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502 MerCruiser / GM Marine Gen6 Brand New engine block with fuel pump provision

502 MerCruiser / GM Marine Gen6 Brand New engine block with fuel pump provision

$ 2041.24

Availability: 63 in stock
  • Condition: New
  • Manufacturer Part Number: M502BB
  • Brand: GM Marine

    Description

    • New GM 502 casting incorporating the best designs of Mark IV and Gen VI
    • Production type 1pc seal cast-iron 4-bolt block
    • 4.446" finished bore
    • 4.560" max bore
    • Machined fuel pump pad
    • New water jackets for use with Mark IV or Gen VI heads
    • Revised oiling to allow for bigger cam bearings/cam lift
    • Bolt boss (not machined) added near distributor hole like 8.1L
    • For use with 6 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
    • Additional boss for manual transmission clutch pivot (machined)
    • Additional material added around lifter bosses