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Old 06-08-2016, 05:01 PM
SD455DJ SD455DJ is offline
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Join Date: Aug 2009
Location: Grand Rapids, MI
Posts: 3,255
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Quote:
Originally Posted by blubomber View Post
'69 428 HO B body cars had a PC coded TH 400. The std unit for all others was coded PA or PB.

I do not know the exact differences but I think the HO PC units had a stronger sprag, might have had an extra clutch pack, probably had a different governor setting and different valve body shift points.

Std rear end for a 428 HO a/t B body was the 3.42:1. For some reason they listed a 3.23 for m/t cars but since they didn't make any I am not sure how accurate that is although it is probably applicable to GP's.

Dennis/SD455: PM me or better yet call me at 571 265 5950. I am leaving work in about 30 minutes and will be on my phone after that.
Blubomber, I'll pm you later, busy with running around right now. Dennis