Quote:
Originally Posted by Twistedpinion
Johnny,
This is a 557 block. From what I've been reading though, it would take a good amount more power than I'll be making to split it. As you said, you've been racing yours with out incident for some time and I know of a few others that are making similar horsepower to my goal and have been for years.
I do also have my W72 'XX' block that is numbers matching for the car, but I was planning on tucking that one away in case I ever wanted to do a factory correct build. Thoughts?
Thanks again
-Sean
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-Sean,
If I knew then what I know now, that 557 block wouldn't be in my car and it will be out in a couple of weeks for the new 455. I'm going to tear it down and inspect it real hard. If it checks out, that motor will then become the spare or will go in the red 81 as a street driver.
For peace of mind, I wouldn't do it. 
__________________
 Johnny US Army Retired
1978 T/A 463 Pontiac, KRE 74cc 300CFM D-ports, Howard's custom SFT, Nash Intake,QFT 950 E85 carb, TCI TH-350, 4200 converter 3.73 12 bolt [email protected]
1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car.
1972 LeMans 350 Pontiac H/S Drags project
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