What K Member and Transmission Mount ?
Here's the photos Jim and like I said, I bought this running 74 Duster drag race car that had the 400 in it.
Engine was sitting and looking correctly positioned in the engine bay.
The motor mounts have multiple part numbers depending on what the application was and mine have the white paint designation on them which corresponds with part numbers 3642814 and 3642815.
However after digging a little further it appears Mopar boxed these two part numbers up and sold it as a kit to install a big block on a small block V8 spool K-member as Mopar Performance kit # P4120757
"Can be used to swap a big block engine where a small block was used in vehicles up to 1978 A, B, C-body"
However they are nothing more than a factory mounts for a 1973 1974 1975 1976 Dodge and Plymouth B & C-body vehicles with 400-440 engines.
Just happened to find a seller on eBay that has several new Mopar kits available for $199.95
1973 1974 1975 1976-78 NOS MoPar MOTOR MOUNTS B,RB KIT
Or if you want to save a $100 you can buy these
NOS Mopar Motor Mounts 1973-76 B & C body big block spool type 3642814-3642815
Then if all else fails you can probably find some cheap Chinese ones from RockAuto or some other Asian quality retailer, but why would you not want OEM quality Mopar mounts?
Looks like the mystery of installing a big block in A-body is debunked if you have a V8 spool mount K-member.
Hope the photos and information will provide some knowledge to help more of you get a big block in your A-body
a little cheaper and easier.
Tom
Here's the photos Jim and like I said, I bought this running 74 Duster drag race car that had the 400 in it.
Engine was sitting and looking correctly positioned in the engine bay.
The motor mounts have multiple part numbers depending on what the application was and mine have the white paint designation on them which corresponds with part numbers 3642814 and 3642815.
However after digging a little further it appears Mopar boxed these two part numbers up and sold it as a kit to install a big block on a small block V8 spool K-member as Mopar Performance kit # P4120757
"Can be used to swap a big block engine where a small block was used in vehicles up to 1978 A, B, C-body"
However they are nothing more than a factory mounts for a 1973 1974 1975 1976 Dodge and Plymouth B & C-body vehicles with 400-440 engines.
Just happened to find a seller on eBay that has several new Mopar kits available for $199.95
1973 1974 1975 1976-78 NOS MoPar MOTOR MOUNTS B,RB KIT
Or if you want to save a $100 you can buy these
NOS Mopar Motor Mounts 1973-76 B & C body big block spool type 3642814-3642815
Then if all else fails you can probably find some cheap Chinese ones from RockAuto or some other Asian quality retailer, but why would you not want OEM quality Mopar mounts?
Looks like the mystery of installing a big block in A-body is debunked if you have a V8 spool mount K-member.
Hope the photos and information will provide some knowledge to help more of you get a big block in your A-body
a little cheaper and easier.
Tom