4.6 vs 6.0 C10?? - LS1TECH



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4.6 vs 6.0 C10??

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Old 02-03-2012, 10:59 AM   #1
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Default 4.6 vs 6.0 C10??

Well a guy i work with is a Ford 'er. He always talks down on GM.

But anyway, he has an 05'ish convertible GT, 5 speed & i was talking about my truck build the other day when he chimed in that we should line up when i finish it.

just wanted to see what you guys think the outcome will be since the truck is not finished yet.

but i have a 6.0 LQ4 with a 4L80E in my 1982 Shortbed GMC C10.

engine is fairly stock, stock intake, trailblazer SS manifolds (headers weren't available until a few days ago) dual magnaflow resonators with no cats, LS1 Radiator & electric fans, "off the shelf" tune added to the PCM when i had VATS disabled.

trans is fresh stock rebuilt, TRANSGO shift kit & B&M aux cooler ran in series with LS1 Radiator.

the only thing i have to finish is the rear end, the ol 10 bolts still in right now...
9.5" GM 14 bolt, 3.73's, disk brakes, Truetrac, Caltrac traction bars running 15x12 wheels with a 325/50-15 either Nitto or BFG Drag Radials out back


now i hope i can get a STALL convertor before hand, but based on this what do you guys think, from a dig? i def have him on power and more than likely traction, but weight will be my enemy as ol girl weighs around 4300.





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Old 02-03-2012, 04:37 PM   #2
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Well, he assuming he is stock it is a mid to high 13 second car if he can drive.

Edit:

Ran your numbers through a calculator. 4300lbs and 325hp (stock lq4 is rated 300-325 hp) gets you an estimate of ~13.8@97mph or so. Get the stall to put it in your favor.

Last edited by thunderstruck507; 02-03-2012 at 04:43 PM.
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Old 02-03-2012, 06:52 PM   #3
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Originally Posted by thunderstruck507 View Post
Well, he assuming he is stock it is a mid to high 13 second car if he can drive.

Edit:

Ran your numbers through a calculator. 4300lbs and 325hp (stock lq4 is rated 300-325 hp) gets you an estimate of ~13.8@97mph or so. Get the stall to put it in your favor.
thanks for the reply! i do believe it is stock, intake only at the most. boy would it be great to wipe that smile of his face, with a truck at that haha.

what would be a good stall to run?
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Old 02-04-2012, 03:36 PM   #4
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I would run a 3600 or 3800 and that body style is pretty heavy. My buddies 03 weighs like 4600 or so he says. Plus that 05 is bigger and a convertible so that adds weight. I think with a good size stall and a holy hell launch you will make him cry. My bone stock t/a was a bumper off my buddies 03 that has cai, tb, plenum, intake, CB, and full suspension. So I think you will get him
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Old 02-06-2012, 11:56 AM   #5
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A 03 Mustang and a 05+ Mustang are completely different animals. The pre-05 4.6 GTs were 2 valve turds (usually low 14 sec cars, great driver in good weather might get a 13 out of it).

05 switched to the retro body style complete with a 3 valve 300hp rated 4.6 and plenty of other changes.
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Old 02-06-2012, 04:21 PM   #6
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I would run a 3600 or 3800 and that body style is pretty heavy. My buddies 03 weighs like 4600 or so he says. Plus that 05 is bigger and a convertible so that adds weight. I think with a good size stall and a holy hell launch you will make him cry. My bone stock t/a was a bumper off my buddies 03 that has cai, tb, plenum, intake, CB, and full suspension. So I think you will get him
a 3800 was what i had in mind as well! if i can hold myself back until i get the stall i think it will be in my favor. because i'll have gobs more grip with 325 mm DR's than the mustang's all season pizza cutters as long as i can get some decent weight transfer.. i really need to look into a cam, possible an LS6 cam or something to move my powerband up.

one day i plan a mid-sized turbo install, but thatll be a long way off unless i win the lottery haha

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Originally Posted by thunderstruck507 View Post
A 03 Mustang and a 05+ Mustang are completely different animals. The pre-05 4.6 GTs were 2 valve turds (usually low 14 sec cars, great driver in good weather might get a 13 out of it).

05 switched to the retro body style complete with a 3 valve 300hp rated 4.6 and plenty of other changes.
& yeah i knew the newer 3v's are alot better contender than the old 2's.

im just ready to go find out. but im still a few months away
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Old 02-06-2012, 09:47 PM   #7
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Yea I know there is a big difference but my buddies has like 5-6000 into it thats why I used it as a comparison. But I think you will get him with the stall, and with a cam and a good tune you will be doing good.
And aren't we all waiting for that lotto ticket to come in and solve all our problems and make are cars crazy lol
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Old 02-17-2012, 11:27 PM   #8
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Might be close, I would be concerned about the Mustangs gearing advantage. I noticed that you stated that your C10 weighs 4300 lbs, did you weigh it on a scale? Looks like a SWB. I could be wrong, (actually the scale could be wrong) but I weighed an 82 C10 SWB at 3600 lbs on a truck scale.
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