LT1-LT4 Modifications 1993-97 Gen II Small Block V8

motor upgrade?

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Old Sep 13, 2006 | 02:05 PM
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Default motor upgrade?

just wondering if a 427ci LS1,2,6,or7 would fit in a 1995 fomula firehawk? if so, what kind of power to the wheels could i be looking at, and if i supercharge it? just wondering is all
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Old Sep 13, 2006 | 02:08 PM
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Yes it could fit with modifications.

IMO more trouble then it's worth, Just build a 383 or 396 and supercharge it.
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Old Sep 13, 2006 | 02:21 PM
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it will fit fine
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Old Sep 13, 2006 | 02:23 PM
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That is about it. The extra work isn't worth it, and you can make some solid power with a 383.


Originally Posted by SmokedOutZ28
Yes it could fit with modifications.

IMO more trouble then it's worth, Just build a 383 or 396 and supercharge it.
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Old Sep 13, 2006 | 02:24 PM
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If you have the money and time why not. Itll be better than any LT1 out there but is it really worth it to you, that's the question. Do the math. In the end you will have dropped close to 15k (Very conservative number) to get the motor in and all the odds and ends to make it work and hold boost. Then another 5k + or - for the blower. Then another 2.9k for a built tranny and converter if you stay auto. Then another 2k for a rear end that will hold. Then 2k for at least a somewhat respectable suspension setup. Then so on and so forth. In the end youll have a 30k car that's worth 6k on the street.
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Old Sep 13, 2006 | 02:30 PM
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Thats a lot of money, but if you have it go for it. You can get good numbers out of a 396. Look at BRETTINATOR car "PEPE" 500 RWHP. Thats very respectable HP.
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Old Sep 13, 2006 | 03:01 PM
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Yeah but brett, Peppe, Tony etc are the minority so I cant stand when people use them as a example though I see your point. Look at the extreme they had to go through to make that power and imagine the money, time, and sweat that went into it. LSWhatever isnt the end all motor but it's a better starting block and I feel it can make more HP mod for mod and dollar for dollar.
I learned, from this board I might add that if I want a LSX to get a LSX vehicle.
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Old Sep 13, 2006 | 03:14 PM
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Originally Posted by Honda Hunter
Yeah but brett, Peppe, Tony etc are the minority so I cant stand when people use them as a example though I see your point. Look at the extreme they had to go through to make that power and imagine the money, time, and sweat that went into it. LSWhatever isnt the end all motor but it's a better starting block and I feel it can make more HP mod for mod and dollar for dollar.
I learned, from this board I might add that if I want a LSX to get a LSX vehicle.
chill honda man I agree with ya 100% LSX are good "building blocks" . Thats all Pepe was, just an example that it could be done with an LT1 block. Why can't I use them as examples, or let me repharase myself why do you hate it when their names are used? There is no copy write to their names or am I missing something. If anyone should hate it it should be them
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Old Sep 13, 2006 | 03:28 PM
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Youre telling me to chill but my words werent ment in vain so why would I have anything to hate? I just think it's odd when people use the same people as an example or as proof. It only prooves that not many can do it. Anyways, it was never my intent to turn this into a LT1 Vs LS1 fight thread. Seems like a civil convo cant be had when it comes to that. Anyways, I think Ill stick with my LT1 and when I'm ready to get a LS1 Ill get a C5. Wouldnt mind having both.
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Old Sep 13, 2006 | 03:35 PM
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don't forget to add the cost of a LS1 wiring harness & LS1 computer
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Old Sep 13, 2006 | 03:54 PM
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Originally Posted by Honda Hunter
Youre telling me to chill but my words werent ment in vain so why would I have anything to hate? I just think it's odd when people use the same people as an example or as proof. It only prooves that not many can do it. Anyways, it was never my intent to turn this into a LT1 Vs LS1 fight thread. Seems like a civil convo cant be had when it comes to that. Anyways, I think Ill stick with my LT1 and when I'm ready to get a LS1 Ill get a C5. Wouldnt mind having both.
I'm not trying to turn it in to a fight. Thats the first time I have ever used that car as an example. Cause dude you have some pretty strong cars on ur sig. I also would'nt mind an LS1 but ahving 2 project cars gets exprensive. Well to each theri own on their setups and good luck
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Old Sep 13, 2006 | 04:08 PM
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My bad bro. I seem to come off the wrong way sometimes
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Old Sep 13, 2006 | 04:11 PM
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It's like converting a A4 car to an M6. I have seen few that work nice, and alot of them that still have a few peoblems. That might be a small job, but the point is if you want it, you should get something already factory setup, or you will be putting alot of time and money into it.
Now some of the M6 Conversion guys might chip in about what I just said..
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Old Sep 13, 2006 | 05:58 PM
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i do have a 383( from the stock LT1, blew a main/ rod bearing)... but i have yet to see the performance #'s on the dyno(285hp, mustang dyno at 4500'elevation). it's getting tuned... after looking over the replyes, i just might supercharge it.
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