Engine Top End

[06T200]

Yes, 6mm (.236) is the correct ID you are shooting for on all guides. 6.02mm being the limit of wear. We used a goodson 6m reamer on mine, but any good reamer will be fine. If you have a pneumatic driver they should pop right out with a few zaps. Or use a brass stepped punch to hammer out/in. If you get a stubborn one, heat the head up to expand the material a bit. Again make sure your new valves seat correctly afterward, and true up as needed. The smaller OD of the exhaust valves is to account for their heat load and expansion, they run pretty hot.