lt1 springs

[MagicMan]

hey guys what kind of lt1 valve springs to i need to run
thanks for the help
will any lt1 spring work or does it need to be a specific year

[KenMosher]

The "LT1" springs is a confusing monicker....


The ones that people usually use are the GM springs (that happened to be used on the LT-1 Corvette in 1970) that were listed in the Buick PowerSource manual for upgraded cams.

The part number 3927142 for these can be found at :

http://www.gnttype.org/numbers/8687pn.html

Further down the page are the aftermarket springs (Comp Cams and Fed. Mogul), some with a little less seat pressure that work very well:

OD(in.)Closed#Open#Rate(#/in.)Part number1.2080200267VS6771.2385230295VS16151.2641052 77350VS739R1.2480200267CC 9791.2391229307CC 9801.25105295423CC 981

{EDIT} Formatting went to hell when I pasted it, but you'll see it down a bit further under Aftermarket parts.

[MagicMan]

thanks for the reply which spring would be best an lt1 spring or a set from comp cam etc. also where can i get valve seals at part number? anything to help me out? also would i need retainers? thanks for everything guys
magicman

[jastrckl]

cc980's are very popular. if you're breaking in a cam, I'd use weak springs to do it.

[KenMosher]

If you are using a stock cam, then just use the CC980 springs. Valve seals are still available directly from GM and most parts places like NAPA.

If your retainers aren't bent or worn, you can reuse them, but new ones aren't that expensive.

[Wagondraggin]

you said you are looking for all of this stuff..

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7912145763&category=6763

[Vacuum 6]

Hey Ken. A quick question…my 1987 motor has 93k miles stock heads, intake, cam etc. I heard 80# springs were the best for a stock motor (do not have to worry about wiping a cam). On http://www.gnttype.org/numbers/8687pn.html which 80# spring is the best to purchase.

[MagicMan]

o.k. guys i am gonna order a set of 16 comp cam 980's
part Number 249-980-16
this is the right valve spring for a daily driven t-type with a stock cam correct?
if these aren't the right springs then send me a link to point me in the right direction. or even send me a link anyway of the right springs
thanks for all the help

[MagicMan]

can anybody help verify these are the right springs?