will this spring work with vortec head???
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: will this spring work with vortec head???
Here's a tip for you to consider.
Use the Manley valve springs part #22410 & retainer Part #23652 and Pioneer screw in studs part #850001 without the hex.
They fit the Vortec heads without machining and will allow .520 lift safely.
I have used these numerous times with success.
All you have to do is remove the factory studs and tap the bosses, use a pair of nuts locked on to the stud to screw them in.
Comp makes a stud remover tool part # 5306 that helps to remove the studs and tap the holes (no drilling needed).
HTH
Edit: pressures are 125# seat...340# open @.500 lift
Use the Manley valve springs part #22410 & retainer Part #23652 and Pioneer screw in studs part #850001 without the hex.
They fit the Vortec heads without machining and will allow .520 lift safely.
I have used these numerous times with success.
All you have to do is remove the factory studs and tap the bosses, use a pair of nuts locked on to the stud to screw them in.
Comp makes a stud remover tool part # 5306 that helps to remove the studs and tap the holes (no drilling needed).
HTH
Edit: pressures are 125# seat...340# open @.500 lift
Joined: Dec 2005
Posts: 6,499
Likes: 31
From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: will this spring work with vortec head???
Here's a tip for you to consider.
Use the Manley valve springs part #22410 & retainer Part #23652 and Pioneer screw in studs part #850001 without the hex.
They fit the Vortec heads without machining and will allow .520 lift safely.
I have used these numerous times with success.
All you have to do is remove the factory studs and tap the bosses, use a pair of nuts locked on to the stud to screw them in.
Comp makes a stud remover tool part # 5306 that helps to remove the studs and tap the holes (no drilling needed).
HTH
Edit: pressures are 125# seat...340# open @.500 lift
Use the Manley valve springs part #22410 & retainer Part #23652 and Pioneer screw in studs part #850001 without the hex.
They fit the Vortec heads without machining and will allow .520 lift safely.
I have used these numerous times with success.
All you have to do is remove the factory studs and tap the bosses, use a pair of nuts locked on to the stud to screw them in.
Comp makes a stud remover tool part # 5306 that helps to remove the studs and tap the holes (no drilling needed).
HTH
Edit: pressures are 125# seat...340# open @.500 lift
Obviously it needs to be double checked once installed.
I also hear that LS3 yellow springs and Comp beehive retainers will also work.
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Joined: Jan 2002
Posts: 4,432
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From: garage
Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
Re: will this spring work with vortec head???
Here's a tip for you to consider.
Use the Manley valve springs part #22410 & retainer Part #23652 and Pioneer screw in studs part #850001 without the hex.
They fit the Vortec heads without machining and will allow .520 lift safely.
I have used these numerous times with success.
All you have to do is remove the factory studs and tap the bosses, use a pair of nuts locked on to the stud to screw them in.
Comp makes a stud remover tool part # 5306 that helps to remove the studs and tap the holes (no drilling needed).
HTH
Edit: pressures are 125# seat...340# open @.500 lift
Use the Manley valve springs part #22410 & retainer Part #23652 and Pioneer screw in studs part #850001 without the hex.
They fit the Vortec heads without machining and will allow .520 lift safely.
I have used these numerous times with success.
All you have to do is remove the factory studs and tap the bosses, use a pair of nuts locked on to the stud to screw them in.
Comp makes a stud remover tool part # 5306 that helps to remove the studs and tap the holes (no drilling needed).
HTH
Edit: pressures are 125# seat...340# open @.500 lift
What about running a different keeper for a 1.750" installed height if I want to install 1.6 rockers later on? Seat pressure would be around 120#.
110+.1(370) = 110+37 = 147 # at 1.7" installed height
110+.050(370) = 110+13 = 128 # at 1.75" installed height
Maybe just machine pockets another .050" for decent seat pressure and gain .050" of lift giving max lift of 1.75 - 1.160 +.050 = .540"
Code:
RV-1943X Details Part No. Free Lgth. O.D. I.D. Wire Size Closed pos. Open Pos. # of cls. L/R Solid Ht. RV-1943X 2.140 1.253/1.267 .869/.883 .192 104-116 @ 1.800 309-341 @ 1.200 7.00 RH 1.160
They have a 1.085" bind height and 90# at 1.8" installed, 375 lb/in.
So installing at 1.7" should give 90+.1*375 = 90+37.5 = 127.5 # closed. Good for the roller cam
1.700 - 1.085 + .050 = .565" max lift.
Last edited by junkcltr; Dec 12, 2013 at 04:02 PM.
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