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dgoodhue said:If your going to do a LS1 conversion, do something wild atleast low 11's sec time slip or faster preferable 10's or 9's (Twin Turbo would be nice) A mild LS1 is a waste of money, you can do the same thing for less effort and the stock motor and not kill th evalue and uniqueness of the truck.
Tydriver said:dgoodhue said:If your going to do a LS1 conversion, do something wild atleast low 11's sec time slip or faster preferable 10's or 9's (Twin Turbo would be nice) A mild LS1 is a waste of money, you can do the same thing for less effort and the stock motor and not kill th evalue and uniqueness of the truck.
Blah blah blah..
Unique-ness ? Whats more unique than an LS6 in an typhoon damn near 8000 of them came with 4.3L turbos. Not many will have Turbo'd LS6's.
IMO, a an LS1/6 or for that matter the GEN 3 motor is a much better platform to start with than the 4.3L.
Couple of things to consider :
1. Stock 4.3L dressed up with all the accesories weighs within 25# of the ls1/6 in the same condition. (aluminum block = ownage)
2. The stock LS1 heads flow around 270-280 cfm off the shelf from the general. LS6 heads closer to 300cfm WITHOUT ANY PORTING.
3. The Gen3 blocks all have 6 bolt mains.. only 2 with the 4.3L
4. The high performance market is 10x bigger than anything ever thought about being for the 4.3L.
5. Take a stock LS1 motor at 310-335hp (depending on application) or even an LQ9 iron block 6.0L (345hp) and throw on 150 shot of nitrous and it will outrun 90% of the trucks here on SyTy.net and still be dead nutz reliable. (cant say that for many 450-500hp 4.3L's)
Anyone that wants to perform this mod on their truck I say KUDO's to you for thinking outside the box and trying something new. YES it will fit, NO its not as simple as a SBC swap. Howewer, anyone that claims its more $$ than doing a 4.3L is obviously quite misinformed. Dollar for Dollar its pretty close, I'd have to guess its slightly more than doing the 4.3L but not buy much at all. IMO, well worth the $$ spent to have a much more reliable platform.
I've gotten alot of criticism for starting this project, those that know me know it will be done RIGHT, the rest can just :fist: Most of the parts I am using are straight from GM. Not many 'built' 4.3L motors can say the same thing.
Ohh, and in terms of hp and tq #'s 14-15# of boost on a stock well tuned LS1 rotating assembly with 120,000 miles has already made WELL OVER 750 RWHP and close to 800lb ft.
Anyone thats interested in this build is welcome to contact me, I will try to help out with what I can. My website is in my signature and the gallery has alot of helpful pics.
Ohhh, and dont feel like the lone-ranger.. There are more of us doing this than some people want to see :rock: I have had contact with about 4-5 interested people and 2 are definites..
BigAl... said:Todd, sometimes I wish I would have gone the ls1 rout, with what I have spent on the 4.3 I could have easily built a monster ls1 w/turbo, nitrous, afterburner, madmax switchable blower etc etc etc...
more power to ya! but you know I'm gonna give you sh!t when you say something like "worlds fasted typhoon" hehe
BigAl...
Tydriver said:Unique-ness ? Whats more unique than an LS6 in an typhoon damn near 8000 of them came with 4.3L turbos. Not many will have Turbo'd LS6's.
IMO, a an LS1/6 or for that matter the GEN 3 motor is a much better platform to start with than the 4.3L.
2. The stock LS1 heads flow around 270-280 cfm off the shelf from the general. LS6 heads closer to 300cfm WITHOUT ANY PORTING.
3. The Gen3 blocks all have 6 bolt mains.. only 2 with the 4.3L
4. The high performance market is 10x bigger than anything ever thought about being for the 4.3L.
5. Take a stock LS1 motor at 310-335hp (depending on application) or even an LQ9 iron block 6.0L (345hp) and throw on 150 shot of nitrous and it will outrun 90% of the trucks here on SyTy.net and still be dead nutz reliable. (cant say that for many 450-500hp 4.3L's)
Ohh, and in terms of hp and tq #'s 14-15# of boost on a stock well tuned LS1 rotating assembly with 120,000 miles has already made WELL OVER 750 RWHP and close to 800lb ft.