valve springs
Supreme Member
Joined: Mar 2001
Posts: 6,577
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
i assume the 120lbs is open pressure?
if you have some old softies laying around, they would be ideal for break-in. Or if the new springs, are dual coils, remove the inner coil, and break in with just 1 coil set.
if you have some old softies laying around, they would be ideal for break-in. Or if the new springs, are dual coils, remove the inner coil, and break in with just 1 coil set.
Supreme Member
Joined: Sep 2001
Posts: 6,111
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From: Ontario, Canada
Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
Be sure to add a bottle of GM E.O.S. to the oil for initial fireup to help reduce the change of scuffing off a lobe.
Cheap insurance.
Cheap insurance.
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Set to the proper installed height (1.700"), those 981 springs will be fine. Just make sure the installed height is no lower than about 1.685", and no higher than 1.715".
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Junior Member
Joined: Mar 2003
Posts: 81
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From: south texas
Engine: 355 6"rod tbi - in the works
Transmission: 4L60E
981 are what comp recommends, i'm not running 981's though. These are 120lb springs that clear .540 lift easy, they came on the vortecs. the 981's are what i put in my 2nd post, 110lb'ers. I just need a 105-110lb spring I guess, don't feel like paying $60 bucks for some of comps though. I used to be able to get z28 springs for $1 a spring.
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