V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

4.2L stroker

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Old Jul 6, 2007 | 08:37 PM
  #1  
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gtmustang04
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Default 4.2L stroker

im in the process of saving up for this stroker kit from super six
http://www.supersixmotorsports.com/p...3PowerPaks.pdf
the stage 3 and all the options except for the sheetmetal upper. its probably gonna be another 8 months before i order it but i wanted to know what else i should upgrade with it so i can get a good idea of the total cost so i know how mush more i need to save. soany suggestions, prices or links would be appreciate. o and by the way i already have a cai and the dual exhaust setupis gonna be ordered in the next three weeks.
Old Jul 7, 2007 | 12:15 AM
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Default RE: 4.2L stroker

anyone?
Old Jul 7, 2007 | 12:34 AM
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Default RE: 4.2L stroker

biggest valves, cut and weld, ported TB, largest MM port to match they can do, cam setup for NA i assume unless u plan on SC or turboing after that is done

and what kinda exhaust u getting i hope ur getting LT and new mid and not just cat back
Old Jul 7, 2007 | 03:05 AM
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Default RE: 4.2L stroker

I hope you know that stage 3 is useless without F/I.

Honestly it's better to supercharge or turbocharge first, then build around it with mods to compliment the F/I.
Old Jul 7, 2007 | 04:50 AM
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Default RE: 4.2L stroker

so i should go with the supercharger first? i wont blow anything internally? and what are must have upgrades right away to go wit the s/c?

i live in cali so i cant get lt's. im gettin shorties, catted H pipe, and flowmaster dual catback.
Old Jul 7, 2007 | 11:42 AM
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Default RE: 4.2L stroker

You can get an N/A built Stage 3 set up. There car ran 11's on all motor with it.

I'd make sure you have a good drive train and rear end. And as was mentioned, full exhuast.
Old Jul 7, 2007 | 02:04 PM
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Default RE: 4.2L stroker

which drive train and rear end would you recommend? and is there anything else u would recommend gettig along with it? and would i need larger feul injectors or anything like that?
Old Jul 8, 2007 | 04:52 AM
  #8  
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Default RE: 4.2L stroker

is gettin a s/c really that much better than the 4.2 kit? i wanted to get the 4.2 first so i can get all that outta the way first then add the s/c about a year later.
Old Jul 8, 2007 | 11:11 AM
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Default RE: 4.2L stroker

ORIGINAL: gtmustang04

is gettin a s/c really that much better than the 4.2 kit? i wanted to get the 4.2 first so i can get all that outta the way first then add the s/c about a year later.
Yes, it is better. In order to run maximum power with just the stroker kit and other NA mods, you'd need to run a different compression than with a supercharger. Then once you get the S/C, it won't work very well with the mods you have already done to run NA. So unless you want to have to buy pistons twice and re-work a lot of what you've already done, just supercharge it first.
Old Jul 8, 2007 | 07:43 PM
  #10  
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Default RE: 4.2L stroker

Get the blower on your current car. Then have the 4.2L made for boost, and swap it all at once.



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