stock valve spring specifications
11-11-2009, 06:50 PM
#1
Pro
Thread Starter
stock valve spring specifications
Where can I find the stock valve spring specs on a 2002 Z06? I want to compare with aftermarket springs. I want to replace with something close. (already broke one). However I don't want to over stress the rest of the valve train with a heavier spring. 
I don't plan on a cam or other mods in the future...... just want to fix the bad springs. (thanks GM 
) Any input is appreciated 
I don't plan on a cam or other mods in the future...... just want to fix the bad springs. (thanks GM ) Any input is appreciated
11-11-2009, 08:10 PM
#2
Instructor
2002 Z06 valve springs
GMPP CATALOG 2008
"12499224
LS Valve Spring Kit (not shown)
• Beehive style springs
• 1.800" installed height @ 90# pressure
• 1.250" @ 295# pressure
• Used on LS2/LS6 cylinder heads
• Max lift .570"
• Includes 16 of P/N 12586484 "
http://www.summitracing.com/parts/NAL-12499224
I am pretty sure the 2002 springs were the same spec but different part number than these 2004.
"12499224
LS Valve Spring Kit (not shown)
• Beehive style springs
• 1.800" installed height @ 90# pressure
• 1.250" @ 295# pressure
• Used on LS2/LS6 cylinder heads
• Max lift .570"
• Includes 16 of P/N 12586484 "
http://www.summitracing.com/parts/NAL-12499224
I am pretty sure the 2002 springs were the same spec but different part number than these 2004.
