Evo 123 - Brian Crower - 4G63 Camshafts Stage 3 (276 Spec)

Brian Crower Stage 3 camshafts (276 spec) — high-performance 4G63T

A step past the Stage 2 grind in both duration and lift, cut for an Evo 1/2/3 that has already moved beyond stock internals and stock fuelling. Holding the valves open longer and further lets a big-turbo 4G63 keep filling and emptying as the revs climb, so power keeps building where the Stage 2 profile starts to flatten. Read the last bullet before you buy: at .436 in lift on both sides this cam needs the BC0100 valve spring kit, and fitting it on tired factory springs is how you find valve float the expensive way. Sold as a matched intake and exhaust set.

• Advertised duration: 276° intake / 276° exhaust
• Duration at .050 inch: 220° / 220°
• Valve lift at 1.7:1 rocker ratio: .436 in / .436 in (11.07mm / 11.07mm)
• Requires the BC0100 valve spring kit — not a stock-spring cam
• CNC ground on 4G63 cores to tight tolerances, dyno tested before production

Fits:

• Mitsubishi Lancer Evolution I (CD9A, 1992–1994)
• Mitsubishi Lancer Evolution II (CE9A, 1994–1995)
• Mitsubishi Lancer Evolution III (CE9A, 1995–1996)

Brian Crower part #BC0104. Available to order; shipping shown at checkout.