cam retaining bolt size change

[tuffxf]

G,day,
On a steel roller, came with a 3/8 unc thread.
Are they able to be drilled and tapped for a 7/16 or 1/2" unf or are they too hard?
Thanks very much!
Paul

[blown265]

Gday Paul
If the opposite end of the cam isn't used, you could test a drill/tap. This will confirm, on your specific core, whether it's feasable.
Regards
Paul

[tuffxf]

G,day Paul,
That is a good idea!
Cheers
Paul

[jred]

I think that if its a steel billett roller and made out of 8620 material its going to be heat treated and harder than hell to drill and tap lots of luck

[pdq67]

Probably drill it with a, "hard-bit", like a Cobalt type.

I was at SEMA years and years ago and a guy was hawking them. He let me drill through the middle of a big Nicholson bastard cut file! Then a rear end leaf spring!

pdq67

[DaveMcLain]

The center of the cam won't be real hard and it usually is pretty easy to drill and tap to 7/16-20