Stock front cover on an On Center

[rking]

How much do I have to have machined off to get the stock front cover to work on my On Center block. TIA

 

[Mac in SD]

.120. You'll also have to machine the main accessory bracket that much, too, to get the alternator, a/c, p/s to line up. Also, if you're using the Duttweiler oil pump, you'll probably have to do a little grinding on that to clear the block. (No big deal)

A lot of guys endorse just using a .120 spacer behind the balancer, but I was concerned about cam sensor-to-cam gear alignment.

 

[jamesmac]

You have to measure the depth of the lip at the front of the block & that is the amount that has to be removed. I don't think they are all the same. Mine is @ .120" & my buddy says his is .090".

If you are using a roller cam, you could use the cover the way it is, & use a spacer the thickness of that measurment on the crank,between the gear & the balancer, & one the same thickness on the cam between the spacer & the gear, & it all lines back up. You probably already know you have to weld a small spot on the drivers side @ the bottom to prevent oil leakage.

James

 

[rking]

I will have to weld a small spot where?

 

[TurboTR]

None, just space out the pulley Easy enough. I have a stock cover on mine.

TurboTR

 

[EightSecV6]

Using a spacer on the crank and cam will work fine. I have never had to weld/epoxy any spots on the front cover, I have studied the area of concern and if you look at the gasket,block and cover, it will seal just fine. We have never had a problem with front cover leaks.