351 Cleveland versus 351M identification

[hotrodr]

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

[FPT]

"M"??

Clevo has top intake water hose, Windsoer has front intake water hose on top.

[jlebenon]

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

[Waterhond]

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.

[jlebenon]

If this helps

[hotrodr]

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

[jlebenon]

Cleveland spares will sell pretty fast if you can't use them ....

[colin davids]

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