What oil pan are people running with the GEN V and VI motors??
Motor Mounts?
thanks
Mike
This is going to be a huge post, but I hope it helps you and others.
GM has a pan kit for the GEN V & VI motors that is styled like the older 5 quart (6 w filter) Chevelle/Camaro pans. The pan that usually comes on 502's and most other newer motors is very similar to the older 6 quart (7 with filter) Corvette / truck pans.
On my old 427 I run the large truck oil pan which is the same design as the L88 corvette pan. The only difference between those is the internal baffle is a little better on the Vette pan and the drain plug is in another spot. My truck pan has it at the rear vs. the L88 pan having it on the side like other car pans. I personally like the rear placement since the front is usually higher when you change oil so I'm more likely to have better drainage. I also use GM windage tray and studs along with a Milodon pan baffle that goes at the pump and keeps oil from climbing up the back of the block on hard launches. I'm seriously considering swapping the stock style windage tray for a Milodon curved screen one and adding a Moroso crank scraper.
All that being said, my engine isn't positioned normally, but it's pretty close to stock. Way back when I swapped to a big block, no one around come give me any advice or help on the swap. I had a 396/TH400 out of a 1965 Impala SS and a when we tried to lower it in, the 65 Impala style pan hit my 61's crossmember and needed to be raised about a quarter of an inch. That pan had a "stepped" sump. Whereas all the other factory big block pans make a gradual slope from the front to the bottom sump, this one sloped down then leveled off for a few inches and then sloped down again. The only other oil pan I had access to was a huge one off of a dump truck or some other medium duty truck. I think it was supposed to be 9 quarts or something and looked like a regular stock pan and one of those full sump dragster pans had a baby. LOL It was out of the question.
We ended up scrounging some frame mounts and motor mounts that were out of a later Chevrolet. I don't even know if they are from a truck or car since they were already lose and laying in a pile when I found them, but they look just like the type that is used in pretty much everything Chevrolet built during the 70's and 80's. We positioned the motor to where the pan and the 65 Impala exhaust manifolds fit and marked that location for the mounts. They are just bolted in and not welded, so it's not permanent. After the motor was positioned, we cut down the original transmission crossmember and added new tabs for it to locate the TH400.
Over the years I've had 3 other big blocks in my 61....and swapped the manifolds out for hooker super comp headers, but left the motor mounts alone because they worked with my modified transmission crossmember.
I've been planning for years to go back to the original small block mounts and the Show Cars TH400 crossmember that Models sold me, but now that I'm at that road again......I am leaning towards keeping it mounted the same so I can keep the larger pan and windage tray. It's either that or spend about $250 for an aftermarket pan (probably Hamburgers or Jegg's relabeled one) that have a windage tray and crank scraper built in and I just don't think it would be any better than my current setup + a crank scraper and screened tray.
When I put a big block & Muncie in my 62, I just used the common Chevelle/Camaro style pan and the normal X-frame small block motor mounts and frame stands. Everything bolted up just like stock with those parts. I can confirm that the Vette/truck style pan will not clear with the regular small block mounts.....therefore it's HIGHLY doubtful the pan the 502's come with would fit. The smaller oil pan kit GM has for the Gen V / Gen VI also comes with a dipstick/tube, and oil pump pickup (last time I checked) but the descriptions say it will not work with the Gen 5/6 windage tray and studs. It might come with 4 main bolts to replace the W.T. stand-off main bolts, but if not you'd need to get some. Gen V / Gen VI main cap bolts and windage tray studs are a slightly different length than Mark IV parts. I can't remember if they are longer or shorter....just that they are different.
Since you are planning on staying with a manual transmission there is no way I'd consider changing the mount style since it will effect everything with your clutch linkage/Z-bar/etc.