springs for ms3 or ms4 ?
I see their listings and just would like to know if most people go with the springs good for .660 lift or go for the ones good for .700 lift. My idea of using the .700 lift springs with either ms3 or ms4 would be to possibly get a longer life out of the springs since they wouldnt be at their max rated lift. Does this sound like it could be a good idea or am I thinking too much? I see they only expect 30k miles out of the .660 springs. Also with using the .700 springs you would have better options in cam selection if you ever want to change it up a bit.
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I've got the .660 springs on my heads and haven't had a problem
EDIT: should have said my springs are PRC's
EDIT: should have said my springs are PRC's
Last edited by Z28/2002; Oct 29, 2009 at 06:20 PM.
I have the .650 springs with the MS4. The stiffer the springs, the harder on your valvetrain. Just get the springs required for each. If you want the MS4, they will sell you the .650 PRC gold double springs, not the .660 PRC platinum doubles.
Texas Speed said that PRC gold springs are the new springs that accompany their MS4 camshaft. They also said that PRC gets these springs from a different manufacturer than before. They said that this new manufacturer has better quality and offers a better spring that should outlast the previous .660 PRC double platinums
Texas Speed said that PRC gold springs are the new springs that accompany their MS4 camshaft. They also said that PRC gets these springs from a different manufacturer than before. They said that this new manufacturer has better quality and offers a better spring that should outlast the previous .660 PRC double platinums
I have the .650 springs with the MS4. The stiffer the springs, the harder on your valvetrain. Just get the springs required for each. If you want the MS4, they will sell you the .650 PRC gold double springs, not the .660 PRC platinum doubles.
Texas Speed said that PRC gold springs are the new springs that accompany their MS4 camshaft. They also said that PRC gets these springs from a different manufacturer than before. They said that this new manufacturer has better quality and offers a better spring that should outlast the previous .660 PRC double platinums
Texas Speed said that PRC gold springs are the new springs that accompany their MS4 camshaft. They also said that PRC gets these springs from a different manufacturer than before. They said that this new manufacturer has better quality and offers a better spring that should outlast the previous .660 PRC double platinums
Let us know if you have any questions.
Trevor
Texas Speed & Performance
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Thats some good info on the springs and I would much rather have a drop in spring unless im doing a all out race setup. I will most likely go with the prc eht .675 spring kit and as far as the push rods I should be good with the stock length or is the ms3 and ms4 ground on a smaller lobe center. I know as long as the heads havent been milled and the cam is on the same as stock lobe center I should be fine with stock length. I will be replacing them as well just want to be sure on the length.
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Brett Foote I know the MS4 is on a smaller base circle, when I was cam only with stock heads and gaskets, they rec the 7.425" and those were good. Then I went with new lifters and heads and went back to 7.400"
Like the guy above me said, the MS4 has a bit smaller base circle than the MS3 to get those aggressive ramp rates...with a completely stock long-block, the best guess at length is 7.425".
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Pushrods are always the last thing to order/decide on. We can make our best educated guess at the length you'll need, but there are enough variables there that measuring is the only way to get it right 100% the first time! The first time you charge your buddy pizza and beer to measure their pushrod length correctly, the $20 tool has paid itself off 
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COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Ive been thinking and have come to the thought of getting a torquer v.2 would you think
I should go with the .660 springs or would the comp 918 springs be a good choice.
I should go with the .660 springs or would the comp 918 springs be a good choice.
