Pontiac - Street No question too basic here!

          
 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1  
Old 02-11-2025, 05:33 PM
kpbrown31 kpbrown31 is offline
Senior Member
 
Join Date: Feb 2023
Location: NE Kansas
Posts: 215
Default My 455 block dilemma

So I buy a complete (but currently disassembled) 455 last summer that was bored .030, heads had work done, new pistons, rings, cam, lifters, studs, etc. It was supposedly a complete build that never was assembled due to the guy developing health troubles.

I had took the block in to measure the main bearing alignment because the motor had been studded and I was unsure if they had align honed it. Trouble is, the machine shop just called on the block and said the caps appear to be a long ways off, and the parting lines don't even fully match on 2 caps. He said it's almost as if they are not the same caps that came on the motor. He made it seem like it would take extensive work to get them to line up right. I always thought you could still line bore and then hone most alignment issues out of them, but maybe this is way off.

Is a block without caps worth much to anyone? I'm in a predicament now as to whether I find a different block and still try to proceed with the 455 project or just sell the parts I have to recoup cost and build one of my 400's up.

The rotating assembly is balanced and I just put more money in the heads having a better valve job done, new guides and oil seals installed.

 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:39 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017