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247 Buick V6 & Grand National, FX, Comp Height: 1.354, -15cc Dish Top, PIN: .927", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 6.35, 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: 1.354, -15cc Dish Top, PIN: .927", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 6.35, 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: 1.354, -15cc Dish Top, PIN: .927", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 6.35, 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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from $629.95
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251 Buick V6 & Grand National, FX, Comp Height: 1.354, -15cc Dish Top, PIN: .927", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 6.35, 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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from $629.95
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252 Buick V6 & Grand National, FX, Comp Height: 1.354, -15cc Dish Top, PIN: .927", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 6.35, 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: 1.354, -29cc Dish Top, PIN: .927", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 6.35, 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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248 Buick V6 & Grand National, FX, Comp Height: 1.354, -29cc Dish Top, PIN: .927", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 6.35, Approx Comp Ratio: 41cc-9.74, 46cc-9.22, 55cc-8.41 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: 1.354, -29cc Dish Top, PIN: .927", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 6.35, Approx Comp Ratio: 41cc-9.77, 46cc-9.25, 55cc-8.44 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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from $629.95
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251 Buick V6 & Grand National, FX, Comp Height: 1.354, -29cc Dish Top, PIN: .927", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 6.35, Approx Comp Ratio: 41cc-9.84, 46cc-9.3, 55cc-8.48 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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from $629.95
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252 Buick V6 & Grand National, FX, Comp Height: 1.354, -29cc Dish Top, PIN: .927", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.625", ROD: 6.35, Approx Comp Ratio: 41cc-9.88, 46cc-9.33, 55cc-8.51 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, FX, Comp Height: 1.205, -6cc Flat Top , PIN: .905", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.64, Approx Comp Ratio: 56cc-10.08, 59cc-9.71, 62cc-9.37 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, FX, Comp Height: 1.205, -6cc Flat Top , PIN: .905", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.64, Approx Comp Ratio: 56cc-10.16, 59cc-9.79, 62cc-9.42 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, FX, Comp Height: 1.205, -6cc Flat Top , PIN: .905", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.64, Approx Comp Ratio: 56cc-10.2, 59cc-9.82, 62cc-9.46 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, FX, Comp Height: 1.205, -6cc Flat Top , PIN: .905", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.64, Approx Comp Ratio: 56cc-10.24, 59cc-9.84, 62cc-9.5 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, FX, Comp Height: 1.205, -6cc Flat Top , PIN: .905", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.64, Approx Comp Ratio: 56cc-10.25, 59cc-9.88, 62cc-9.53 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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from $629.95
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231 Buick V6, FX, Comp Height: 1.205, -15cc Dish Top, PIN: .905", Full-Floating or Press Fit, Ring Groove: 1.2/1.2/3MM, Stroke: 3.400", ROD: 5.64, Approx Comp Ratio: 56cc-9.04, 59cc-8.75, 62cc-8.48 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.