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You are here: Home > Pistons > CP Pistons > Oldsmobile > Dish Top

Dish top pistons in Oldsmobile engine will generally provide compression ratios in the 9.5 to 10.5:1 range which makes them a good option for engines with aluminum heads and larger than stock camshafts. Valve reliefs are configured to work with most types of standard and aluminum cylinder heads and will normally fit camshafts to well over .600 valve lift. Some are available with a dual intake valve relief for use with standard as well as Twisted Wedge cylinder heads.
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CP Bullet Forged Pistons
CP Bullet Pistons - Oldsmobile 455 - 1.250 C/H - 4.125 Base Bore - Dish - -18.0cc - OEM/Edelbrock Heads

P/N: CPP-BO7030
  • 1.250 Compression Height
  • 4.500 Stroke
  • 7.100 Rod Length
  • .990 Pin
  • 1.5 1.5 3.0 Rings
  • Nitrous - Not recommended
  • Forced Induction - Not recommended
Available Bore Sizes: 4.185
Price includes pistons and oil rail spacers (as required), wrist pins, spiral locks and piston rings
CP Bullet Forged Pistons
CP Bullet Pistons - Oldsmobile 455 - 1.740 C/H - 4.125 Base Bore - Dish - -12.0cc - OEM/Edelbrock Heads

P/N: CPP-BO7020
  • 1.740 Compression Height
  • 4.250 Stroke
  • 6.735 Rod Length
  • .984 Pin
  • 1.5 1.5 3.0 Rings
  • Nitrous - Not recommended
  • Forced Induction - Not recommended
Available Bore Sizes: 4.155, 4.165, 4.185
Price includes pistons and oil rail spacers (as required), wrist pins, spiral locks and piston rings