LT1 valve springs
Thread Starter
Burning Brakes
Joined: Apr 2006
Posts: 787
Likes: 2
From: Ontario
LT1 valve springs
If you were doing the heads on a mild street engine, what would you replace the springs with cost effective wise? ( increasing ratio to 1.6 with stock cam)
Dual spring, aftermarket?
TIA
Dual spring, aftermarket?
TIA
Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
If you aren't planning a camshaft change, the LT4 springs would be a good choice. Also, they are very cheap, ~$40. If you plan on eventually doing a camshaft swap, you may want a better spring.
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
And although they list a different reainer for the LT4 springs, they'll work fine with the LT1 retainers. When I used the LT4 springs, I used my stock retainers with no issues. If you go cam later, I'm a real believer in the beehive springs for applications for which they're suitable. I've been using the CC 26918s for many, many miles now. Adequate spring pressure is important of course. But excessive pressure has no benefits. It will only cause unnecessary wear, parasitic HP loss, etc.
Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
He plans on running 1.6 rockers, and will need at least the LT4 springs. With 1.6 rockers the stock LT1 springs are dangerously close to coil bind.
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