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COMP Cams H604-1 - Beehive Hustler Spring for GM 604/CT525 LS Crate Engine

COMP Cams  |  SKU: COMP-H604-1
$3599 $3959

DISCLAIMER: This Item Is Special Ordered, which may have cancellation or return restrictions. Please see our terms and conditions for more information.


AVAILABILITY: This Item Is Out Of Stock.

PLEASE NOTE: Pictures may be representative of style, rather than the actual product. Read the description for more details.

Description

COMP Cams H604-1 - Beehive Hustler Spring for GM 604/CT525 LS Crate Engine

Beehive Hustler Spring for GM 604/CT525 LS Crate Engine

Visually identical to the blue LS6 springs, Hustler Beehive Springs add 4% higher load than stock for better valve control over stock. This spring delivers an advantage in circle track racing for those willing to bend the rules.

The COMP Cams Hustler Valve Spring is an improved version of the popular GM LS6 "blue" valve spring. It's based on the popular GM part #12499224 and #12565313 LS6 springs but with 4% higher seat and open loads for better dynamic control, as well as an extra .020" of lift capability. An excellent performance upgrade in GM 603/604 and CT525 LS crate Race Applications with tight rules packages.

Number of Springs: 1
Compatible Shims: 4753
Spring Style: Beehive
Valve Spring Series: Performance Street
Damper: No
Compatible Titanium Retainer: 722-1
Compatible Tool Steel Retainer: 1772-1
Compatible Chromemoly Steel Retainer: 774-1
Compatible Spring Seat / Seals: 528-KIT
Spring Rate: 386
Top Outside Diameter: 1.077
Open Load: 304
Seat Pressure: 92
Installed Height: 1.8
Coil Bind Height: 1.181
Bottom Inside Diameter: 0.86
Bottom Outside Diameter: 1.282
Top Inside Diameter: 0.655
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?: Yes, but must be a race/competition only vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?: Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?: Yes
C.A.R.B. Exemption Reason: No impact on pollution output of vehicle.
C.A.R.B. E.O. Number: N/A

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