Engines and Components› Camshafts and Valvetrain

COMP Cams

VALVE SPRING, 1.282 BEEHIVE,

$45.36

SKU: C007 H604-1

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The COMP Cams H604-16 is a set of Beehive Hustler valve springs designed for GM 603/604 and CT525 LS crate race applications. These springs offer 4% higher seat and open loads than stock LS6 springs, providing better valve control and an extra .020" of lift capability.

Engineered as an improved version of the GM LS6 "blue" valve spring, these are based on GM part #12499224 and #12565313. They feature a 386 lb/in spring rate and a 1.181" coil bind height, with outer diameters of 1.077" (top) and 1.282" (bottom).

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCOMP Cams
Part NumberC007 H604-1

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy