My 5.3 vs 6.0 evaluation

[puckhead]

Very interested in this! Seems like a good cheap power swap! Where did you pick your engine up at? And what would be easier (read cheaper) if the tranny ended up going out? A rebuilt one or putting a 4l80e in? or other?

 

[Nickleahy23]

What did you do for the ECU, did you have to have it tuned for the 6.0? Was it driveable w/ the 5.3 computer?

I got it tuned for the 6.0 from Justin at Blackbear..never tried to drive it on the old tune

---------- Post added at 02:46 PM ---------- Previous post was at 02:44 PM ----------

boy big wheels must weigh down the truck quite alot, your 6.0 vid looks slower than my 5.3.

it also weighs alot more then your ext cab stock for stock..plus 250 lbs of audio, then the heavy ass wheels that measure to almost a 33" tire..

 

[2 E L O]

......my trans has a shift kit and servo, but its slipping now. it has 155k on it so thats probably not helping..im looking into getting a built trans here soon and then throwin a cam and a 3600 stall in it.

Yikes, dude...I don't think I'd go all the way up to a 3600rpm stall converter. That will be hell on the street and you'll burn up your fancy new trans in a hurry--even with a trans cooler. For the street keep it around 2200-2500rpm or so.

With your gear ratio, tall tires, and heavy ass truck it would take wayyyy too much throttle to accelerate normally with a 3600rpm stall.

 

[Rollin Thunder]

I got it tuned for the 6.0 from Justin at Blackbear..never tried to drive it on the old tune

---------- Post added at 02:46 PM ---------- Previous post was at 02:44 PM ----------



it also weighs alot more then your ext cab stock for stock..plus 250 lbs of audio, then the heavy ass wheels that measure to almost a 33" tire..

im taking about the yukon. Which is an XL and has stock 20's.

 

[Nickleahy23]

idk what to tell ya RT lol..its faster then most of the trucks around here..a 07 vmax always tries to race me and i can take him..

 

[Rollin Thunder]

huh weird and a Vmax, wtf lol. thats 367 hp on a silverado. Should blow the doors off of ya. IDK it prolly has more power, its just hard to tell with out actually feeling it.