Hey guys, I thought I would share some of the information Ive gathered over time to help anyone that wants to get an idea the power difference between the major LSx based engines. I have yet to dyno a 6.0L LQ4. I will add them if I ever get the chance to.
All testing was done on the same dyno, all were automatics and basically stock.
I have one in my silvy that I took to get a dyno after my cam swap and it clocked in with 309rwhp. FYI: done on the 22's and a stall converter. http://imageshack.us
I'm no where near full bolt ons yet. I'm about to slap in a lq4 in the silvy and put the 4.8L in the s10.. So far the best i've done at the 1/8th track is 8.97@74mph just imagine if that was in a lighter s10 pickup
you are correct.. I just wanted to show that 4.8L's have potential too just like the bigger motors. Seems like they dont get enough respect but whatever.. The fact that you can swap everything over gives people so many options to go with when building a motor like the ls series v8 motors.
It has nothing to do with respect, it purely a potential factor. A 5.3, 5.7, or 6.0L will gain the same amount or better if they all had the same bolt ons.
This thread was purely to show people where their starting point would be when trying to decide which engine to buy Since most people buy factory pull outs and not built race engines. Making a smart desicion will get everyone the most HP/dollar.
Sure, Ill pay all the shipping too. Just send your engine back to me in return, remembering Im being nice enough to pick up all the shipping charges...
For you guys looking into a 4.8 or a 5.3 I know the 05 and newer model lr4/lm7 mills were changed to a fully floating piston with locks. Probably dont mean much but I have an 05 silvy with the 5.3 and it has never had the infamous piston slap on cold start or the spark knock sound on warm start issues.