Quote:
Originally Posted by steve25
For those who may be curious I just dug out a near virgin set ( like 15'000 miles ) of 6X-4 heads and here's the spring spec.
Intake seat pressure = 115
Exh seat= 110
Intake coil bind=.490"
Exh coil bind= .520"
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I noticed on the question and answer section on the cam sales page that someone asked about using the cam with those heads. The answer from Lunati was they needed to change the springs and gave a part number.
These ram air heads are so different than original D ports though. I don't think much cross references.
I specifically asked the Lunati tech on the phone about it and he said there wouldn't be a problem.
I'm hearing enough positive reports to try them out.