Note: Please be clear that we offer the tool to cut for 94mm cylinders, however, we still do not recommend them, or 92's, for an engine that must cool properly and/or make good power for a long period of time.
Gene originated this massive 3/4" steel plate in 1967 for use under our GB 700 flycutter on heads with 6 locating knobs. Gives parallel mounting surface for flycutter. Has 2 alignment pins that match the head so it can only fit one way. Simply put on the head, set the flycutter on it, center the flycutter with its center and secure with old 8mm head studs or equivalent. Clears up through 94mm head bore size. Cuts into the original head bolt hole pattern. Has 0.340" holes and special ground pins for location that are ground back with flats to clear the tool when cutting for 94mm cylinders. Made in USA by Gene Berg Enterprises. SW 7#