428CJ Stock Class Valve Lift .527 ?

[SSDiv6]

Originally Posted by DeuceCoupe

We cant figure this out on Fordfe.com

NHRA Blueprint .DOC files for 1968-69-70 say the 428CJ valve lift is
.481 .490 ok
But a footnote for each year shows an OPTIONAL 428CJ cam with lift
.527 .527

I've read that Ford said the C8AX-C hydraulic cam was "optional", with lift of
.500 .500 1.73 rockers or
.509 .509 1.76 adjustable rockers
AFAIK no 428CJ ever left the factory with that cam but several sources say it was NHRA Stock legal even back to 1968.

But a cam with
.527 .527 lift in STOCK class 428CJ
Is this a typo (for all 3 years) or what?
What are stock class 428CJ's running today as max lift? .509 or .527?
thanks in advance

That camshaft is only applicable to the 1967 through 1969 Shelby Mustangs, not the regular Mustangs.

In lieu of looking at the Ford Engine Blueprint specs, look at the bottom of the list and look at the Shelby specs.

http://www.nhraracer.com/content/gen...634&zoneid=132