Pushrod length with Morels?
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From: Waterloo, Ontario
Pushrod length with Morels? Hi guys-here is the basic-stock LS2 block, AFR 72CC heads, no milling or decking on block or heads, GM MLS 6 Litre gasket, stock rockers-what should the correct or very close pushrod length be with a set of Morels.
Thanks!
Thanks!
Morel lifters are the same length as stock lifters. I had to use 7.3" pushrods for the Jesel rockers, but 7.4" pushrods should work with stock rockers.
Always check pushrod length to be safe!
Always check pushrod length to be safe!
Not correct. I measured the Morels and found the length increased (from memory so I may be off some) by 0.030". The preload is much less as well, I have mine set at 0.040". Using those numbers the pushrod length will decrease approximately 0.100". Recommended preload provided to me by Rick Morel was 0.030"-0.050".
Last edited by vettenuts; Mar 27, 2008 at 12:31 PM.
Not correct. I measured the Morels and found the length increased (from memory so I may be off some) by 0.030". The preload is much less as well, I have mine set at 0.040". Using those numbers the pushrod length will decrease approximately 0.100". Recommended preload provided to me by Rick Morel was 0.030"-0.050".
You are probably correct. I did not messure the lifters. I thought that they were the same. I just know the Jesels checked out needing the 7.3" pushrod, and yes they do have less preload than most.
I have the numbers some where, not sure if I can find them. For the OP, if you have an adjustable pushrod, what I did was unscrew the pushrod so I had the short piece, set it on the stock lifter and measure between the roller and the top of the pushrod. Then I did the same with the Morel. I just remember the difference in pushrod length between the lifter length difference and the preload difference was about 0.100". Best to always measure though.
