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Size Does Matter

Started by Guest_broncgirl_* , Feb 15 2004 11:58 AM

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4 replies to this topic

#1 Guest_broncgirl_*

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Posted 15 February 2004 - 11:58 AM

I just got a new (not really) 78 bronco. I was told by the chick who sold it to me that it had a 400 in it, but I dont think so, I think it's bigger, :)>-

how can I tell?

#2 bob

It's Only Money, Right?

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40 posts

Location:western pa zelienople

Posted 15 February 2004 - 03:36 PM

0ne quick way is firing order;

351 and 400 1-3-7-2-6-5-4-8

302, 360,390,460 1-5-4-2-6-3-7-8

#3 Txquadhunter

F-Series Maniac

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241 posts

Location:N. Texas

Posted 15 February 2004 - 03:53 PM

just by looking it's hard to tell a 351m/400 from a 460.
count the bolts on the valve cover is a sure way
351m/400 has 8 bolts holdin the cover on.
302/351w 6 bolts
460 7 bolts if i remember right.

http://community.web...r/txquadhunter/

#4 Guest_Guest_*

Guest

Posted 29 February 2004 - 08:07 AM

First place to look would be the valve covers for the engine sticker. Barring that, altho the 351M-400 and 429/460 are similar, there are some differences. The 429/460 is wider and to fit in a 78/79 has to have either headers, truck manifolds or the right rear frame notched for the car manifold. I would bet that its probably a 400 as that and the 351M were the only two motors available in those years.

-Breeze