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need help quick! How do those adapter plates work? Chevy TH350 to caddilac 500.......

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Old Dec 13, 2000 | 10:55 PM
  #1  
ChrisFormula355's Avatar
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From: Tucson,AZ,USA
Car: Junk
Engine: Junk with nitrous
Transmission: Junk with gears
need help quick! How do those adapter plates work? Chevy TH350 to caddilac 500.......

I blew the BOP TH350 tranny up in my Grand Prix, I know it was only a matter of time, but I'm SUPER strapped for cash right now, and my friend gave me a FREE TH350 replacement tranny, only problem is its a CHEVY th350, the caddillac motor in my Grand Prix has a Buick Olds Pontiac bellhousing pattern on it. But...summit sells an adapter plate to use a BOP engine with a chevy tranny...but they have no idea how it works and they don't know any details...does anybody know how these work?? do i need to buy anything else besides the adapter kit???? Its $54, so if it works I'll have my grand prix running again for one days work in tips (pizza hut )

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Nice car: 1988 Formula 355, mildly ported/polished Vortec heads, RPM intake, Comp Cams Extreme 268 cam, 650 Holley double pumper, 5-speed/3.73 Richmond gears, and N02 on the way
Old 1/4mile: 13.5@105mph

Evil Car: 78 Pontiac Grand Prix, 500inch caddy motor, edlebrock intake,HP Holley 750 DP race prepped carb, B@M TH350 tranny, 16inch Iroc-Z rims, blacked out chrome, soon to run 10's...

There's no replacement for displacement!
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Old Dec 14, 2000 | 09:41 AM
  #2  
RB83L69's Avatar
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From: Loveland, OH, US
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Transmission: 5
They have flat-head countersunk screws that fasten them to the engine, and tapped holes for the trans bolts. Usually there has to be a spacer somewhere in the moving parts as well, to take up the extra room.

People are dying for Chevy case 350s... if I were you, I'd call the local trans shops and offer to trade a Chevy core for a ready-to-run BOP unit, and see how far I could get that way... as always, trying to cheap out by "using what you've got" even when it doesn't fit will cost you more than doing it right...

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"So many Mustangs, so little time..."
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Old Dec 14, 2000 | 03:59 PM
  #3  
Bort62's Avatar
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hmm,Ppl really want Th350's eh ?

I got one sitting In My garage



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