GSC Power Division R3 Billet Camshaft Kit Nissan Skyline RB26DETT R32/R33/R34 1989-2002 | 7041R3

R3 is the most aggressive cam spec GSC offers for the RB26DETT — built for builds that have already moved past bolt-on territory and are chasing real top-end power. Where the S1/S2 cams are designed to drop in with no head work, R3 uses a reduced base circle to unlock more lift and duration than the stock valvetrain geometry can accommodate. That's the trade-off: more cam, more power potential, but it requires head modifications to run correctly.

Each cam in the set is machined from forged billet barstock in-house, with a precision-ground lobe profile built specifically around the RB26's cylinder head flow and valvetrain geometry rather than adapted from a generic profile. At this spec, you're looking at a serious step up in both duration and lift on intake and exhaust, aimed at engines built for high RPM and real horsepower, not daily-driver manners.

Fitment: Nissan RB26DETT, Skyline R32/R33/R34 GTR.
Note: R3 cams have a reduced base circle (30.5mm) and require head modifications to install. This is not a bolt-in cam like GSC's S1/S2 specs — consult your engine builder before ordering to confirm your head is set up to run this cam. Sold as a pair — one intake cam and one exhaust cam included.

Key features and benefits

• Most aggressive duration and lift in GSC's RB26DETT camshaft lineup
• Application-specific design built around RB26DETT cylinder head flow and valvetrain geometry
• Forged billet barstock construction, machined in-house
• Reduced base circle unlocks higher lift than stock valvetrain geometry allows
• Sold as a matched pair — intake and exhaust cams included

Specs:

• Part Number: GSC-7041R3
• Brand: GSC Power-Division
• Fitment: Nissan RB26DETT, Skyline R32/R33/R34 GTR
• Intake: 291° ADV duration, 256° @ 0.040", 11.40mm peak lift, 110° center line
• Exhaust: 294° ADV duration, 260° @ 0.040", 11.50mm peak lift, 118° center line
• Base Circle: 30.5mm (reduced — requires head modifications)
• Includes: (2) camshafts (1 intake, 1 exhaust)