Probably beating a dead horse with this motor mount question
- Thread starter Paul Saulnier
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Hope this helps from Classic Olds
OK, by popular demand, here's the list of motor mount applications by frame brackets. This applies to all 1964-1990 Olds V8s (as usual, excepting the 1964 394). The use of a big block or small block does not matter. All that matters is that the rubber motor mount matches the frame mount. Also, please see the notes below the table.
A-body, G-body
1964-1968 frame mounts (all) - use P/N 2261 motor mounts
1969-1972 SBO frame mounts - use P/N 2261 motor mounts
1969-1972 BBO frame mounts - use P/N 2328 motor mounts
1973-1988 frame mounts (all) - use P/N 2328 motor mounts
B-body, C-body
1964 frame mounts (Jetstar 88 only) - mounts are unique to this year and currently not available
1965-1970 frame mounts (all) - use P/N 2262/2263 (RH/LH)
1971-1990 frame mounts (all) - use P/N 2328
X-body
1973-1974 frame mounts (all) - Use P/N 2328
1975-1979 frame mounts (all) - use P/N 2328
Notes
1. Motor mount applications ONLY apply to cars that have same year frame mounts for OLDSMOBILE motors. For example, from the mid-1970s-onward many Oldsmobiles were built with motors from other GM divisions. You must change those to the correct Oldsmobile frame mounts to use the motor mounts listed here.
2. Diesel cars have the driver's side frame mount located forward of the normal location. The motor mount was similarly moved forward using an adapter bracket that bolted between the block and the motor mount. This was done to clear the larger diesel starter. If swapping to a gas engine you can use these parts as-is or relocate the frame mount rearward to the gas engine position and delete the adapter bracket.
3. The 1964-70 B/C-body cars and the 1973-74 X-body cars used the two forward motor mount bolt holes of the three on each side of the block. All other applications (except diesel driver's side as noted above) used the rear two bolt holes on each side of the block.
OK, by popular demand, here's the list of motor mount applications by frame brackets. This applies to all 1964-1990 Olds V8s (as usual, excepting the 1964 394). The use of a big block or small block does not matter. All that matters is that the rubber motor mount matches the frame mount. Also, please see the notes below the table.
A-body, G-body
1964-1968 frame mounts (all) - use P/N 2261 motor mounts
1969-1972 SBO frame mounts - use P/N 2261 motor mounts
1969-1972 BBO frame mounts - use P/N 2328 motor mounts
1973-1988 frame mounts (all) - use P/N 2328 motor mounts
B-body, C-body
1964 frame mounts (Jetstar 88 only) - mounts are unique to this year and currently not available
1965-1970 frame mounts (all) - use P/N 2262/2263 (RH/LH)
1971-1990 frame mounts (all) - use P/N 2328
X-body
1973-1974 frame mounts (all) - Use P/N 2328
1975-1979 frame mounts (all) - use P/N 2328
Notes
1. Motor mount applications ONLY apply to cars that have same year frame mounts for OLDSMOBILE motors. For example, from the mid-1970s-onward many Oldsmobiles were built with motors from other GM divisions. You must change those to the correct Oldsmobile frame mounts to use the motor mounts listed here.
2. Diesel cars have the driver's side frame mount located forward of the normal location. The motor mount was similarly moved forward using an adapter bracket that bolted between the block and the motor mount. This was done to clear the larger diesel starter. If swapping to a gas engine you can use these parts as-is or relocate the frame mount rearward to the gas engine position and delete the adapter bracket.
3. The 1964-70 B/C-body cars and the 1973-74 X-body cars used the two forward motor mount bolt holes of the three on each side of the block. All other applications (except diesel driver's side as noted above) used the rear two bolt holes on each side of the block.
I tried fitting 2328 style factory mounts on 1970 350 mounts, they fit about the same way. I know people have had issues with the holes being slightly off on the anchor mounts but it looks like those won't line up, no matter what.
Your frame pads look correct.They do need to be in the correct position on the frame.If your not sure google some pics to make sure they are.Also some of the cheap Chinese motor mounts are slightly off.Maybe take yours and go to a different parts store and do a comparison or go to the junkyard and get some from a 307 out of a Cutlass.As long as there is no visual damage or cracks they should be fine.
I think I may have found some mounts on rock auto the walls on the mounts look higher in the photos. Idk I screwed up and can not find my sbo right side frame pad. The minute I pay someone for one I'll find it but does anyone have one for sale before I post a wanted ad?
Be careful comparing to a pic from the for sale catelog images on rockauto. Sometimes their images are stock photos of that TYPE of part, but not necessarily that EXACT brand or application.
Update the second pair I ordered are going to work. The first set that didn't work were by DEA part #A2328 the second set were by SKP part#SKP2328. Hopefully this will help someone out down the road
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