Re: Scat crankshaft ?

gmsmkr July 26th 2015, 10:33 am

69BOSS wrote:Sounds like a nice crank for the money. I can hardly wait to get it. I have been looking at bearing's and am considering Clevite "V" series, they offer .001 or .002 extra clearance and no groove. I don't know what clearance the std H or V series bearings would have as compared to a stock replacement bearing. I know most stock replacement bearings will yield about .001 to .0015 clearance, I am shooting for .003 to .0032. Can anyone tell me should I start with a .001 extra clearance bearing or .002 when using the H or V series bearings???

You need to dumb it up with bearings in it check them and then check the crank subtract the 2 and that's your clearance then adjust from there to where you want..... some times I have to use to different bearing sizes to get the clearance I need.

69BOSS July 26th 2015, 10:50 am

I understand how to check, I am just trying to get away with buying one set of bearings instead of two.
In the old days you could look in the paper catalog and get the crown thickness measurement.

Lem Evans July 26th 2015, 10:53 am

69BOSS wrote:Sounds like a nice crank for the money. I can hardly wait to get it. I have been looking at bearing's and am considering Clevite "V" series, they offer .001 or .002 extra clearance and no groove. I don't know what clearance the std H or V series bearings would have as compared to a stock replacement bearing. I know most stock replacement bearings will yield about .001 to .0015 clearance, I am shooting for .003 to .0032. Can anyone tell me should I start with a .001 extra clearance bearing or .002 when using the H or V series bearings???

To get that kind of clearance the main bearing housing will needed to be honed to 3.193"....the 'high' side of spec.

gmsmkr July 26th 2015, 10:57 am

I don't trust the catalog specs

69BOSS July 26th 2015, 11:42 am

Thanks, I will check the housing bore size and the crank journal diameter when it gets here.

Gary Blair August 12th 2015, 9:11 am

The Lunati crank is a nice piece. Sort of reminds me of an RPM crank. The Lunati is finished much nicer though. The 4.300 will go internal without mallory from my experience.

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