Join Date: Mar 2002
Location: Austin, TX, USA
Can't say as I've ever measured one before to know the interferance. Sounds like it will be an effort to drive in. How does the ID measurements compare. In other words, if you compress the outer diameter by 0.015, have you got say 0.020 inner clearance to keep from binding the pilot shaft? If you're concerned, could you chuck in up in a drill with a bolt and "machine it" with some 200 grit or so? I'm curious what comes of this thread, if you go too far in either direction, the results are unfavorable, but I can't say what the optimal tolerance should be.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI