#30

11-25-2016, 04:29 PM

unruhjonny unruhjonny is offline

Ultimate Warrior

Join Date: May 2004

Location: Calgary, AB, Canada

Posts: 6,835

Quote:

Originally Posted by Blued and Painted

12/12.. If you were a mechanic, the good old days. ...

So then if I use this post;

Quote:

Originally Posted by Kenth

As long as Pontiac needed Service Replacement blocks for 1970 RA-engines they they drilled and tapped later than 1970 production blocks for use of 4-bolt mains. ...

... that would logically mean that service replacement 1970 blocks would have only been needed through to early 1972 at the latest - right?

Just curious.

__________________
1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.

1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)

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