brand GM Performance
Manufacturer's Part Number 88962516
Part Type Engines, Bare Blocks
Product Line GM Performance 383 C.I.D. Engine Blocks
Main Journal Type Chevy 350
Engine Block Material Cast iron
Engine Block Style OEM
Engine Block Deck Height Standard deck
Deck Height (in.) 9.025 in.
Cylinder Bore as Shipped 4.004 in.
Cylinder Bore Diameter 4.000 in.
Maximum Bore Diameter (in.) 4.060
Camshaft Location Standard
Engine Block Weight (lbs.) 181 lbs.
Main Bolt Style 4-bolt
Main Caps Included Yes
Main Cap Material Nodular iron
Main Cap Fasteners Included Yes
Main Bearings Included No
Rear Main Seal Style 1-piece
Finished Cylinder Bores Yes
Raised Cam Location No
Cam Bearings Included Yes
Freeze Plugs Included Yes
Remanufactured No
Quantity Sold individually.
Notes Designed for 383 cu. in. engine combination, will clear 3.800 in. stroke.