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Olds 442

Big Block Oldsmobile

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STEP 1: Choose Cyl Bore Size Show all STEP 1: Choose Cyl Bore Size
STEP 2: Piston Series Show all STEP 2: Piston Series
STEP 3: Connecting Rod Length Show all STEP 3: Connecting Rod Length
STEP 4: Piston Pin Diameter Show all STEP 4: Piston Pin Diameter
STEP 6: Top - Comp. Ratio Show all STEP 6: Top - Comp. Ratio
Compression Height Show all Compression Height
Crankshaft Stroke Show all Crankshaft Stroke
6003-4185 455 Big Block Oldsmobile FX Series -19cc Dish Top Oldsmobile Forged Piston Set 4.185 inch bore Pin Dia.: 0.98 6003-4185 455 Big Block Oldsmobile FX Series -19cc Dish Top Oldsmobile Forged Piston Set 4.185 inch bore Pin Dia.: 0.98
from $749.95
from $749.95
468 Big Block Oldsmobile, FX, Comp Height: 1.75, -19cc Dish Top, PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.735, Approx Comp Ratio: 72cc-10.59, 75cc-10.3, 77cc-10.13 Effective June 15th 2026, These Oldsmobile ring grooves have been updated to the new specifications of 1.2-1.2-3mm. Parts manufactured prior to this date feature ring grooves with dimensions of 1/16-1/16-3/16.
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6003-4165 455 Big Block Oldsmobile FX Series -19cc Dish Top Oldsmobile Forged Piston Set 4.165 inch bore Pin Dia.: 0.98 6003-4165 455 Big Block Oldsmobile FX Series -19cc Dish Top Oldsmobile Forged Piston Set 4.165 inch bore Pin Dia.: 0.98
from $749.95
from $749.95
463 Big Block Oldsmobile, FX, Comp Height: 1.75, -19cc Dish Top, PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.735, Approx Comp Ratio: 72cc-10.49, 75cc-10.22, 77cc-10.04 Effective June 15th 2026, These Oldsmobile ring grooves have been updated to the new specifications of 1.2-1.2-3mm. Parts manufactured prior to this date feature ring grooves with dimensions of 1/16-1/16-3/16.
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6003-4155 455 Big Block Oldsmobile FX Series -19cc Dish Top Oldsmobile Forged Piston Set 4.155 inch bore Pin Dia.: 0.98 6003-4155 455 Big Block Oldsmobile FX Series -19cc Dish Top Oldsmobile Forged Piston Set 4.155 inch bore Pin Dia.: 0.98
from $749.95
from $749.95
461 Big Block Oldsmobile, FX, Comp Height: 1.75, -19cc Dish Top, PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.735, Approx Comp Ratio: 72cc-10.45, 75cc-10.18, 77cc-10 Effective June 15th 2026, These Oldsmobile ring grooves have been updated to the new specifications of 1.2-1.2-3mm. Parts manufactured prior to this date feature ring grooves with dimensions of 1/16-1/16-3/16.
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6003-4125 455 Big Block Oldsmobile FX Series -19cc Dish Top Oldsmobile Forged Piston Set 4.125 inch bore Pin Dia.: 0.98 6003-4125 455 Big Block Oldsmobile FX Series -19cc Dish Top Oldsmobile Forged Piston Set 4.125 inch bore Pin Dia.: 0.98
from $749.95
from $749.95
454 Big Block Oldsmobile, FX, Comp Height: 1.75, -19cc Dish Top, PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.735, Approx Comp Ratio: 72cc-10.32, 75cc-10.05, 77cc-9.88 Effective June 15th 2026, These Oldsmobile ring grooves have been updated to the new specifications of 1.2-1.2-3mm. Parts manufactured prior to this date feature ring grooves with dimensions of 1/16-1/16-3/16.
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6000-4185 455 Big Block Oldsmobile FX Series -12cc Flat Top Oldsmobile Forged Piston Set 4.185 inch bore Pin Dia.: 0.98 6000-4185 455 Big Block Oldsmobile FX Series -12cc Flat Top Oldsmobile Forged Piston Set 4.185 inch bore Pin Dia.: 0.98
from $749.95
from $749.95
468 Big Block Oldsmobile, FX, Comp Height: 1.75, -12cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.735, Approx Comp Ratio: 72cc-11.3, 75cc-10.98, 77cc-10.78 Effective June 15th 2026, These Oldsmobile ring grooves have been updated to the new specifications of 1.2-1.2-3mm. Parts manufactured prior to this date feature ring grooves with dimensions of 1/16-1/16-3/16.
Choose Options
6000-4165 455 Big Block Oldsmobile FX Series -12cc Flat Top Oldsmobile Forged Piston Set 4.165 inch bore Pin Dia.: 0.98 6000-4165 455 Big Block Oldsmobile FX Series -12cc Flat Top Oldsmobile Forged Piston Set 4.165 inch bore Pin Dia.: 0.98
from $749.95
from $749.95
463 Big Block Oldsmobile, FX, Comp Height: 1.75, -12cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.735, Approx Comp Ratio: 72cc-11.21, 75cc-10.89, 77cc-10.68 Effective June 15th 2026, These Oldsmobile ring grooves have been updated to the new specifications of 1.2-1.2-3mm. Parts manufactured prior to this date feature ring grooves with dimensions of 1/16-1/16-3/16.
Choose Options
6000-4155 455 Big Block Oldsmobile FX Series -12cc Flat Top Oldsmobile Forged Piston Set 4.155 inch bore Pin Dia.: 0.98 6000-4155 455 Big Block Oldsmobile FX Series -12cc Flat Top Oldsmobile Forged Piston Set 4.155 inch bore Pin Dia.: 0.98
from $749.95
from $749.95
461 Big Block Oldsmobile, FX, Comp Height: 1.75, -12cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.735, Approx Comp Ratio: 72cc-11.16, 75cc-10.85, 77cc-10.65 Effective June 15th 2026, These Oldsmobile ring grooves have been updated to the new specifications of 1.2-1.2-3mm. Parts manufactured prior to this date feature ring grooves with dimensions of 1/16-1/16-3/16.
Choose Options
6000-4125 455 Big Block Oldsmobile FX Series -12cc Flat Top Oldsmobile Forged Piston Set 4.125 inch bore Pin Dia.: 0.98 6000-4125 455 Big Block Oldsmobile FX Series -12cc Flat Top Oldsmobile Forged Piston Set 4.125 inch bore Pin Dia.: 0.98
from $749.95
from $749.95
454 Big Block Oldsmobile, FX, Comp Height: 1.75, -12cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.735, Approx Comp Ratio: 72cc-11.03, 75cc-10.72, 77cc-10.51 Effective June 15th 2026, These Oldsmobile ring grooves have been updated to the new specifications of 1.2-1.2-3mm. Parts manufactured prior to this date feature ring grooves with dimensions of 1/16-1/16-3/16.
Choose Options