6010-4165 481 Stroker Big Block Oldsmobile FX Series -12cc Flat Top Oldsmobile Forged Piston Set 4.165 inch bore Pin Dia.: 0.99" Comp Height: 1.26"
$669.95
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490 Big Block Oldsmobile, FX, Comp Height: 1.26, -12cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1/16-1/16-3/16" , Stroke: 4.500", ROD: 7.1, Approx Comp Ratio: 72cc-11.8, 75cc-11.47, 77cc-11.24
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