KB Piston Set - 4.065" Bore - 1.5 x 1.5 x 2.5 mm Ring Grooves - SB Chevy (Set of 8) 7-1/8 Dual engine mounting position -

Dual engine mounting position - choose from the original engine position to retain factory transmission

1976-1991 Pontiac Sunbird

2007-2007 GMC Yukon XL 1500

1963-1964 Dodge 880

Exceeding OE specifications

KB Piston Set - 4.065" Bore - 1.5 x 1.5 x 2.5 mm Ring Grooves - SB Chevy (Set of 8) 7-1/8 Dual engine mounting position -Product Description: Piston 4. 0851 in Bore 1. 5 x 1. 5 x 2. 5 mm Ring Grooves Minus 1. 81 cc GM LS Series Set of 8 Created from a high silicon aluminum alloy, KB Performance pistons are lightweight to improve throttle response and RPM changes while still being strong enough to withstand high compression and high temperatures. Each piston is engineered with race ready features like high upper compression ring locations, gas accumulator grooves,