I am installing a Vortech kit and was wondering what everyone's thoughts are on using a bulkhead fitting in place of tapping the oil pan. I measured the thickness of the oil pan to be about 0.22 inches after grinding down the cooling fins. This would only allow for 3-4 threads worth of engagement. With this small amount of thread engaement into aluminum it seems that one small impact from anything would destroy the threads, leading to leaks.

I would think that using something like this with two brass washers would be much better.
http://store.summitracing.com/partdetail.a...15&autoview=sku

My thoughts are 1.)One less step no tapping, 2.)Better seal, 3.) More robust since the nut and washer will spread the load over a larger area.

 

You will have to have perfectly parrellel and flat surfaces to get a good seal. I would just drill and tap, there is enough material to grab onto.

 

Consider welding if you are concerned about thread engagement. Bulkhead fittings are designed for smooth parallel surfaces.

regards,
-- Chris

 

By welding do you mean to weld the fitting to the pan or add more metal to the pan so that there is more thread engagement?

 

Either, most people weld on a small peice of threaded pipe.

 

Weld on aluminum fittings with male AN flares are available from seevral manufactures including XRP. Weld directly to pan to keep things simple.

Cheers,
-- Chris

 

When I did my install I welded a fitting on my oil pan. But ended up welding it closed and tapping my girddle, in the car. Thank goodness for right angle drills.

 

This is how its done in a secure way.

 

I've been thinking about welding one of these oil baffles for the extra insurance.

located here: https://www.s2ki.com/forums/index.php?showt...&#entry15769798

I'm debating to trim an inch off where the AN fitting is welded... or if it will even make a difference...

 

why not put an oil return on the girdle?