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Ken911's Avatar
 
Join Date: May 2005
Location: Loxahatchee, florida
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best source of performance valve springs?

OK so I am looking at performance valve springs and titanium retainers. I have ready several places that eibach makes some very good ones but no idea where to get them. Still havent decided on who's doing the heads yeat but want to have all the parts ready before I send them.

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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's.
2019 Silverado 6.2L

Last edited by Ken911; 03-27-2011 at 06:37 AM..
Old 03-27-2011, 06:34 AM
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Unless the engine has been prepared and will be rev'ed well past the redline to 8000-9000RPM, your money may be well spent elsewhere on the engine.

Stiffer valve springs on a stock engine will only make it work harder to do it's job, since the resistance is increased.
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Last edited by Tilikum Turbo; 03-27-2011 at 06:53 AM..
Old 03-27-2011, 06:45 AM
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I think pn EB 20444-212 is the correct spring for a 964 cam.
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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's.
2019 Silverado 6.2L
Old 03-27-2011, 07:23 AM
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eibach 911 valve springs

where else would they be?
Eibach Valve Spring-Set of 12 Porsche 911 63-97 - eBay (item 400158097033 end time Apr-24-11 04:46:49 PDT)

so far, Henry @ Supertech speaks well of them on the engine rebuild forum.
price is nice too.
Old 03-27-2011, 09:17 AM
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Call Bill At Extreme Cylinder Heads in Palm City, he has his own he uses and knows what works.
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Old 03-27-2011, 10:49 AM
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+1 on Bill at Extreme...anything related to the heads, he can certainly steer you right.
Old 03-27-2011, 11:23 AM
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Originally Posted by JFairman View Post
where else would they be?
Eibach Valve Spring-Set of 12 Porsche 911 63-97 - eBay (item 400158097033 end time Apr-24-11 04:46:49 PDT)

so far, Henry @ Supertech speaks well of them on the engine rebuild forum.
price is nice too.
those are the stock evs springs the pro springs are the pn listed above.
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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's.
2019 Silverado 6.2L
Old 03-27-2011, 12:26 PM
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Quote:
Originally Posted by Tilikum Turbo View Post
Unless the engine has been prepared and will be rev'ed well past the redline to 8000-9000RPM, your money may be well spent elsewhere on the engine.

Stiffer valve springs on a stock engine will only make it work harder to do it's job, since the resistance is increased.
How much revs and lift will stock components take?

Best regards Stefan
Old 03-28-2011, 04:04 AM
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Not sure how much the stock components will take and mine is no where close to stock even now. So with efi i plan on it as a safety measure.
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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's.
2019 Silverado 6.2L
Old 03-28-2011, 05:48 AM
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shouldnt rev higher than 7k but if i miss a shift (which i have done a few times) i dont want it to go boom.

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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's.
2019 Silverado 6.2L
Old 03-30-2011, 02:37 PM
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