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Forum: 78 and Newer G-body Pontiac TECH 12-09-2017, 10:00 PM
Replies: 13
Views: 6,957
Posted By ponyakr
"...the 428 will bolt in to a G body frame with...

"...the 428 will bolt in to a G body frame with the factory 301 mounts..."

Not without adapters. The 428's do not have motor mount holes in the correct locations.
...
Forum: 78 and Newer G-body Pontiac TECH 12-08-2017, 06:48 PM
Replies: 13
Views: 6,957
Posted By ponyakr
Pump Gas 455

Don't have a clue what your budget is. But I have a pump gas 455, that I had built by a member here. Was gonna do some bracket racing with it. But, the track closed & I sold the roller.

It has...
Forum: 78 and Newer G-body Pontiac TECH 12-08-2017, 12:40 AM
Replies: 13
Views: 6,957
Posted By ponyakr
"...The car currently has the original 7.5 posi...

"...The car currently has the original 7.5 posi rear..."

If you plan to keep that rear, I wouldn't go with any more motor than a low compression 400. I'd go with 6X, 5C, or '74 model #46 heads,...
Forum: 78 and Newer G-body Pontiac TECH 12-06-2017, 01:56 PM
Replies: 13
Views: 6,957
Posted By ponyakr
Yeah, as stated, there are LOTS of things to...

Yeah, as stated, there are LOTS of things to consider.

If you just want decent power to burn some rubber & not wipe out the Sag trans, then a low compression 400 is probably all you can stand.
...
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