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rear sump oil pan

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snuff98
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mitch huested
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Post  mitch huested August 19th 2021, 4:16 pm

Hey everybody, I'm looking for someone who knows of a rear sump oil pan for F-100 and F-250 two-wheel-drive truck in the '73-'79 years. No one seems to be able to give me a "for certain" answer. The Canton 15-774 looks like it will work, but Summit says it won't while Jeg's says it will! So now i'm here asking the experts. Thanks in advance for any help you all can provide,

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Post  Mark Miller August 19th 2021, 11:29 pm

What about the Ford Racing 397-M-6675-A460 Rear Sump Oil Pan for the Fox Body 429-460 Swap will that work IIRC it's a Truck Oil Pan but don't remember what year trucks!!

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Post  norm August 20th 2021, 10:54 am

I don't have a 2wd so i'll ask what is under the engine? A crossmember or something that would be in the way of the sump on the pan in the rear?

4wd's have quite a bit of room and even moreso when lifted.
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Post  gt350hr August 20th 2021, 11:05 am

I have a '74 and a '78 F350 and both have 460s and both have front sum pans. There is plenty of clearance for a stock depth pan. A rear sump pan "might" run into the back of the cross member. The '74 pan has a longer sump and holds more oil. The sump length is similar to a Boss 429 but there isn't a baffle in it.

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Post  snuff98 August 20th 2021, 1:14 pm

Its the steering! Those trucks steer from behind the axle putting all the stuff where the pan should be. 4x4 half ton trucks steer from in front of the axle.

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Post  jasonf August 20th 2021, 9:10 pm

Those trucks in 2wd use a front sump pan that sits right over the cross member as the steering linkage is behind the wheels. In 1980 they switched it up and those trucks use dual sump or mid sump pans.
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Post  stanger68 August 20th 2021, 10:07 pm

My 75 2wd came with front sump also.

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Post  mitch huested August 20th 2021, 11:17 pm

Thanks for the interest friends! My main reason for wanting a rear sump pan is due to the engine and the expected launch of this truck. I know it weighs a lot, but my engine will move it out anyway. It's a 557cid, 10.2:1 compression, monster on nitrous. Block is "cemented" halfway up the jackets, with 249/254 @.050 cam, Aluminum heads ported and polished. Lunati forged 4340 crank and rods with ATI dampener and SFI flexplate in front of a Hughes C6 with trans brake. Nitrous kit is dual stage 250/400 shot.
BUT my other main reason for a rear sump pan is the MESS that inevitably happens when changing the oil using the front sump pans, as they always drain right onto the crossmember! I've owned 2 trucks in the 73-79 range and they always make a huge mess changing the oil. Those of you who have the front sump pans know what I mean. Currently i have a 7 quart front sump pan that is stock for "trailer specials", and yes still messy.

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Post  norm August 21st 2021, 9:38 am

Why such a small cam?
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Post  Paul Kane August 21st 2021, 1:40 pm

mitch huested wrote:...My main reason for wanting a rear sump pan is due to the engine and the expected launch of this truck.
Weld a horizontal slosh baffle across the rear half of the front sump.


mitch huested wrote:....my other main reason for a rear sump pan is the MESS that inevitably happens when changing the oil using the front sump pans, as they always drain right onto the crossmember!
Relocate the drain plug to either side of the rear corner of the sump (do this before welding in the slosh baffle)


If you still want a 1979-up F250 pan & pickup I have plenty of them.
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Post  dfree383 August 21st 2021, 1:47 pm

norm wrote:Why such a small cam?

Not everyone’s a HeRo......😂😜
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Post  mitch huested August 21st 2021, 3:46 pm

Hey Norm, the lift is .637 on the cam, but wanted to keep the duration down a bit so I would be able to hit the main powerband(2400-6600 advertised) quick enough to not bog off the line. Also, this is @ .050, the advertised lift is 292/300. Launch will be at 3200rpm with a shift somewhere around 6500(twin 200lb. weight bars in back). Nitrous kicks in at 3500.

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Post  norm August 21st 2021, 6:45 pm

Just seems with 557 cubes you could have gone bigger and still be able to get off the line.

I would think that would be a small cam for a 460 personally.

Heroes notwithstanding.
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