Buick GN

Buick V6 & Grand National

Piston Top Aprox. Comp. Ratio Show all Piston Top Aprox. Comp. Ratio
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231 Buick V6 & Grand National, FX, Comp Height: 1.85, -15cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.96, Approx Comp Ratio: 41cc-10.95, 46cc-10.21, 55cc-9.14 NOTE: Effective April 17, 2025, all Buick 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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233 Buick V6 & Grand National, FX, Comp Height: 1.85, -15cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.96, Approx Comp Ratio: 41cc-11.03, 46cc-10.29, 55cc-9.21 NOTE: Effective April 17, 2025, all Buick 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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234 Buick V6 & Grand National, FX, Comp Height: 1.85, -15cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.96, Approx Comp Ratio: 41cc-11.05, 46cc-10.33, 55cc-9.25 NOTE: Effective April 17, 2025, all Buick 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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235 Buick V6 & Grand National, FX, Comp Height: 1.85, -15cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.96, Approx Comp Ratio: 41cc-11.09, 46cc-10.37, 55cc-9.28 NOTE: Effective April 17, 2025, all Buick 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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236 Buick V6 & Grand National, FX, Comp Height: 1.85, -15cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.96, Approx Comp Ratio: 41cc-11.14, 46cc-10.39, 55cc-9.32 NOTE: Effective April 17, 2025, all Buick 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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231 Buick V6 & Grand National, FX, Comp Height: 1.85, -29cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.96, Approx Comp Ratio: 41cc-9.14, 46cc-8.65, 55cc-7.9 NOTE: Effective April 17, 2025, all Buick 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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233 Buick V6 & Grand National, FX, Comp Height: 1.85, -29cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.96, Approx Comp Ratio: 41cc-9.21, 46cc-8.72, 55cc-7.96 NOTE: Effective April 17, 2025, all Buick 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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234 Buick V6 & Grand National, FX, Comp Height: 1.85, -29cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.96, Approx Comp Ratio: 41cc-9.25, 46cc-8.75, 55cc-7.99 NOTE: Effective April 17, 2025, all Buick 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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235 Buick V6 & Grand National, FX, Comp Height: 1.85, -29cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.96, Approx Comp Ratio: 41cc-9.28, 46cc-8.77, 55cc-8.01 NOTE: Effective April 17, 2025, all Buick 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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236 Buick V6 & Grand National, FX, Comp Height: 1.85, -29cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.96, Approx Comp Ratio: 41cc-9.32, 46cc-8.8, 55cc-8.04 NOTE: Effective April 17, 2025, all Buick 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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247 Buick V6 & Grand National, FX, Comp Height: 1.737, -15cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 5.97, Approx Comp Ratio: 41cc-11.64, 46cc-10.85, 55cc-9.7 NOTE: Effective April 17, 2025, all Buick 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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248 Buick V6 & Grand National, FX, Comp Height: 1.737, -15cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 5.97, Approx Comp Ratio: 41cc-11.68, 46cc-10.89, 55cc-9.74 NOTE: Effective April 17, 2025, all Buick 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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249 Buick V6 & Grand National, FX, Comp Height: 1.737, -15cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 5.97, Approx Comp Ratio: 41cc-11.7, 46cc-10.93, 55cc-9.77 NOTE: Effective April 17, 2025, all Buick 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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251 Buick V6 & Grand National, FX, Comp Height: 1.737, -15cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 5.97, Approx Comp Ratio: 41cc-11.78, 46cc-11.01, 55cc-9.84 NOTE: Effective April 17, 2025, all Buick 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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252 Buick V6 & Grand National, FX, Comp Height: 1.737, -15cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 5.97, Approx Comp Ratio: 41cc-11.82, 46cc-11.02, 55cc-9.88 NOTE: Effective April 17, 2025, all Buick 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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247 Buick V6 & Grand National, FX, Comp Height: 1.737, -29cc Dish Top, PIN: .94", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 5.97, Approx Comp Ratio: 41cc-9.7, 46cc-9.18, 55cc-8.38 NOTE: Effective April 17, 2025, all Buick 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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