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BB and SB motor\tranie mounts same?

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Old 08-10-2005, 12:39 PM
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ImBatman
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Default BB and SB motor\tranie mounts same?

Are the mounts for my 454\M20 the same as those used in an SB\4spd? I was looking on Summits site and they only reference SB Prothane mounts.

Thanks
Old 08-11-2005, 08:23 AM
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ImBatman
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So there is not one person on this forum that knows the answer to this question. Boy this forum has changed in the last year or so or was it just when the decision was made to split.
Old 08-11-2005, 08:38 AM
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kettererhouse
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Originally Posted by BlackRat
So there is not one person on this forum that knows the answer to this question. Boy this forum has changed in the last year or so or was it just when the decision was made to split.
Im not 100% on this but, I think your tranny mounts are the same and motor mounts are differant? And this may be one for the tech side.
Old 08-11-2005, 08:54 AM
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fl_rider
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Default According to Advance Auto....

The part number (2249) is the same for the SB and the BB
Old 08-11-2005, 09:52 AM
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pws69
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Originally Posted by BlackRat
Are the mounts for my 454\M20 the same as those used in an SB\4spd? I was looking on Summits site and they only reference SB Prothane mounts.

Thanks
From what I have read in several places, the mounts are the same but on a Big Block with A/C, there is mention of spacers that are used with the mounts. However, I have no first hand experience.
Old 08-11-2005, 07:08 PM
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Razorhorn
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Just swapped out my SB400 for a BB540. Exact same motor mounts.
Old 08-12-2005, 10:28 AM
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Hammerhead Fred
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Just purchased new motor mounts for my BB and installed them last night. Napa couldn't find BB motor mounts in their system. Checked several vendor web sites and all of them list only one part number for 70-82 motor mounts (pre 70 is different). Went back to NAPA and got the 350 SB motor mounts and they bolted right in. $12/ea. (rubber not solid). Replaced the tranny mount this spring and it's also the same as the small block for all manual trannys from 63-82.

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