Weight difference between 4.0, LS1, 5.3 or 6.0?

[Avanteone]

Anybody have a good link saved or know the weight differences between Jeep 4.0, LS1 and a 5.3 or 6.0 truck motor? Contemplating a swap and trying to decide if the weight savings of an LS1 are really worth $2k-ish over the iron block 5.3/6.0 truck motors.

J

 

[DHR Motorsports]

stock 4.0's and 4.2's are around 515lbs.

The ls1's and 2's are around 480lbs and the all aluminum ones are around 415lbs. IIRC

 

[MarcW]

stock 4.0's and 4.2's are around 515lbs.

The ls1's and 2's are around 480lbs and the all aluminum ones are around 415lbs. IIRC

ls1's and ls2's are all aluminum, its the truck motors that have iron blocks.

 

[DHR Motorsports]

My bad... I forgot to clairify that.
LT1's are around 480-500 (same with the truck engines)
The LS series are from a claimed low of 385 to a spec 415

 

[Avanteone]

So it sounds like I could do 5.3/6.0, still be lighter than my current 4.0 setup, AND save myself some money over doing LS1. :011:

 

[FiFo]

Here is some info I got from Novak:

You'll be replacing one of three factory engines. Their nominal estimated, accessory loaded weights are:

 

[Avanteone]

Here is some info I got from Novak:

Sweet! Thanks! Looks like I can end up lighter AND not spend any more than I have to, 5.3's are cheap and plentiful!