2000SSilver

Can someone please confirm for me that the 2000 stock valve spring max lift is .525? I'm thinking I can reuse my stock, low mileage valve springs from my LS1 in my 5.3 truck with small cam as long as lift is not greater than .525. Thanks a lot.

Cal

iTrader: (1)

With a 0.525 lift you should be using at least LS6 springs, not stock LS1 springs. LS6 springs aren't that expensive anyway.

Cal

iTrader: (1)

You could do it, but you would have to run a lower peak rpm to keep the valves from floating. Changing springs isn't too bad with the right spring tool and technique. Surprisingly, the easiest spring tool to use is the cheap NAPA Auto Parts lever tool; you just need to cut the handle off and use a bolt to force the tool to compress the spring.

2000SSilver

Ya, I know but I'm trying so save a little money so I have more to spend on the sound system. The cam I'm looking at for my truck is mild with only .514 of lift. Thanks! Any other opinions on how this will work or not? Thanks again.

Aidan

Ive got about 30 5.3l trucks running around with stock springs and 02 z06 cams in them (one with 40k since install). Those cams are around .550 lift and zero problems so far.

2000SSilver

Hey Aidan,
Thanks for the info, it answered and addressed most of my concerns. But to clarify, you know of about 30 5.3l trucks using the stock F-body or truck springs? Thanks