pushrod length?
pushrod length? i am installing a lunati T1 cam 221/221 .558/.558 in my car, i was wanting to know if i would need to use 7.375 pushrods, or if i would need to use 7.400 pushrods. stock heads and rockers. any info is appreciated.
Last edited by scarbrow; Feb 8, 2006 at 11:03 PM.
TECH Senior Member
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
7.40's will work.
Measure your cam base circle.
(Stock Base C) - (T1 Base C) = 1.55 - (T1 Base C) = (0.XX)
(0.XX) / 2 = (length of increase in p-rod needed) = (0.YY)
If that figure (0.YY) is more than .025 but <.050, then you'll need 7.425
If less than .025, then 7.40
Measure your cam base circle.
(Stock Base C) - (T1 Base C) = 1.55 - (T1 Base C) = (0.XX)
(0.XX) / 2 = (length of increase in p-rod needed) = (0.YY)
If that figure (0.YY) is more than .025 but <.050, then you'll need 7.425
If less than .025, then 7.40
