GSC
Evo 123 - GSC - Billet S1 Cams
$635.21
✓ Sourced & shipped from our warehouse✓ Real Evo fitment support
GSC Billet S1 Camshafts, 268 Degrees. 4G63, Evo 1/2/3
Camshafts set the ceiling on how much air the 4G63 can move, which is why a stock-cam engine stops responding to more turbo and more exhaust at a certain point. At 268 degrees the S1 is the gentlest profile GSC offers in billet for this engine: enough extra duration to keep the head breathing past the stock powerband, without dragging idle quality and part-throttle manners down with it. Machined from billet rather than cast, so the lobe forms stay exactly where they were cut.
- 268 degrees of duration, GSC S1 profile
- Machined from billet
- For the 4G63 DOHC 16-valve head
Fits:
- Mitsubishi Lancer Evolution I (CD9A, 1992–1994)
- Mitsubishi Lancer Evolution II (CE9A, 1994–1995)
- Mitsubishi Lancer Evolution III (CE9A, 1995–1996)
GSC part #GSC7003S1. Available to order; shipping shown at checkout.
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