Ford 4.1 track ready X-flow

This 250 X-Flow cylinder head has been prepared to spec for speedway racing for one of our interstate customers.

It’s all the about the flow with oversize valves (inlets are from a 351 Cleveland), a full set of valve seat inserts to accommodate our bigger valves, and stage 2 porting including reducing the short turns and removing the excess material around the valve guide boss’s.

Back-cut valves & 5 angle valve seats add a little extra to an already much improved flow, a combustion chamber volume of 50cc will give us a 13:1 compression ratio.  Finished off with a set of Crow single valve springs with dampener’s, this little beauty will be hard to stop during the coming speedway season.   250 X-flow cylinder heads, built to order, are available on our web store here