Includes solid frame mount, engine mount and hardware to install a 1961-79 Pontiac 326-455 Engine in 1975-81 Firebird/Trans Ams. Replaces factory mounts plus extra bolt holes will adapt a 1961-69 2 bolt block to use in 1975-81 Firebird sub frames. These may require some modification or slight shifting of frame mounts for proper alignment because of "tweaks" in the frame over years of use, damage, etc. Will not work on Oldsmobile or Chevrolet engines. Engine mounts designed/made in the USA by Butler Performance. Solid engine mounts improve responsiveness and help prevent engine movement, which can help in tight packaging situations (large header primaries, turbos, etc). Solid engine mounts work best in racing applications and may contribute to increased noise, vibration and harshness.

Product includes: Pair of engine & frame mounts with hardware
Part# BPI-F10774-F61287