4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Need Gearing & Heads help

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Old 04-25-2006, 01:31 PM
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Hendersondayton
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Default Need Gearing & Heads help

Two Questions

1. What is the STOCK Rear-End gear in a 99-04 (2001 in particular) Mustang GT? I thought I hear 2.73.

2. Is it possible to "port" the stock heads? what else is involved in a "porting your heads" job?
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Old 04-25-2006, 02:03 PM
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Dragon02GT
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Default RE: Need Gearing & Heads help

1. 3.27, I believe the v6's have the 2.73, I would have to ask my little brother he is a mechanic and has a v6, but yours is a 3.27 for sure.

2. Porting and polishing (P&P) oyur heads involves sending them out to someone who knows wtf they are doing. They will mill and polish the heads until they are smooth as butter. Allows more airflow in and out of the combustions chamber. I would go with a reputable sompany for this. You are almost better off buying one of the head kits they have which has the P&P heads, better springs, better retainers, etc. The following are some companies I would go with:

1. VT Engines
2. Fox Lake Racing
3. Livernois Motorsports

All of these companies are well versed in the 2V heads. They have good prices, but just to let you know you are looking at over 1K to get this done PROPERLY. (I do not have the links for the above three companies becasue I am not at home right now. I am pretty sure they are the following:

1. www.vtengines.com
2. www.foxlakeracing.com
3. www.livernoismotorsports.com

Just try using yahoo or something to search, you will find them easily.
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Old 04-25-2006, 02:04 PM
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Dragon02GT
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Default RE: Need Gearing & Heads help

^^^ yep, those are the right links
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Old 04-25-2006, 02:11 PM
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mustangman02232
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Default RE: Need Gearing & Heads help

all new edge 6ers have 3.27s with open diffs, 99 deluxe auto GTs (16" rims) had 3.08s i believe
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Old 04-25-2006, 03:17 PM
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Hendersondayton
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Default RE: Need Gearing & Heads help

Here is another question...what is the mm of the stock throttle body?
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