What's The Difference Between BOP and Chevy TH350 ?

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Tynan918

Royal Smart Person
Aug 2, 2021
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I think I have either a BOP TH350 or BOP TH350C behind my 305 SBC in my '84 Monte Carlo, and not the Chevy TH350...fluid pan is that of a TH350, but the top of the bell housing looks different...
IMG_20220623_231741232.jpg


It isn't pointed at the top like most TH350 I've seen, removed, bought, and installed before...looks to have bunny ears...

Screenshot_20220624-011031-764.png
 

ELCAM

Royal Smart Person
Jun 19, 2021
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That is a universal TH 350 case. As far as I know all TH350c variants came with the universal bellhousing.
 

Ribbedroof

Comic Book Super Hero
Supporting Member
Jan 4, 2009
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Wellston, OK
That is a universal TH 350 case. As far as I know all TH350c variants came with the universal bellhousing.
Nope. My 81 wagon's original was a chevy-pattern 350C. Maybe they moved to universal cases only sometime after that, though
 
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olskool

Apprentice
Sep 26, 2021
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us builders called them a multi case, it will bolt up to all GM engines. and no the C / lock up unit came in all bolt patterns. the non L/U came in all configurations also,,,,,,,,,,,,,
 
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