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TRW Pistons - Oldsmobile

TRW Oldsmobile Pistons Part #'s starting with "H" = Hypereutectic Part #'s starting with "L" = Forged Part #'s ending with "CP" = Coated Pistons

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350 Engine (4.057 Bore x 3.385 Stroke) Part # Notes CID Comp Ratio Comp Dist Piston Dome Shape Price/ Each 62.5cc 64cc 70cc 72cc 75cc 80cc L2321F-30 L2320F   L2320F-30   - 68-70 Outside Air Induction (W-31) 68-70 Outside Air Induction (W-31) 355 350   355   9.83 10.36   10.49    9.67 10.18   10.31    9.09 9.53   9.64   8.91 9.33   9.44    8.66 9.05   9.16   8.28 8.62   8.73   1.612 1.612   1.612    .076 x 2.44 dish FT   FT   $54 $54   $54   455 Engine (4.125 Bore x 4.250 Stroke) Part # Notes CID Comp Ratio Comp Dist Piston Dome Shape Price/ Each 62.5cc 64cc 70cc 72cc 75cc 80cc L2390F-30 L2323F L2323F-30 L2323F-40 L2323F-60 - - - - - 461 455 461 463 468 8.99 11.09 11.22 11.27 11.36 8.89 10.93 11.06 11.11 11.20 8.51 10.33 10.46 10.50 10.58 8.40 10.15 10.27 10.31 10.40 8.23 9.88 10.01 10.05 10.13 7.96 9.48 9.60 9.63 9.71 1.735 1.735 1.735 1.735 1.735 .306 dish .142 dish .142 dish .142 dish .142 dish $54 $54 $54 $54 $54

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