4.8 vs 5.3 NNBS?

[blueflamed03]

4.8's like to rev to make power....I so need gears

 

[Jay]

By the time you buy gears and pay someone to install them you could drop in a low-mid mileage 5.3 or even 6.0. Those motors go for cheap in the salvage yards.

 

[blueflamed03]

I can get gears for $230, and a drag racing buddy install them. IMHO even the 5.3 could use some gears, with a 31" tall tire. 3.42's suck in a 5500 lb truck.

 

[Jay]

Well, I have to agree. My 07 yukon 5.3 has 3.42s and they're great for cruising down the highway but sometimes when pulling the boat or camper I wish 3.73s or 3.90s were back there. I only pull with the yukon about 10 times a year so I'd rather have the 3.42s anyway. I don't race it or care about speed though... this thing spends 90% of its life hauling my offspring.

Might be trading the camper for a 5th wheel next year though. I smell a duramax coming my way

 

[blueflamed03]

gonna say, better have the funny smelling exhaust tow hauler for that

 

[Danny_Z56]

"**I won't be towing anything, and its lowered with 24s so I don't need to be hauling ass anyway." - coles1189

In that case the 4.8L should be just fine for you.Keep in mind its sill a V8,so you will still have that nice V8 torque and punch.If we were talking Fords than i would tell you to go for the bigger motor,as Ford trucks and SUV's really lack bottom end grunt.GM V8's seem to be very torque friendly through out the power/RPM band.

Need proof of this? Test drive a DOHC V8 Cadillac and a DOHC V8 Lincoln,nuff said...