"The average install height was 1.785 on this head"
That's a good tid bit of information. Again, it could be presumed the springs are at 1.800" according to what you read regarding the Speedmaster head.
A similar situation with the Edelbrock head that is advertised with a 1.800" installed height. But when measured by some it will vary.
That and even springs in the same batch can vary slightly in height.
An installed height of +/- 0.020" is acceptable depending on the source.
.
__________________
'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
|