GTB 5.9 Cummins swap

Gregkoch · Oct 29, 2023

I'm doing a first gen 5.9 cummings swap in my 1954 GTB. I'm trying to find a trans adapter plate. I was told the m670 has the same Trans bolt pattern.

MMG1954 · Nov 3, 2023

Yes the G and that have the same bellhousing pattern

fdt860 · Nov 8, 2023

(quoted from post at 19:23:32 10/29/23) I'm doing a first gen 5.9 cummings swap in my 1954 GTB. I'm trying to find a trans adapter plate. I was told the m670 has the same Trans bolt pattern.

I think that If you do not like the MM engine, maybe a big block is better sizewise, a Cummins 505 (8.3L) should be close in size to the GTBD Block. Or maybe, even an L10 or a NA855 would fit right in there. But you can do as you want, I just think it will look like a baby engine in there.

SWMolines · Nov 26, 2023

(quoted from post at 19:23:32 10/29/23) I'm doing a first gen 5.9 cummings swap in my 1954 GTB. I'm trying to find a trans adapter plate. I was told the m670 has the same Trans bolt pattern.[/quot

Here is a plate

https://www.facebook.com/marketplace/item/302390779289368/?ref=search&referral_code=null&referral_story_type=post

GTB 5.9 Cummins swap

Gregkoch

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MMG1954

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fdt860

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SWMolines

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