351 Cleveland versus 351M identification

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hotrodr
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351 Cleveland versus 351M identification

Post by hotrodr » Mon 13 Jul 2015, 19:49

Hi could someone possibly help me - I have a bought an80's Bronco and was wanting to know if it was a 351 Cleveland or a 351 M motor - apparently they came spec'd with the 351M but it was sold to me as a 351C and was wanting to know if there was any easy ways to tell the diff visually without having to pull it apart .

Thank you in advance

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FPT
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Re: 351 Cleveland versus 351M identification

Post by FPT » Mon 13 Jul 2015, 20:08

"M"??

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jlebenon
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Re: 351 Cleveland versus 351M identification

Post by jlebenon » Mon 13 Jul 2015, 20:21

351m has a metal rib on the right of the distributor 351c is flat ... I've never used a M but remember being told
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Waterhond
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Re: 351 Cleveland versus 351M identification

Post by Waterhond » Mon 13 Jul 2015, 20:29

If the distributor mounting hole is even with the front mounting surface of the intake manifold, then you have a 351C. If the mounting hole is deeper into the block, then it is a 351M. The front inner corners of the cylinder heads are also raised above the distributor hole on the M vs the C.

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jlebenon
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Re: 351 Cleveland versus 351M identification

Post by jlebenon » Mon 13 Jul 2015, 21:11

If this helps
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2006 lumina ute
1973 El camino 353ci

hotrodr
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Re: 351 Cleveland versus 351M identification

Post by hotrodr » Mon 13 Jul 2015, 21:46

Thx a mill for all the help and thx for the pics JL def helps and seriously hope it a Cleveland and not the M series - have boat loads of Cleveland spares and not sure what or if anything will be compatible.

Thx once again

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jlebenon
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Re: 351 Cleveland versus 351M identification

Post by jlebenon » Mon 13 Jul 2015, 22:02

Cleveland spares will sell pretty fast if you can't use them ....
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colin davids
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Re: 351 Cleveland versus 351M identification

Post by colin davids » Thu 16 Jul 2015, 09:27

AFAIK the 351M/400M has the bigblock bolt pattern on the bellhousing.
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