GM Performance Parts 19434240 502 Mark IV/Gen VI Bare Block

Description: GM Performance Parts 19434240 Old Number 19170540 502 Mark IV/Gen VI Bare Block• New design casting incorporating the best designs of Mark IV and Gen VI• Production-type cast-iron 4-bolt block• Improved main bearing bulkheads– Bowtie block-style bulkhead• Clearanced for bigger strokes• 4.470" finished bore• 4.500" max bore (siamese)• Fuel pump pad has been added/machined• New water jackets for use with Mark IV or Gen VI heads• Revised oiling to allow for bigger cam bearings/cam lift• Bolt boss (machined) added near distributor hole like 8.1L• Can be drilled for use with 10-bolt front timing cover• Additional clearance added for roller timing chains• Auxiliary oil pressure line added to front of block• Racing-style oil filter cast feature with added oil pressure port• Two bosses added for manual transmission clutch pivot (machined)• Additional material added around lifter bossesSpecs:•Part Number: 19170540•Casting Number:•Deck Height: 9.800"•Fuel Pump Boss: Yes•Cylinder Wall: Siamese•Bore Range: 4.470" - 4.500"•Main Bolt: 4•Main Bolt Degree: Straight•Cap Material: Cast-Iron•Crank Journal Diameter : 2.750"•Oiling: Wet•Seal Type: 1 Piece•Max Stroke: 4.250"•Weight (lbs): 269•Max HP: 700•Usage: Mod

Price: 3361.59 USD

Location: Multiple

End Time: 2024-10-28T13:20:51.000Z

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