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engine swap 400 t0 430

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Old 07-23-14, 06:09 PM   #1
400 Degrez
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Default engine swap 400 t0 430

Hello can I swap my 4.0 engine with the 4.3 engine without any issues....if so what do I need to reconsider......I have 350k on my 400 and would like to swap this engine out the 4.3 also comes with a transmission.
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Old 07-23-14, 06:14 PM   #2
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Check if the ecu is the same. I have ecu and spare keys if you are shopping. Too lazy to post it for sale. I hope it's just an engine swap. The 430 does well with the ppe headers. GL...crossing fingers for you.
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Old 07-23-14, 06:16 PM   #3
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Originally Posted by sam430 View Post
Check if the ecu is the same. I have ecu and spare keys if you are shopping. Too lazy to post it for sale. I hope it's just an engine swap. The 430 does well with the ppe headers. GL...crossing fingers for you.
Thanks ...How reliable is the 430 engine?
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Old 07-23-14, 06:58 PM   #4
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Why not just get a lower mileage GS? That's a good amount of mileage on all body components. Sell yours, add a $4k more and get a much lower mileage GS. By the time you by the engine, tranny and pay for uninstall and install of new I would think you would be spending at least $2500. So, $1500 more you can start with a newer platform.

Just a thought.

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Old 07-23-14, 11:25 PM   #5
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Originally Posted by Rock-a-Lex View Post
Why not just get a lower mileage GS? That's a good amount of mileage on all body components. Sell yours, add a $4k more and get a much lower mileage GS. By the time you by the engine, tranny and pay for uninstall and install of new I would think you would be spending at least $2500. So, $1500 more you can start with a newer platform.

Just a thought.
well, he can get suspension components from figs and it'll be all good. The 430 engine is super reliable... The only problem I've ever had was a loose clamp on the radiator hoses (invest in new clamps;cheap). I drove it at a good rate with water gushing out and temp rising...did not detect any leakage with chemical tests.

you need to put PPE headers on those...it's worth it.
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