Valve Spring Kit
Valve Spring Kit; 4140 Heat-Treated Chrome Molly Steel Spring Seats w/Black Oxide Coating; 6AL4V American Titanium Retainers; 29 Grams Per Spring; Set Of 40; 4 lbs.;
SPECIFICATIONS:
- Camshaft Type: Hydraulic
- Coil Bind Height: 0.718 in.
- Inside Diameter: N/A
- Installed Height: 1.320 in.
- Installed Pressure: 60 lbs.
- Open Height: 0.820 in.
- Outside Diameter: 1.222 in.
- Spring Type: Single
- Tubing Length: 168
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
FEATURES:
- Increase Valve Train Control
- 71 Percent Weight Reduction Over OEM Golf R Retainers
- 19 Percent Weight Reduction Over OEM Golf R Springs
- 20 Percent Stiffness Increase Over OEM Golf R Springs
- Eradicates TSI K04 Valve Float Issues
- Supports Higher Revving Application
- Weight Saving Beehive Spring Design
- ASTM A877A OTSC Round Wire Steel Springs
- 6AL4V American Titanium Retainers
- 29 Grams Per Spring
- 2 Grams Per Retainer
- Compatible With OEM Valves
The APR Valve Spring System is a high performance, lightweight upgrade designed to increase valve control and eradicate valve float common on many applications. APR's design specifications called for a valve spring, retainer and spring seat combination that doesn't overpower and snap the OEM valves or erode the aluminum spring seat, while still maintaining exceptional valve control. The result is an advanced design that's 28% lighter yet 20% stiffer than the high performance OEM Golf R setup and is proven to eliminate the OEM valve train's weakest link. We call it Performance Without Compromise!
APR LLC is an automotive engineering firm operating a 78,000 sq. ft. performance campus in Opelika, AL with 50 employees. APR was founded in 1997 with a corporate philosophy of Innovation, Integrity, and Excellence. APR's Sole Mission is to provide the highest quality and most highly engineered aftermarket performance products available for Porsche, Audi and Volkswagen vehicles.