2004 regency silverado 4.8 t56 magnacharger, need cam suggestion
Nov 4, 2009 | 12:07 AM
#11
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im about to do the t56 swap as well. does everyone have to use this spacer? or was urs one of those cases where you just had to. im doing almost the same setup as yours only im going to try a huge cam and some ported heads along with spray until i can find me a charger to throw on as well. what other parts did you need for the swap? I know ls1 type clutch, driveshaft is different, sensors, and the shifter comes way back further so you lose the jumpseat.
Nov 8, 2009 | 09:14 PM
#12
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From: Palm Beach Gardens, FL
I have an 02 with the 4.8l and was wondering about the trans crossmember does this need to be moved back too? Also there is no way that you can use the factory manual shifter hole in the floorboard? Where did u get the spacer from? can I use the truck flywheel so i get a 12" clutch or do i have to use the clutch for the t56 tranny? any info would be very much appreciated? Rayhinnant@yahoo.com
Nov 8, 2009 | 09:52 PM
#13
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I have an 02 with the 4.8l and was wondering about the trans crossmember does this need to be moved back too? Also there is no way that you can use the factory manual shifter hole in the floorboard? Where did u get the spacer from? can I use the truck flywheel so i get a 12" clutch or do i have to use the clutch for the t56 tranny? any info would be very much appreciated? Rayhinnant@yahoo.com
May 7, 2010 | 03:10 PM
#15
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Question for you
if i may make a suggestion, ditch the 3.73 gears. the truck will drop on its face horribly. i ran with the 3.73 gears in mine for almost 2 years, then went to a 4.56 which made it better but didnt fix the problem. i ended up going with the 4.88 gears and love them. now i know your gonna be makin more power than i am, but i would step up to atleast a 4.56 gear. right now with the 4.88's im runnin just a hair over 2000rpms at 80mph in 6th gear with 32" tall tires mounted on 08 tahoe 20's. with the 4.56 i was runnin between 1700 and 1800rpms in 6th at 80mph. check my vids and if you look at the older vids youll see how the truck bogs at take off. i have only been runnin the 4.88's for a couple of months. if you have any questions bout the t56 swap or setup let me know.
Aug 22, 2010 | 03:17 AM
#16
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I have a 2007 GMC savana motor 4.8L that I am swapping into a Colorado along with a T56 will the clutch flywheel from a 98-02 camaro 5.7L work? I am concerned about balance, and weather the wholes line up? I don't think I will need a spacer because the flex-plate had a .4 inch spacer on it, meaning I have the normal .4 inch shorter crank style
Aug 23, 2010 | 05:49 AM
#17
I have a 2007 GMC savana motor 4.8L that I am swapping into a Colorado along with a T56 will the clutch flywheel from a 98-02 camaro 5.7L work? I am concerned about balance, and weather the wholes line up? I don't think I will need a spacer because the flex-plate had a .4 inch spacer on it, meaning I have the normal .4 inch shorter crank style
question though, why a 4.8L? why not a 5.3L or a 6.0L? they are all the same block, just different internals for the most part.
Aug 23, 2010 | 09:30 PM
#18
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my biggest concern was weather the 4.8 was balance any different then the f body 5.7L motor, I didn't want to through my moor out of balance or something!
I went with a 4.8L because I picked up the wholes van for 1400.00 running still with only 13,292 kms he had a hit a tree, I a am parting out the rest, and so far without selling anything else, or getting scrap for the shell the engine has only cost me 600.00 good price for everything that I need, plus I take it all apart my self! the truck I am putting it into only weighs 3400 pounds so it should be plenty powerful for it!
I went with a 4.8L because I picked up the wholes van for 1400.00 running still with only 13,292 kms he had a hit a tree, I a am parting out the rest, and so far without selling anything else, or getting scrap for the shell the engine has only cost me 600.00 good price for everything that I need, plus I take it all apart my self! the truck I am putting it into only weighs 3400 pounds so it should be plenty powerful for it!
Aug 23, 2010 | 09:44 PM
#19
Wow. I didn't see this thread before. If going from a 5 speed to a T56 (in the 04-06's+ at least for sure) You just have to pull the large pilot bearing and install a T56 pilot bearing that goes further into the crankshaft and will allow the trans to pull up flush with the block.
And as far as power with a 4.8 and radix, I made 431rwhp/489tq with a trucker cam and 3.0" pulley 5 years ago.
Everyone thinks you need to just throw the 4.8 away but I do remember waxing a Lighting at the track that had ported blower and full bolt ons with my junk 4.8.
And as far as power with a 4.8 and radix, I made 431rwhp/489tq with a trucker cam and 3.0" pulley 5 years ago.
Everyone thinks you need to just throw the 4.8 away but I do remember waxing a Lighting at the track that had ported blower and full bolt ons with my junk 4.8.
Last edited by TurboGibbs; Aug 23, 2010 at 09:50 PM.
Aug 23, 2010 | 10:06 PM
#20
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I am going from a 4L80E to a T56 or a custom adapter to the stock transmission in my Colorado at the moment I have know pilot bearing at all, Also apparently the 07 and up truck motors no longer come with the longer crank shaft, instead it is the same as the 5.3 6.0, and features a .4" pressed on spacer to the flex-plate, when coupled to a 4L80E.
So sounds like I should be good to go with the luk Z06 clutch kit, and LS1 98-02 camaro flywheel, they whole package with new pilot bearing was only 317.94 from ebay!
good to hear you made that kind of power! what came did you use? See that is one reason why I wanted a 4.8 as they are not DOD, and don't need to replace the lifters timing set etc.. to do a cam swap, were most of the 5.3 are DOD!
So sounds like I should be good to go with the luk Z06 clutch kit, and LS1 98-02 camaro flywheel, they whole package with new pilot bearing was only 317.94 from ebay!
good to hear you made that kind of power! what came did you use? See that is one reason why I wanted a 4.8 as they are not DOD, and don't need to replace the lifters timing set etc.. to do a cam swap, were most of the 5.3 are DOD!