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Old August 10th, 2007, 05:25 PM   #38
Yetti
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Quote:
Originally Posted by oilburner350 View Post
460s up until 1979 were internaly balanced. I had to use a 390 or centerforce flywheel with my 1971 460. I chose the centerforce (40.5 lbs).

When I junked my knocking 400 in my bronco, I gained about 1.5mpg with the 460. Although 10 is nothing to brag about.

You have to watch out on some 400s from the junkyard. The 1972 400 (or what ever the first year production was) had a small block bell housing.

To answer the question BB or SB, it's neither. It's a 335 series Ford engine. The 370/429/460 was the 385 series. The 330/352/360/390/406/410/428 was the FE series (Ford Edsel). Confused yet?

I am wondering where you found your facts?
some of what you posted is flat ass wrong.

460's are EXterally balenced always have been since `68. the 429's came as Interally balenced. the Boss 429 could be ordered either way or not at all.

last I knew 390(fe) flywheels didn't ever mount to a 429/460 engine, secondly they are internally balenced. which wouldn't work on a 460 anyways. also the dia. of the flywheel is wrong. if I remember right the 429/460 used a 142 tooth wheel. the 390/428 used a 136 tooth. now I can beleive you used a 428 flyweel on a 390 or vise versa, but the 385 series engines parts didn't interchange.

by the way out of the engines you listed under FE the 410 is the only one thats is externally balenced and it never came as a standard trans. I had to make a flywheel for one once.
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