Great Lakes 4x4. The largest offroad forum in the Midwest - View Single Post - 78 ford 400. BB or SB?
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Old May 23rd, 2007, 11:28 AM   #5
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i disagree, those motors ran forever.

you'll have to change the exhuast also which isnt easy cause car manifolds run into the passenger side frame. The torque converter snout is a different size going from a 400 to a 460.
It's really a small block with a big block bellhousing bolt pattern. They take the same size pistons as a 351 cleveland except the wrist pin is a different size.
351m and 400 heads are identical, the only difference between the 2 is the crank and pistons.

Last edited by TurdBronco; May 23rd, 2007 at 11:33 AM.
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