Evo 123 - Brian Crower - 4G63 Camshafts Stage 3 (276 Spec)
Stage 3 High Performance Camshafts for the 4G63T
Brian Crower's Stage 3 276 spec camshafts step up duration and lift over the Stage 2 grind for added rpm potential and bigger horsepower gains. This profile is aimed at owners chasing more aggressive power from a built or higher boost 4G63T. Each cam is CNC ground to tight tolerances and dyno tested before production. Sold as a matched set; the BC0100 valve spring kit is required.
Specifications
- Material: CNC ground 4G63 camshaft cores
- Advertised Duration: 276 degrees intake / 276 degrees exhaust
- Duration at .050 inch: 220 degrees / 220 degrees
- Valve Lift (1.7:1 ratio): .436 inch / .436 inch (11.07mm / 11.07mm)
- Intended Use: High performance; requires BC0100 valve spring kit
Why it matters on your Evo 1-3
More duration and lift let a boosted 4G63 keep breathing as rpm climb, so power builds higher in the band where bigger turbos and supporting mods deliver. The Stage 3 276 grind suits an Evo that has moved past stock internals and stock fueling and wants to make the most of its top end.
Fitment
Mitsubishi Lancer Evolution I, II and III (CD9A / CE9A), 1992 to 1995. 7-bolt 4G63T 2.0L turbo.
