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MR-1 Pontiac Block Strengthened Lifter Gallery

This is the area of a Pontiac block that has been problematic for years. Not so with the added material manufactured into the MR-1 and MR-1A Pontiac blocks. With the 1″ nominal thickness high strength gray iron galley and three reinforcing ribs in this area, no additional reinforcement is required.

This gallery contains 3 photos.