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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.




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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

PN: 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, pins, rings, locks and oil rail spacers (as required)
more info
CP Bullet Forged Pistons
CP Bullet Pistons_Oldsmobile 455_1.740 C/H_4.125 Base Bore_Dish _-12.0cc_OEM/Edelbrock Heads

PN: 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, pins, rings, locks and oil rail spacers (as required)
more info