Free Shipping on Piston Orders Over $500.00! Online Purchases Only. Limited Time Offer. Continental U.S. Only.

Pontiac GTO

Pontiac Late

STEP 6: Top - Comp. Ratio Show all STEP 6: Top - Comp. Ratio
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
454 Pontiac Late , FX, Comp Height: 1.285, -18cc Dish Top, PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-11.47, 87cc-9.18, 124cc-7.17 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
454 Pontiac Late , FX, Comp Height: 1.285, -18cc Dish Top, PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-11.47, 87cc-9.18, 124cc-7.17 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
453 Pontiac Late , FX, Comp Height: 1.285, -18cc Dish Top, PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-11.47, 87cc-9.16, 124cc-7.15 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
453 Pontiac Late , FX, Comp Height: 1.285, -18cc Dish Top, PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-11.47, 87cc-9.16, 124cc-7.15 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
469 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-13.32, 87cc-10.32, 124cc-7.86 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
469 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-13.32, 87cc-10.32, 124cc-7.86 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
467 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-13.26, 87cc-10.3, 124cc-7.84 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
467 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-13.26, 87cc-10.3, 124cc-7.84 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
462 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-13.16, 87cc-10.2, 124cc-7.76 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
462 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-13.16, 87cc-10.2, 124cc-7.76 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
460 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-13.11, 87cc-10.16, 124cc-7.74 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
460 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-13.11, 87cc-10.16, 124cc-7.74 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
454 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-12.97, 87cc-10.05, 124cc-7.65 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
454 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-12.97, 87cc-10.05, 124cc-7.65 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
453 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-12.95, 87cc-10.03, 124cc-7.64 Effective June 15th 2026, These Pontiac 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
Regular price from $749.95
Sale price from $749.95
Regular price
Unit price
per 
453 Pontiac Late , FX, Comp Height: 1.285, -7cc Flat Top , PIN: .99", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.250", ROD: 6.8, Approx Comp Ratio: 62cc-12.95, 87cc-10.03, 124cc-7.64 Effective June 15th 2026, These Pontiac 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