tta656

iTrader: (5)

I have stockers for the 5.3, then i have the Yellow springs, and i have Katech ls7 springs...
now i know this isnt the right way to determine,but squeezing the stockers by hand and the yellow springs,theres a slight diff,but these katech springs a much more stiff,they all appear to be the same height,i just dont want to mess up my zo6 cam that i just installed...

this will be for turbo application,i will get the link to katech springs and post a pic..soon

tta656

iTrader: (5)

Stockers with 25k miles-------Yellow unknown miles----Katech Ls7 2k miles





link to Katech Springs
http://store.katechengines.com/high-...prings-p8.aspx
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killernoodle

5 coils vs 6 means the katech springs will be stiffer than the yellows with the same wire diameter. They'll probably be fine for turbo.

denmah

iTrader: (2)

i use these in all my mild cammed turbo builds they work great up to 20lbs of boost so far

140 ish dollars new and use all stock hardware, ive been using them with ZR1 cams and 22lbs of boost, they work great.

http://sdparts.com/details/pac-racing/pac1218