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Old 01-16-2012, 11:36 AM   #1
69trk
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gas pedal

for my ls swap, i was told that a 06-07 chevy truck with 799/243 heads will work best with a turbo... My question is, will i have to change the gas pedal out somehow for a dbw. Or can i use a cable? thanks
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http://67-72chevytrucks.com/vboard/s...d.php?t=494388

431 big block times, changed to a 6.0 ls with turbo
1.58- 60'
7.18- 1/8th mile@95.18
11.37- 1/4 @115.81
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Old 01-16-2012, 01:30 PM   #2
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Re: gas pedal

I coulda sworn I read that thread lol. Why did you want to go with a higher compression head along with a turbo setup? I'd think you'd be better off taking advantage of the lower compression that the 317's would offer.
799/243 DO flow better but would raise compression on a 6L to about 10.4:1 with a stock gasket.

That doesn't answer your question tho. Which intake are you planning on using? I think that has more impact on TB choice than the heads, unless u go to an l92 style setup.
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Old 01-16-2012, 01:42 PM   #3
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Re: gas pedal

Which year would you recommend. I'm reading on yellowbullet and that's what they are saying, but not sure....
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http://67-72chevytrucks.com/vboard/s...d.php?t=494388

431 big block times, changed to a 6.0 ls with turbo
1.58- 60'
7.18- 1/8th mile@95.18
11.37- 1/4 @115.81
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Old 01-16-2012, 09:56 PM   #4
6.0 1955
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Re: gas pedal

You can purchase aftermarket throttle bodies for cable use. Factory throttle bodies can be used on the earlier intakes I'd say 05 back. 317's and 243/799 heads all flow approximately the same just the 317's have a larger combustion chamber. Buddy of mine just built a stock bottom end ls2 with junkyard l92 heads and single turbo. This setup made 963hp to the wheels. Hope this helps and good luck with the build.
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