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Valley Girdle Pro, Main Girdles, Ford 429-460, w/Chrome Moly
Valley Girdle Pro Valley Girdles
Tests have proven that engine blocks twist under load with each piston fire. This twisting causes bore distortion, cylinder wall friction and can cause block failure. The Valley Girdle Pro is an affordable solution that adds strength to the top end of the engine block and dampens harmonics by stabilizing the engine block to prevent block twist. Made in the U.S.A.