Bellhousing for top mount starter?
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Bellhousing for top mount starter?

  1. #1
    Head Janitor FormulaZR's Avatar
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    Default Bellhousing for top mount starter?

    Hey guys, just wondering what my options for bellhousings are.

    I need a bellhousing for a SBC to fit a top mount starter. The engine is mounted with motor plated, so I do NOT need the bellhousing to do anything other than cover the flexplate and hold the starter. Also, my motor plate is about 3/8" thick; so I need that factored in for the starter spacing.

    Ideally, it'd also use the driveline cover I already have.


    What are my options?


    "No, my boat doesn't need any more power" - No one ever

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    Quote Originally Posted by FormulaZR View Post
    Hey guys, just wondering what my options for bellhousings are. I need a bellhousing for a SBC to fit a top mount starter. The engine is mounted with motor plated, so I do NOT need the bellhousing to do anything other than cover the flexplate and hold the starter. Also, my motor plate is about 3/8" thick; so I need that factored in for the starter spacing. Ideally, it'd also use the driveline cover I already have. What are my options?
    good luck with that!...i personally have never seen one for a SBC...maybe the SBC gang has one laying around or suggestions ...just sayin' FastRat

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    Head Janitor FormulaZR's Avatar
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    I believe SBC and BBC would use the same bellhousing/starter, wouldn't they?


    "No, my boat doesn't need any more power" - No one ever

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    Senior Member H20MOFO's Avatar
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    Maybe there are different types of set ups. With my top mount deal the bellhousing didnt suport the starter at all. There was a seperate starter stand that had to 1/2" bolts(i think) and one smaller bolt kind of on top...was a lightning set up. The back plate was 1/2" thick and threaded for the starter stand bolts...if that makes sense.
    Another Hot Boat refugee

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    Head Janitor FormulaZR's Avatar
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    Quote Originally Posted by H20MOFO View Post
    Maybe there are different types of set ups. With my top mount deal the bellhousing didnt suport the starter at all. There was a seperate starter stand that had to 1/2" bolts(i think) and one smaller bolt kind of on top...was a lightning set up. The back plate was 1/2" thick and threaded for the starter stand bolts...if that makes sense.
    Do you have any pics of your Lightning setup?


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    Quote Originally Posted by FormulaZR View Post
    I believe SBC and BBC would use the same bellhousing/starter, wouldn't they?
    i dont know for sure, but, if thats the case, there are a couple of top mount starter bellhouseings for sale in the Parts Forum...just do a search & take a look at them ...just sayin' FastRat

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    Senior Member H20MOFO's Avatar
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    Quote Originally Posted by FormulaZR View Post
    Do you have any pics of your Lightning setup?
    I will se if I can find an old one an edit a pic in....dont have it anymore. I got frustrated with the inability to shim away(up and down) like you have with a bottom mount. Was always too tight.....put on some offset dowles and got it perfect.....then replaced my flexplate after that and it was too loose...then I gave. In hindsight....aparently if I would have replaced the flexplate 1st I probably would have been golden. I had some issues with a certain top mount starter company also....but thats another story.
    Click image for larger version. 

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    Click image for larger version. 

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    This is what a starter stand looks like...just dug this out of a corner of my garage.lol
    Another reason I 86'd mine was for clearance. After I glassed my transom back in from the guy before me....I barely have an inch for my ski tow. =)
    Last edited by H20MOFO; 07-05-2011 at 06:50 PM.
    Another Hot Boat refugee

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    Senior Member steveo143's Avatar
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    Quote Originally Posted by FormulaZR View Post
    I believe SBC and BBC would use the same bellhousing/starter, wouldn't they?
    Both SBC and BBC use the same bellhousing.
    steveo143 AKA DiMarco 21 II



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    Quote Originally Posted by steveo143 View Post
    both sbc and bbc use the same bellhousing.

    bingo!
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    Head Janitor FormulaZR's Avatar
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    After some research, it appears that none of the bellhousing with top mount starter provisions are designed to work with a motor plate, except Lightning's which uses their motor plate. Does anyone know if there is one that will work with a 3/8" thick motor plate?


    "No, my boat doesn't need any more power" - No one ever

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    Head Janitor FormulaZR's Avatar
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    Also, could anyone help me out with a measurement? What is the distance between the bellhousing "face" of the block and the front of the flywheel on a SBC or BBC? I'm asking because the flexplate of my LS1 is dished compared to a traditional SBC flexplate - so I'm wondering if there are going to be some differences in trying to get a top mount to fit correctly. If you are running a motor plate, I'd be happy with the distance of the motor plate to the flexplate plus the thickness of your motor plate.


    "No, my boat doesn't need any more power" - No one ever

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