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Old 03-28-2004, 03:38 PM
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bonneville Joe bonneville Joe is offline
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Ok, here is the deal. Went and looked at a pair of motors this morning, one a 400 and the other a 455. Just got home from looking at a 1987 GTA Hardtop with some older 350 chevy smallblock. Now obviously what I want to do is put the 455 in the GTA. What all is involved with making this swap? I think Id have one sick ass car on my hands. Help, quick, both the car and the motor are advertised in local papers.. I bet I can get the car cheap and the 455 is a longblock with a TH400 hooked to it. I think Id probably order the adapter from Jeg's and keep the 700R4 though.

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Old 03-28-2004, 03:38 PM
bonneville Joe's Avatar
bonneville Joe bonneville Joe is offline
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Ok, here is the deal. Went and looked at a pair of motors this morning, one a 400 and the other a 455. Just got home from looking at a 1987 GTA Hardtop with some older 350 chevy smallblock. Now obviously what I want to do is put the 455 in the GTA. What all is involved with making this swap? I think Id have one sick ass car on my hands. Help, quick, both the car and the motor are advertised in local papers.. I bet I can get the car cheap and the 455 is a longblock with a TH400 hooked to it. I think Id probably order the adapter from Jeg's and keep the 700R4 though.

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Old 03-29-2004, 04:57 AM
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Mr_GTO Mr_GTO is offline
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www.chiefmanyhorses.com has kits to install the Pontiac motor in the 3rd gen. Rear end and tranny might not last long behind them though.

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Old 03-29-2004, 06:19 PM
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bonneville Joe bonneville Joe is offline
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Yeah, I kinda wondered about that. Good thing about being in South Florida is there is a plethora of tranny shops selling beefed up 700R4s cheap.

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Old 06-15-2004, 12:55 PM
dwainm dwainm is offline
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Look at a 200-4R trans. Will bolt directly to a Pontiac with no adapters, and can be built to be bulletproof.

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