Need Info. on max......
Thread Starter
Racer
Joined: Jan 2002
Posts: 401
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From: Cantonment Florida
Need Info. on max......
Valve Lift the stock LS2 Beehive valvesprings will handle, and give trouble free service ? I'm asking because I am considering doing 1.8 rocker arms, but I don't want to have valvesprings that are on the ragged edge of durability. Thank's in advance for your input....
Steve.
Steve.
Drifting
Joined: Nov 2002
Posts: 1,651
Likes: 125
From: laguna niguel ca
Tested the stock spring on a valve spring tester. @ 1.80 installed height
95lbs on the seat, @ .570 lift 290 lbs. Coil bind is at 1.220. Anyway, if you're going to increase your lift with 1.8 rockers, you'll be at .556 lift,
which is OK with 1.8 rockers. Another option is comps 918 behive springs. 130 lbs of seat pressure and 315 lbs at max lift of .600. Stock cam profiles aren't hard on valve springs. you shouldn't have any problems.
95lbs on the seat, @ .570 lift 290 lbs. Coil bind is at 1.220. Anyway, if you're going to increase your lift with 1.8 rockers, you'll be at .556 lift,
which is OK with 1.8 rockers. Another option is comps 918 behive springs. 130 lbs of seat pressure and 315 lbs at max lift of .600. Stock cam profiles aren't hard on valve springs. you shouldn't have any problems.
Drifting
Joined: Aug 2000
Posts: 1,747
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From: Sebring, Florida
Originally Posted by P-Colavette
Valve Lift the stock LS2 Beehive valvesprings will handle, and give trouble free service ? I'm asking because I am considering doing 1.8 rocker arms, but I don't want to have valvesprings that are on the ragged edge of durability. Thank's in advance for your input....
Steve.
Steve.
Most 1.8 rocker arm kits I've seen advertised come with the necessary springs, retainers, keepers, etc.
Thread Starter
Racer
Joined: Jan 2002
Posts: 401
Likes: 0
From: Cantonment Florida
Thank's guy's...
Andreas, I had pretty much figured the lift, just wasn't sure what the limit on coil bind was. I am just going to install rocker arms, as I believe the factory spring's, retainer's, and lock's will last with this combination. Thank's Again...
Steve.
Steve.
