2 replies to this topic

[hulsmeier]

Hi, 

I have a spi head I'd like to have ported, was hoping some people could give me a general idea as to how much it would cost?

I am also considering having the guides done, larger valves, chamber reshaping, and 3 angle on the valves and seats. 

Thank you in advance. 

[mini13]

Talk to TurboPhil on here,

[Fast Ivan]

depends on the extent of the porting, which depends on the cam choice, but for a typical stage 3 your looking at around the 450 area.

Best bet would be to talk to AC Dodd, Calver, slark or similar to discuss whats the best way to go with your engine spec