996 BIG VALVE
Only the Ultimate version is available at £859
plus the cost of the valves required.
This oversize valve
conversion uses high flowing 37, 38 inlet and 31 exhaust valves for
performance up to 150+ hp depending on the final engine spec. This head
will be re-designed to work with your chosen cam and intended
application (i.e. road or race)
street/track 996sps made 148 rwhp with these heads, hi comp pistons and
nothing else except for custom mapping.!
See Adrian's 996sps
on our Customer Projects Page.