Engine Mounts (Group 0.027) & Frame Stands (Group 0.029)
Various engine mounts (those that bolt to the engine itself) and frame stands (on the front crossmember) were used throughout the years. Only those for Chevelles are listed here and only service replacement units are listed. Service replacement units may vary from original equipment. For original equipment part numbers it is suggested you pick up a copy of your specific year factory assembly instruction manual.
|Group 0.027 - Mounting Assembly|
|3990914 ~ 1964-1967 283/327 - Type A
(Recommended replacement with locking tab and must be used with 3872815/816 frame stands)
|3990914 ~ 1968-1972 307|
|3990918 ~ 1970-1972 350|
|3990916 ~ 1966-1967 396 (Type C)|
|3990918 ~ 1968-1972 396/402/454|
|Group 0.028 - Frame Stands|
|3840755 L.H./3840756 R.H. ~ 1964-1967 283/327|
|3980707 L.H./3980708 R.H. ~ 1968-1972 307|
|3980711 L.H./3980712 R.H. ~ 1968 327, 1968-1972 350|
|3872815 L.H./3972816 R.H. ~ 1965-1967 396|
|3980711 L.H./3980712 R.H. ~ 1968-1972 396/402/454|
1964-1967 Frame Mounts
1968-1972 Frame Mounts
Early Chevrolet engine mounts had a tendency to separate the metal plate from the rubber. This could, and sometime did, result in the driver side of the engine lifting due to engine torque and jamming the accelerator in the open position.
This 'retention kit' was a temporary fix for the problem until a sufficient number of engine and frame mount kits could be distributed to dealers to help solve the issue. Many early type engine mounts (both small block and big block) were eventually replaced with engine mounts featuring a lock tab tat would restrain a broken mount keeping the engine from lifting off the frame stand.
Comparison of non-locking engine mount (top) and later locking engine mount (bottom). On some models of Chevelles the frame stand would also need to be change to accommodate the newer locking engine mount.