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Discussion Starter #1 (Edited)
What or whose trans are you useing
400 hp small block, 302 based engine
useing the old c-4 that came with the car and it sucks
feel free to rant or praise what you have
car is for street use /no need to race this one
rear gears are 3:55 and 27" rear tire
Thanks :wave:


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I understand that the C4 when properly built is great for performance use, TCI Streetfighter is one brand/model that comes to mind.
 

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I would remove that old C-4 and have it rebuilt, have a good shift kit installed, have your converter built to what stall speed you desire and reuse it. I did that to mine and had 450 invested in the rebuild (i pulled it myself and reinstalled it), shift kit was like 40 and the converter build was under 200. It held up great but I was only pushing a strong 300 horse on my 289hipo. Not ranting, just believe the C-4 is tough and proven since they still make them and all their parts.
 

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With those 3.55:1 gears you may want to consider an overdrive transmission of some type. AOD, 4R70W, gear vendors... etc. AZCAT has a nice write-up on the 4R70W swap here on MC.Net.
 
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