Required for the 7045S3 are the GSC 5054 Beehive valve springs and lightweight titanium retainers, this combination will keep the valve train happy up to 9,800 RPM at 60 PSI of boost. GSC specifically designed the valve springs and retainers for the high horsepower VR38DETT and utilize different intake and exhaust retainers to keep proper spring seat pressure.
Billet S3 Specs GSC7045S3
Intake: 280° Total Duration / 242°@1mm / 11mm peak Valve lift / 130 degree Suggested Centerline / .30mm±.05mm
Exhaust: 280° Total Duration / 244°@1mm / 11mm peak Valve lift / 118 degree Suggested Centerline / Valve Clearance .36mm±.05mm
- Suggested for stroker or high reving engines
- Upgraded valve springs required
- Head clearancing may be necessary for lobes
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