Chevrolet Performance BBC Mark IV 454 Block 4.250 Bore / 9.8 Deck, This GM Performance 454 block has 4 bolt mains with a 9.8 (short deck) deck height, The maximum this block can be bored too is 4.310 and max stroke is 4.250 making a 496 cubic inch big block chevy. perfect foundation for any hot rod, drag car or boat!
- GM Performance Big Block Chevy 454 Mark IV / GEN VI Block
- Bare Block
- 4.250 Bore
- 4.240 Bore As Shipped
- 4.310 Max Bore
- 4.250 Max Stroke
- 4 Bolt Main
- 1 Piece Rear Main Seal
- 9.8 Deck Height ( Short Deck)
- Weighs 246 Pounds
- Iron Block
- Each