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rollers or modified.

I ran Harland Sharp 1.9 RR's and 105#'s, no issues. Lot's of good advice on here - mainly like TDC said - the need for 105's is more important than a lot of people think. Valve float = no bueno.

- Swash
 


BillBoost37 said:
It's a GM spring, that's cheap and readily available at dealerships from what I've heard on the street.

Another low cost choice is looking to ebay for LS6 springs. Usually there is a set or two going very cheap. Only thing there is you shouldn't use them on a 96 or 97 head because of the shape.
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cool thaks bill! do the LS6 springs have a diff max lift rate?
 
Pulled from Intense's site.

LGVS-LS6 Specifications:
  • Installed load is 90 pounds at 1.800", 115 pounds at 1.720", and 300 pounds at 1.230".
  • Coil bind height is 1.160".
  • Outside diameter is 1.290"/1.060" and inside diameter is .885"/.656".
  • Maximum lift supported @ 1.720" (stock retainer install height) - .500"
  • Maximum lift supported @ 1.800" (Manley retainer install height)- .580"
VSS-105 Specifications:
  • Installed load is 105 pounds at 1.800", 127 pounds at 1.720", and 293 pounds at 1.200".
  • Coil bind height is 1.125".
  • Outside diameter is 1.290"/1.060" and inside diameter is .885"/.656".
  • Maximum lift supported @ 1.72 (stock retainer install height) - .595"
  • Maximum lift supported @ 1.80 (Manley retainer install height) - .675”
VSS-130 Specifications:
  • Installed load is 130 pounds at 1.800", 150 pounds at 1.720", and 318 pounds at 1.200".
  • Coil bind height is 1.080".
  • Outside diameter is 1.290"/1.060" and inside diameter is .885"/.656".
  • Maximum lift supported @ 1.72 (stock retainer install height) - .640"
  • Maximum lift supported @ 1.80 (Manley retainer install height) - .720"
 
And some L76 info, quoted from RegalGS and other sites.

The L76/L92 valve spring. Part # 12589774. With a GM list price of $3.59 each. (Pace Perf, $2.59)They have the same 90# seat pressure as the yellow LS6 spring, but a lower spring rate. LS6 are 375#/in. L92 are 348#/in. The Comp Cams 105# springs have a spring rate of 313#/in.
These springs actually cost less than our stock springs.

The valve spring specs for the GM springs are on page 281 of the 2008 GM Performance Parts Catalog. The L92 spring does have a limit of .530 lift so it is for rockers and mild cams, like the VS. By my calculations, at .500" lift the L92 and the 105# Comp cams are within 3 or 4 lbs in total pressure. This is a lower cost set up that should lower the wear compared to the LS6.

From the GMPP catalog 12589774
Valve Springs
• Beehive style springs
• Standard L76/L92 springs
• 1.800" installed height @ 90# pressure
• 1.300" @ 264# pressure
• Max lift .530"
 
stock cam is .258/.258, so with 1.95 ratio rockers it would end up being .503/.503 total lift. technically they should be okay. you might want a stronger spring for the peace of mind.
 
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05SS45 said:
so no price's or place's to get L76 springs lol!
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Oops sry man :p. I just decided to re-visit this thread. I think i paid $80 for mine, i got them from the dealer. If i were to do it again, i would buy from Pace, there prices are pretty good.
 
FWIW, I just found my receipt for my L76 springs. About $32 from ZSPOT on NAIOA.com. So, 05SS45, if you're looking for springs, I'd contact ZSPOT no matter what spring you go with.
 


Do I have to pull the motor on an 05 to install a cam. Thats the only reason I would use rockers instead.
 
no, you can do it through the passenger side fender well if you drop the cradle a little bit. ive done it in and out of the car.
 


Bio248 said:
no, you can do it through the passenger side fender well if you drop the cradle a little bit. ive done it in and out of the car.
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Is this a hard Job to do, what needs to be removed in the passenger fender well? I will just go with rockers if this is a difficult job. And when u say drop the cradle approx how far

Appreciate the advice guys, I really would like a cam for ultimate performance.
 
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