Stroker Oil Pan
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Mountain Pass
Joined: Feb 2017
Posts: 242
Likes: 17
From: OH
Could your define reasonable? Ive looked at a couple pans and there are ones that specifically say "not for 400 ford" and id really like to stretch the stroke past the 4.35" mark probably close to the 5" mark
Cargo Master
Joined: Oct 2020
Posts: 2,673
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I do quite a few 4 inch stroke Cleveland engines and with a 2.100 Chevy rod journal and an aftermarket rod there is about an inch to the pan rail. I guess an aftermarket pan could have a baffle that's closer than that to the assembly. I think that where you'll run into a problem is at the bottom of the cylinder. With a Scat 7/16 bolt I beam rod I don't have to grind with a 4 inch stroke but if you went much more, maybe 4.250 it would probably start to hit on some blocks. 5 inch and i think you'd be in the water. The deck height on a 400 is 10.300 which is the same as on a 460. On those engines a 6.700 rod 4.750 stroke is as long you can go. Maybe on the 400 the bottom of the cylinder is closer to the crank centerline and you could shorten up the rod for a little more stroke but then balancing is going to get very expensive.
Probably where the not for 400 stuff comes from is on a Chevrolet. A 400 uses a different oil pan and oil pump driveshaft than a 350.
Probably where the not for 400 stuff comes from is on a Chevrolet. A 400 uses a different oil pan and oil pump driveshaft than a 350.
Cargo Master
Joined: Oct 2020
Posts: 2,673
Likes: 780
Maybe. But I don't think that the pan rail will get in the way very easy. The pan rail is 9 inches wide on a Cleveland which is the same as a 460. Using a BME 426 forging I have to grind the pan rail a little bit on my monster truck engines with a 4.500 stroke but none at all with a 396 forging.
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Madmike33
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
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Mar 18, 2005 07:45 PM
