fillet radius on a 4340 crank

[aliaZ]

Hi!

Are most billet cranks made with a 5/64" radius? Weber Racing sells some cranks with a 5/64" radius, I thought 1/8" was typical.

Has anyone run this crank? Did it require machining the rod bearings for clearance?

Thanks

 

[DailyDrifter]

If bison finds this thread he shoud be able to tell you.

 

[bison]

You need to check everything. It may not need anything. You may need to use the narrow bearings but everything has to be checked. Chamfer as necessary. Most machine shops will make a jig to hold the bearings in and they turn them in a lathe.

 

[gnxtc2]

Most machine shops will make a jig to hold the bearings in and they turn them in a lathe.

Yep.

Billy T.
gnxtc@aol.com