The ultimate in aftermarket 1975-81 Firebird Pontiac Engine frame mounts. Milled from 6061 billet aluminum. Features custom molded poly inserts with billet sleeves. Rated to 600+HP Improved design is much stronger and stable than factory motor mounts. Prevents excess engine movement and damage to other vehicle components. Made of HYPER-FLEX performance polyurethane. Resistant to under vehicle fluids: oils, coolants, road contaminants. Will not work on Oldsmobile or Chevrolet engines. Engine mounts designed/made in the USA by Butler Performance. **Original engine height will not be altered with these mounts** If using headers, ceramic coated headers are highly recommended AND/OR a heat shield or header wrap to keep heat away from the Poly mounts as excessive heat may cause the poly to melt or deteriorate.

Product includes: Pair of engine mounts