Aluminium block shown. And a subject brought up by the OP..... No cooling holes, drilling is required to match your heads water holes.
And stated.... "Lifter bores are deeper to allow the use of standard type "corporate" lifters."
Do your homework on that subject, does that mean a 'regular' Pontiac lifter will not work !
It is my understanding the situaion has been corrected. But on very early iron blocks the lifter bore pads would not allow the use of standard Crower Pontiac solid roller lifters. Being shorter than a Corporate lifter the tie bar made contact with the lifter bore pad. In my case we machined the block for the necessary clearance.
.
__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE
Last edited by Steve C.; 01-23-2020 at 04:58 PM.
|