4 vs 5 quart oil pan fitment?

[6T7 C10]

Hello everyone.
Been a fan for years and am restoring an old crusty but stock 67 C10. I am putting together a L31 5.7/350 small block for it. Looking at stock type oil pans at a popular online parts website and I am seeing a 4 and a 5 quart capacity oil pan (not including the filter capacity). Will the 5 quart pan clear the crossmember and fit okay? The 5 quart pan is only about 1/4" deeper at the rear but in the middle has a much steeper angle.

[hayhauler71]

I use a Milodon 30401 6 qt pan in my 71 small block no clearance problems on cross member . This pan is 8 1/2 sump. http://www.milodon.com/new-images/30401.GIF

[6T7 C10]

Thank you for the information and example. Just what I needed to know.

[James the III]

Any reason you don't want to use the truck pan on it?

[kwmech]

The big block in my 68 takes 8 quarts on an oil change. I used a late model oil pan I had sitting around. That's what it came out to.

[James the III]

Originally Posted by kwmech

The big block in my 68 takes 8 quarts on an oil change. I used a late model oil pan I had sitting around. That's what it came out to.

his is a sbc..

the truck pan on a l31 is 5 quarts total including filter..
so 4.5qt pan and 1/2 qt in filter..

I don't remember if the 3/4 ton vortec with 4 bolt mains got a bigger pan or not..

[garyd1961]

Originally Posted by James the III

his is a sbc..

the truck pan on a l31 is 5 quarts total including filter..
so 4.5qt pan and 1/2 qt in filter..

I don't remember if the 3/4 ton vortec with 4 bolt mains got a bigger pan or not..

I believe they are the same. I made my own dipstick out of several different tubes and sticks I had so I'm not 100% mine is reading correct but I run 5 qts in my 3/4 ton L31-R.