Dart SBC Pro SHP Iron Block - 9.025 4.125/350 31161212

SHP Pro Chevy Small Block Iron Block – 4.125” Bore, 9.025” Deck

The SHP PRO block upgrades the Special High Performance (SHP) platform with features previously available only through custom mods. It includes upgraded mains, cam and lifters, plus enhanced valve train and bottom-end stability, making it ideal for high-RPM small-block engines. With thick decks, Siamese bores, blind head bolt holes, and full OE bolt provisions, the SHP PRO delivers both performance and reliability under extreme conditions.

• Upgraded mains, cam, and lifters for high-RPM performance
• Enhanced valve train and bottom-end stability
• Priority main oiling system; aftermarket oil restrictors available
• Siamese cylinder bores with extra-thick walls for strength
• Thick decks and blind head bolt holes ensure gasket reliability
• Full OE bolt provisions; accommodates 3.750” stroke with steel rods

Engine, SHP PRO, Bare Block, 4.125 in Bore, 9.025 in Deck, 350 Mains, 4-Bolt Main, 2-Piece Seal, BBC Camshaft Bore, Iron, Small Block Chevy

  Oversized    Air Restricted      Ships via Truck Freight only (additional shipping charges apply; see our Truck Freight policy for additional information)