EVO® Big Twin 1340cc Stage 1

EVO® Big Twin 1340cc Stage 1

Ports gas flowed Stage I (136 cfm @ 10" Lift .500"), camshaft BK EV500, skim heads, top end gaskets, pushrod kit, camshaft gear wheel re-fitting.
The life expectancy is as normal & engine doesn’t need running in.

Result: Compression ratio 9.3:1 - 9.5:1, Power Output: approx. 87 BHP (64kW).
Torque: approx. 123 Nm