You don't have to spend over $100 on a pump. The Melling Select pumps that I have mentioned before are only in the mid-$60 range.

Here's a list of all the Melling Select pumps on Jegs, I'm sure you'll find them all on Summit for a similar price if you look: http://www.jegs.com/webapp/wcs/store...0002_751586_-1

Also, check to make sure that shaft will fit in a stock 400 block. Some of the aftermarket shafts require machining of the block before you can use them, and some don't.

- Justin

my oil pan is larger then 8 inches deep, its 8.250 the biggest of melling select is 8...

you should be fine as long as you don't let the motor run low on oil. That's the setup I'm going with.....8 1/4" deep pan from moroso with a melling select pump.

- Justin

you are 3 days to late man I returned the other oil pump and my xe262 k kit and then i ordered a new oil pump from summit, with a drive shaft and an arp bolt and a tranny cooler. But it does make since, since my pan is 7 quarts

What pump did you end up getting?

- Justin

im pretty sure i got the same one i had before only in a moroso box..

i talked to a moroso tech and he insured me that none of their oil pumps use the new desighn from melling, but its got the same casting number m55hv..

I'm willing to bet that the tech is full of crap. I hope you got his name and number so you can call him back and scream at him when you get one of the new casting designs.

An M55 is an M55.......

- Justin

well, I sure as hell am not paying shipping to return this part. and I guess ill be getting that 8 inch melling select :rofl:

http://i13.photobucket.com/albums/a2...Picture085.jpg

the pic is full of crap but it says heavy duty casting.
http://i13.photobucket.com/albums/a2...cture087-1.jpg

M55 is not the casting number damn it , its the part number the casting number is else were on the pump... M55 is the typical PART # for small block Chevy's and 4.3l V6s... that one should work fine...its an M-55 High Volume pump. I've sold a few of them in my time at advance auto...actually they have both the M55 and M55HV IN STOCK

i think I am ok, The new morosso is the one on the left.

Yea, looks like you are ok. Lucky you.....

- Justin