gbtwo

iTrader: (4)

Quick question, I have a LQ4 that I plan to turn into a 370. With the LS3 being a 376 would it be worth it selling my exisiting set-up and buying a LS3 set-up? How big of a HP/TQ difference would the 6 CI make? I was leaning towards just buying a LS3 shortblock and selling my LQ4 setup.

lsxdick

iTrader: (4)

I'd personally go for the LQ4 setup. Iron block = stronger, plus you already have it. You can produce the same amount of hp/tq as an ls3. 6 ci isn't a drastic difference.

gbtwo

iTrader: (4)

Good suggestion, the only reason Ive really been considering it is the cost of new pistons, boring, machine work, and balancing might still come out to the price of ls3/l92 short block

A.R. Shale Targa

iTrader: (2)

The engine making identical power is only one part of the equation. Getting power to the ground to perform acceleration, I'll always take a hundred less pounds over the nose of my car any day. Better weight transfer equals more hook, translates to my opponent seeing taillights...not me

itsslow98

iTrader: (18)

If it will see boost id just do the iron block, if it will be strictly n/a id would opt for the lighter aluminum block ls3.

gbtwo

iTrader: (4)

No boost but might hit it with a 100 shot once or twice

itsslow98

iTrader: (18)

Id definetly just do the ls3 setup then, even a factory shortblock if you wanted to.

Detoxx03

iTrader: (14)

I'd do the LS3 for either. Bunch of boosted LS3's handling a 1000 or more and you don't have to tote the extra weight around.

Tuskyz28

For mostly a n/a build... The LS3 block would be the way to go. No one mentioned that the LQ4 block adds a 100 lbs to the nose of the car where it hurts the car overall performance the most.......

Detoxx03

iTrader: (14)

I did.

Tuskyz28

My bad LOL. Working till midnight had it side effects.

Detoxx03

iTrader: (14)

Haha it's all good.

A.R. Shale Targa

iTrader: (2)

post number four.................

gbtwo

iTrader: (4)

Thanks for the responses everyone. The block I planned on buying was sold so I'm still looking for one at a good price.

Tuskyz28

Do you plan on running boost or nitrous ?

Rise of the Phoenix

iTrader: (27)

I think it depends on how much you can get out of your existing LQ4 and how much you can find a LS3 for. If it's going to cost you quite a bit more money buying the LS3 after selling the LQ4, I'd just stick with the LQ4. If the price difference is minimal, I agree the LS3 would be the better route since it's aluminum

gbtwo

iTrader: (4)

I thought I found a LS3 shortblock for a good price but it's now gone.

JakeFusion

iTrader: (7)

LS3 all the way. More bore = more power and a better head selection. Also, I don't like adding weight to the car for any reason. The iron block isn't needed 95% of the time. And once it is, you really need to step up to an LSX block with 6-bolt heads.

gbtwo

iTrader: (4)

To make my dilemma even harder now, I thinking about just doing a 408... decisions.. decisions...

Rise of the Phoenix

iTrader: (27)

No replacement for displacement. Hey, someone was bound to say it.