Our buckets of 604 valve springs that do NOT meet our criteria are getting pretty full.
These are great for chip rule applications where the engines run 6300 or less.
also street and hobby stock applications
these springs are NEW GM and within GM spec but not where we like them for open RPM 604 racing
$49 per set including shipping to a commercial location
Residential purchases are $35+ shipping
please contact me via email, text or phone