Does anyone know the stock depth of a c4 700r4 pan? I can check mine in spring, but figured some1 might have the info or a pan handy. Anyways I was looking to buy a pan and useally go with stock depth cast alum finned, because I don't like the idea of bottoming out my pan. But then I saw that there are two stock depth pans. 2.4" and 2.9" I guess the 2.9" is used on trucks and suvs and holds 1 more qrt.

I'll buy a 2.9" either way just kinda curious now.

http://www.asaperformance.net/servle...luminum/Detail

 

First you mention you "usually" opt for "stock" and then you mention this time the deeper. Either choice just make sure you use the "compatible" filter. I don't understand the "polished" and I don't believe the pan you linked is actually finned. Don't know! If there's no specific need for the + capacity I don't see the value and I'd probably be concerned with maybe the quality from the source. Where's it sourced from? I'll NOT guess.

 

Whoops it's 2.5" not 2.4"

Yah I planned on tack welding .4" spacers into the bottom of the pan so I could use a good TCI filter and not just the stock longer neck truck filter. Don't care for the polished either, cast ruff is more surface area and surface area is more heat dissipation, just like those rounded fins. But I can fix that with some sand paper or another method. Still the stock steel pan is pretty smooth so I don't see it being any worse since alum dissipates better than steel and the pan surface would already be larger even w/o the round fins if it was .4" deeper.

I've read/looked into some about truck pans being factory deeper and having longer neck filters, as mentioned earlier, but I've not seen it in person. If you compare diff 700r4 stock alum pans offered on ebay that one looks taller and they have both. Also I own a 2.5" cast alum pan I got for my Trans Am 700r4, but I'd rather not rob the pan on a fresh trans.

Sides it's a cheap mild upgrade when I already plan to drop the pan for new filter n fluid. If it wasn't cold and crappy weather I'd go measure my c4 pan as well as a stock 700r4 camaro pan and my 700r4 truck pan. Maybe all stock pans are 2.9" idk, even if so I'd buy the 2.9 alum and use it over a stock pan.

http://www.ebay.com/itm/GM-700R4-Aluminum-Transmission-Pan-Trans-4L60E-4L65E-Fits-Sbc-Bbc-Chevy-700-R4-/141126172054?pt=Motors_Car_Truck_Parts_Accessories&hash=item20dbc67d96&vxp=mtr#ht_454wt_1120

 

I'm using a 4l65 pan on my 4l60e (same as 700r4). It's a little deeper and has a built in drain plug. Here's not a good picture.

 

That one sure looks a lot like this guy:



I paid $19.95 for mine from Amazon a few years ago. It is steel, though. I got it just because of the drain plug. Makes changing trans fluid a LOT less messy.

It does have one drawback: I have to swap the stock pan back on to avoid scratching up the chrome with the trans jack.

 

Yah drain plugs are nice and changing at least most of your fluid more often is easier.

 

read somewhere that one must be careful of larger pans because of ground clearance issues. speed bumps and such. don't know for sure, just passing it along.

 

Yah my buddy had an 84 bout tens yrs ago and put a deep oil pan on it and that pan scrapped on everything. Kinda why I prefer stock or just +1 qrt (.4") vs all the deep aftermarket pans that can be more than 1" deeper and have cooling fins that stick out far.

 

Ok finally got around to my pan swap, taking a break and took some pics.

The new pan looks a bit extra taller than the .4" cause it has fins on the bottom and the corvette pan is less than 2.5" inside depth more like 2.3-2.4". The stock pan is beefy and heavy, more than any stock pan I remember and I've pulled a 700r4 truck pan before(still idk maybe it's just me). You can see the TCI filter/gasket(part # 378500) I bought has extra neck length and I should not need to add the pan tabs to support the filter. I am not sure what the extra o-ring is for, maybe the 4L60? I also noticed the filter is also a top feed.

 

The black o-ring was on the neck in the packing material and pretty much all the way down. Either it's an extra seal or maybe it's used to set the inserted depth for when you use a bit deeper pan like mine so that the filter is nice and low in the pan. I ask the manufacturer and hopefully I hear something back.

 

Ok got it on and here is some pics. From the side straight on you can't see it, so it's not lower than the floor board. The front is the lowest part and the pan is noticeably lower. I think it'll hold more than just one more qrt. It's hard to get a decent picture of what I am seeing but when I look at it from both sides as straight as I can, I can maybe see the tip of the front. Still I bet most aftermarket exhaust is lower than this pan. I also plan to put a bit lower oil pan on it, that is used on C4's.

 

Also I should note, the orange o-ring needed to go down the filter neck about half. I just used the magnet from the orig pan on my open vise and pressed it down to where I needed it. FYI I am pretty sure this filter will not work with the stock pan. I inserted it as far as it would go w/o the o-ring and did a ruff measurement from the pan rail too the end of the filter and it just clears the new deeper pan.