Gold Founding Member
Join Date: Feb 2000
Location: Marietta, GA 30066
Re: Trying to install ZZ502 having problems.
On '66 and '67 Chevelles the BB and SB frame mounts are dimensionally the SAME!
I've seen them both types (originals) compared side by side at Sundells. The BB frame mounts are just re-enforced with gussets on the underside.
I've installed NUMEROUS small and big block engines in my '67 using the original factory 283 frame mounts and the corresponding small block engine mounts..no problems!!
In fact, using a Moroso tall & narrow solid mount on the driver side.
I think you have the wrong Energy Suspension poly mounts...
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