1964 Chevelle
1965 Chevelle
1966 Chevelle
1967 Chevelle
1968 Chevelle
1969 Chevelle
1970 Chevelle
1971 Chevelle
1972 Chevelle
Engine Mounts (Group 0.027) and 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 |
| 3839620 ~ 64-72 230/250 |
Group 0.029 - Frame Stands (Bracket Assembly) |
| 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 |
| 3866249 L.H./3866250 R.H. ~ 64-72 230/250(1) |
| 3839621 L.H./3839622 R.H. ~ 64-72 320/250(1) |
(1) The 6-cylinder engine frame stands (bracket assembly) consisted of two pieces.
1964-1967 Frame Mounts
The Chevrolet Parts & Accessories catalog suggests using the 396
frame stands and matching engine mounts when replacing either side
in a 1964-1967 283/327 Chevelle as the earlier 283/327 engine
mounts tended to break the driver's side mount due to engine torque.
The suggested replacement mount and stand incorporated a 'locking'
design which would keep the engine mount attached to the frame stand
in the event of engine mount failure.
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 'CABLE UNIT, engine stop lift' 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. Although shown here on a 1969 396 engine these are only listed in GM's Parts and Accessories Catalog for 1968 and 1969 Chevy passenger, Chevy II, and Camaro; they are not listed for Chevelles since 1968 saw the introduction of the throttle cable linkage in lieu of a solid rod used up through 1967. The car's owner just wanted to add a bit of detail for some reason.
Many 1964-1967 engine mounts (both small block and big block) were eventually replaced with engine mounts featuring a lock tab that 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.
© ChevelleWorld
