Old 05-25-2023, 09:59 AM
tekuhn tekuhn is offline
Senior Chief
Join Date: Sep 2009
Location: East Texas
Posts: 412
Default 400 vs. 455 A-body Engine Mounts

I'm curious if anyone is familiar enough with the two different mount designs to comment on whether one is stronger than the other? There must be some reason why they chose to give the 455 a different mount when the 400 mount would bolt to the engine fine.

For my custom project, I'm using a dual pattern 5-bolt block, so I can use either mount and might use the 455 mount if it's indeed stronger.

Thanks in advance for any information!

Hoping to finish a project while I'm still able to push the clutch in....

1963 Tempest Convertible (195-1bbl, 3-speed transaxle. 428 RAIV, 5-speed, IRS planned) Pictures

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