TSP 224/228 cam kit
#1
TSP 224/228 cam kit
Im going to order this cam kit but the problem i have is that i dont know what size of pushrods to get since im going to get the ls7 lifters. My engine is a 5.3 with 862 heads. Anyone done this before?
#3
Yea well i've been reading and I think it should be around 7.35 since the lifters are around 0.50 longer well the cup is. So I think im going to go with those for now. I am ordering a pushrod checker just in case.
#6
I ran 7.350 with ls7 lifters and heads milled 0.03 and they were to short. It was very noise and the rockers were not in the middle of the valve stem. I put 3.375s in and they are much quieter and the rockers are back to being in the middle of the valve stems. Even though the Ls7 lifters are a 0.05 taller that doesn't mean you need a 0.05 shorter push rod, at least from my experience.
#7
TECH Regular
iTrader: (3)
The height of the lifter cup when not preloaded does not matter. It is the preloaded height that you care about. LS7 lifters are now the standard replacement lifter for every LS engine and they are direct replacement. That means you can't assume you need shorter lifters simply because the unloaded lifter cup sits higher. Here's a link to a thread created by a guy who works on these engines at GM. He is more than just a mechanic, likely an engineer but I'm not 100% sure what his position is.
The Anatomy of a Hydraulic Lifter - Corvette Forum
The Anatomy of a Hydraulic Lifter - Corvette Forum
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#8
On The Tree
iTrader: (20)
Great article, however the pix will not load...Get the "spinning beach ball" treatment....Old post I guess, and yes, i am a member there as well..Tried to look at the pix by logging in but that didn't help either..
Yes, must be a GM engineer by his replies on the links in the post...
Great info for all....Thanks!
Yes, must be a GM engineer by his replies on the links in the post...
Great info for all....Thanks!