Pontiac Late

-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 11.36 to 1
87 8.83 to 1
124 6.75 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 11.44 to 1
87 8.91 to 1
124 6.81 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 11.55 to 1
87 8.97 to 1
124 6.86 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 11.57 to 1
87 8.99 to 1
124 6.88 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 11.68 to 1
87 9.08 to 1
124 6.95 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 11.74 to 1
87 9.12 to 1
124 6.97 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 11.82 to 1
87 9.2 to 1
124 7.03 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 12.84 to 1
87 9.95 to 1
124 7.58 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 12.87 to 1
87 9.97 to 1
124 7.59 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 12.95 to 1
87 10.03 to 1
124 7.64 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 12.97 to 1
87 10.05 to 1
124 7.65 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13 to 1
87 10.08 to 1
124 7.68 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.05 to 1
87 10.12 to 1
124 7.7 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.11 to 1
87 10.16 to 1
124 7.74 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.13 to 1
87 10.2 to 1
124 7.76 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.16 to 1
87 10.2 to 1
124 7.76 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.18 to 1
87 10.22 to 1
124 7.78 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.26 to 1
87 10.3 to 1
124 7.84 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.32 to 1
87 10.31 to 1
124 7.84 to 1
(1)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.32 to 1
87 10.32 to 1
124 7.86 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.34 to 1
87 10.33 to 1
124 7.86 to 1
(1)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.45 to 1
87 10.41 to 1
124 7.93 to 1
(1)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.53 to 1
87 10.47 to 1
124 7.97 to 1
(1)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.61 to 1
87 10.55 to 1
124 8.03 to 1
(1)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.68 to 1
87 10.6 to 1
124 8.06 to 1
(1)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.82 to 1
87 10.69 to 1
124 8.14 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 13.97 to 1
87 10.83 to 1
124 8.23 to 1
(2)
-7cc Flat Top Pontiac Late
Chamber Comp Ratio
62 14.03 to 1
87 10.86 to 1
124 8.25 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.37 to 1
87 9.09 to 1
124 7.1 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.38 to 1
87 9.11 to 1
124 7.11 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.47 to 1
87 9.16 to 1
124 7.15 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.47 to 1
87 9.18 to 1
124 7.17 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.52 to 1
87 9.2 to 1
124 7.19 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.54 to 1
87 9.24 to 1
124 7.22 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.61 to 1
87 9.27 to 1
124 7.24 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.64 to 1
87 9.3 to 1
124 7.27 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.64 to 1
87 9.31 to 1
124 7.27 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.68 to 1
87 9.33 to 1
124 7.29 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.75 to 1
87 9.39 to 1
124 7.34 to 1
(2)
-18cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.8 to 1
87 9.42 to 1
124 7.36 to 1
(2)
-22cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.31 to 1
87 9.13 to 1
124 7.18 to 1
(1)
-22cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.34 to 1
87 9.14 to 1
124 7.2 to 1
(1)
-22cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.43 to 1
87 9.22 to 1
124 7.26 to 1
(1)
-22cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.49 to 1
87 9.28 to 1
124 7.3 to 1
(1)
-22cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.58 to 1
87 9.33 to 1
124 7.34 to 1
(1)
-22cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.63 to 1
87 9.39 to 1
124 7.38 to 1
(1)
-24cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.51 to 1
87 9.33 to 1
124 7.36 to 1
(2)
-24cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.65 to 1
87 9.44 to 1
124 7.45 to 1
(2)
-24cc Dish Top Pontiac Late
Chamber Comp Ratio
62 11.69 to 1
87 9.47 to 1
124 7.47 to 1
(2)

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	11.36 to 1
87	8.83 to 1
124	6.75 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	11.44 to 1
87	8.91 to 1
124	6.81 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	11.55 to 1
87	8.97 to 1
124	6.86 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	11.57 to 1
87	8.99 to 1
124	6.88 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	11.68 to 1
87	9.08 to 1
124	6.95 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	11.74 to 1
87	9.12 to 1
124	6.97 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	11.82 to 1
87	9.2 to 1
124	7.03 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	12.84 to 1
87	9.95 to 1
124	7.58 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	12.87 to 1
87	9.97 to 1
124	7.59 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	12.95 to 1
87	10.03 to 1
124	7.64 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	12.97 to 1
87	10.05 to 1
124	7.65 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13 to 1
87	10.08 to 1
124	7.68 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.05 to 1
87	10.12 to 1
124	7.7 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.11 to 1
87	10.16 to 1
124	7.74 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.13 to 1
87	10.2 to 1
124	7.76 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.16 to 1
87	10.2 to 1
124	7.76 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.18 to 1
87	10.22 to 1
124	7.78 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.26 to 1
87	10.3 to 1
124	7.84 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.32 to 1
87	10.31 to 1
124	7.84 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.32 to 1
87	10.32 to 1
124	7.86 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.34 to 1
87	10.33 to 1
124	7.86 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.45 to 1
87	10.41 to 1
124	7.93 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.53 to 1
87	10.47 to 1
124	7.97 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.61 to 1
87	10.55 to 1
124	8.03 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.68 to 1
87	10.6 to 1
124	8.06 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.82 to 1
87	10.69 to 1
124	8.14 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	13.97 to 1
87	10.83 to 1
124	8.23 to 1

-7cc Flat Top Pontiac Late
Chamber	Comp Ratio
62	14.03 to 1
87	10.86 to 1
124	8.25 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.37 to 1
87	9.09 to 1
124	7.1 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.38 to 1
87	9.11 to 1
124	7.11 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.47 to 1
87	9.16 to 1
124	7.15 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.47 to 1
87	9.18 to 1
124	7.17 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.52 to 1
87	9.2 to 1
124	7.19 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.54 to 1
87	9.24 to 1
124	7.22 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.61 to 1
87	9.27 to 1
124	7.24 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.64 to 1
87	9.3 to 1
124	7.27 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.64 to 1
87	9.31 to 1
124	7.27 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.68 to 1
87	9.33 to 1
124	7.29 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.75 to 1
87	9.39 to 1
124	7.34 to 1

-18cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.8 to 1
87	9.42 to 1
124	7.36 to 1

-22cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.31 to 1
87	9.13 to 1
124	7.18 to 1

-22cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.34 to 1
87	9.14 to 1
124	7.2 to 1

-22cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.43 to 1
87	9.22 to 1
124	7.26 to 1

-22cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.49 to 1
87	9.28 to 1
124	7.3 to 1

-22cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.58 to 1
87	9.33 to 1
124	7.34 to 1

-22cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.63 to 1
87	9.39 to 1
124	7.38 to 1

-24cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.51 to 1
87	9.33 to 1
124	7.36 to 1

-24cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.65 to 1
87	9.44 to 1
124	7.45 to 1

-24cc Dish Top Pontiac Late
Chamber	Comp Ratio
62	11.69 to 1
87	9.47 to 1
124	7.47 to 1

from $749.95

458 Pontiac Late , FX, Comp Height: 1.48, -7cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.210", ROD: 6.625, Approx Comp Ratio: 62cc-13.05, 87cc-10.12, 124cc-7.7 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.

6120-4160 400 - 4.210 Stroke Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.160 inch bore Pin Dia.: 0.98

from $749.95

6120-4150 455 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.150 inch bore Pin Dia.: 0.98

from $749.95

456 Pontiac Late , FX, Comp Height: 1.48, -7cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.210", ROD: 6.625, Approx Comp Ratio: 62cc-13, 87cc-10.08, 124cc-7.68 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.

6120-4150 400 - 4.210 Stroke Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.150 inch bore Pin Dia.: 0.98

from $749.95

6120-4125 400 - 4.210 Stroke Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.125 inch bore Pin Dia.: 0.98

from $749.95

450 Pontiac Late , FX, Comp Height: 1.48, -7cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.210", ROD: 6.625, Approx Comp Ratio: 62cc-12.87, 87cc-9.97, 124cc-7.59 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.

6120-4125 455 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.125 inch bore Pin Dia.: 0.98

from $749.95

6120-4120 455 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.120 inch bore Pin Dia.: 0.98

from $749.95

449 Pontiac Late , FX, Comp Height: 1.48, -7cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 4.210", ROD: 6.625, Approx Comp Ratio: 62cc-12.84, 87cc-9.95, 124cc-7.58 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.

6120-4120 400 - 4.210 Stroke Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.120 inch bore Pin Dia.: 0.98

from $749.95

6100-4180 400 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.180 inch bore Pin Dia.: 0.98

from $749.95

412 Pontiac Late , FX, Comp Height: 1.71, -7cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.750", ROD: 6.625, Approx Comp Ratio: 62cc-11.82, 87cc-9.2, 124cc-7.03 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.

6100-4180 389 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.180 inch bore Pin Dia.: 0.98

from $749.95

6100-4160 400 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.160 inch bore Pin Dia.: 0.98

from $749.95

408 Pontiac Late , FX, Comp Height: 1.71, -7cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.750", ROD: 6.625, Approx Comp Ratio: 62cc-11.74, 87cc-9.12, 124cc-6.97 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.

6100-4160 389 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.160 inch bore Pin Dia.: 0.98

from $749.95

6100-4150 400 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.150 inch bore Pin Dia.: 0.98

from $749.95

406 Pontiac Late , FX, Comp Height: 1.71, -7cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.750", ROD: 6.625, Approx Comp Ratio: 62cc-11.68, 87cc-9.08, 124cc-6.95 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.

6100-4150 389 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.150 inch bore Pin Dia.: 0.98

from $749.95

6100-4125 400 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.125 inch bore Pin Dia.: 0.98

from $749.95

401 Pontiac Late , FX, Comp Height: 1.71, -7cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.750", ROD: 6.625, Approx Comp Ratio: 62cc-11.57, 87cc-8.99, 124cc-6.88 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.

6100-4125 389 Pontiac Late FX Series -7cc Flat Top Pontiac Late Forged Piston Set 4.125 inch bore Pin Dia.: 0.98

from $749.95

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Pontiac Late

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

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