AP-02 is an unusual adapter as it is one of the few that are castings. To make the smooth tran- sition from rectangle to oval PME cast the 1.23” thick plate to gain the optimum in performance.

Windsor and Cleveland heads physically inter- change but modifications are required to route the water into the intake.

Although these were designed for the 2V head, they can be opened up to the 4V size.

Wait until you have received the instruction sheet from PME before you start the water relocation.