383 Oil pan Part #
If you get that pan make sure it is that exact part number, and not one that states it fits a SBC or 3rd gen f-body. Those pans will make contact with either the steering rack or k-member.
There have also been reports of problems with the windage tray on the Canton regarding filling it full to its 6qt capacity and having windage issues. This happened to me running a 3.875 crank as well as a couple of other members running stock cranks. One person, and myself just run 5.5 quarts instead and it's fine. The other put a Moroso windage tray into the Canton pan and has had no issues.
you can use either the 3 stock extended studs or Miloden makes them. Don't know if ARP does.
just put 1/8" washers between studs & oil pump & windage tray to raise it away from crank. you can use a stock pan. confirm clearance of rotating assembly and pan as some slight clearance may be necessary. My #2 rod bolt just "scraped" the bottom front of pan. I put the pan on motor while on stand without pan gasket and had a friend rotate motor by hand while I held my ear to bottom of pan. There was a slight scrape on pan from #2. with a gasket it cleared but I just put pan on a thick folded towel and used a wooden baseball bat (big end) to push pan bottom out slightly from inside. Not talking about beating on it, just a little push from the inside was all it needed.
Depending on your rods, you may need a pan dimpled along the rails for rod bolt clearance.
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If you kept your bearing clearances on the tight side, 0-10 Royal Purple is another 5. Some guys run it all the time. I use 6 qts of 5W20 in "bracket mode".
If the tray slows a car down I would have to guess it is an aerodynamics thing restricting the air moving around behind the pistons.
I think Mike raises a very real possibility that windage control issues may depend as much on the crank shape as the tray or pan. I have seen windage issues on an LT1 when assembled without the factory tray, but at the same time can believe what Ed is saying abut some applications being faster without the tray, and this would go a long ways towards explaining why some guys have issues with the Canton setup while some don't. The guys that don't might just have a crank and rod combo that is aerodynamically cleaner. Mike did a good job of coming up with an idea that takes everyone's observations into account rather than just blindly dismissing anyone who didn't see the same he did.
I have known David for forty years, and Bruce for several. They know more about race engines than anybody I know, and they test everything. I buy some of my engine parts from them, and have never been steered wrong by advice I have gotten from one of them.
I don't want to try and take a big sweeping onramp under power with 4 quarts in the pan and risk having too much get stuck by g-forces under the outside valvecover and starve the pan.
.....unfortunately I left my clearances a bit loose, so I've got some heavier oil in it, going to go one step thinner it should be fine I never street drive it anymore anyway.......what I did do was put a few holes in the top of my windage tray to help drain back, I read the same articles ed about the tray just slowing the drain back down.... 







