Matt69olds
Full Access Member
- Joined
- Jan 8, 2018
- Posts
- 2,451
- Reaction score
- 3,819
- Location
- Central Indiana
- First Name
- Matt
- Truck Year
- 81
- Truck Model
- GMC 1/2 ton
- Engine Size
- 455 Olds
Here is a link explaining the differences in early A body Olds frame mounts. While technically there IS a difference in small/big block mounts, in reality as long as the engine/frame mounts match, the are functionally the same. Meaning if you have a 68 Olds with a small block, use factory replacement small block mounts on the big block.
https://classicoldsmobile.com/forums/big-blocks-2/engine-mounts-400ci-what-can-i-use-87555/
https://classicoldsmobile.com/forums/big-blocks-2/engine-mounts-400ci-what-can-i-use-87555/