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Old 12-08-2008, 11:01 AM   #69
Bullitt5094
Mach/Bullitt Hybred
 
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Join Date: Feb 2004
Location: Houston
Posts: 103
Re: How to change your 5 speed to an automatic

Quote:
Originally Posted by shoelebubba View Post
Figure I might as well ask.

Can I expect the same type of performance if I used a stock Mach 1 with an automatic trans as I would a stock 5 spd Mach 1 converted to an automatic?
I'm not sure I understand the question but, the only difference from a factory Automatic Mach and doing a conversion from a 5sp to a stock 4R70W is the computers are different and the factory automatics came with a steel "GT" crankshaft and the Manual Machs came with a forged "Cobra" crankshaft. Performance wise there would be no difference from what I know.

Why are you asking? Are you thinking of buying a Mach, have a choice between an auto and a manual? If that's the case and you want to end up with an automatic, I'd certainly get the automatic to begin with and start the mods from there.
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9.33@152 mph 2001 Bullitt
BC Automotive 4R70W, G&G Performance / Kris Starnes Racing 4V Motor, Vortech JT-Trim
Almost Stock '03 Mach 1
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