4yall2nv

iTrader: (3)

I was Wondering what the differance between the lq9 and lq4 6.0 liter motors were? how much hp do they put out? wieght differance? heads /cam?thanks in advance!

Hemi Killer

iTrader: (6)

Same weight, same heads. Slightly different cams depending on the years. The LQ9 has flat top pistons.

4yall2nv

iTrader: (3)

what kind of pistons do they lq4 come with? thanks! about how much hp r these motors putting out stock? thanks!

Hemi Killer

iTrader: (6)

They are dished in the LQ4 and flat-top in the LQ9. Stock the LQ4 puts out almost just as much as the LQ9. The bumped compression ratio of the LQ9 makes it just a little bit higher. Most guys who run some kind of FI run the LQ4 and most people that run n/a or nitrous run the LQ9. I think the compression ratio is LQ4 9.5:1 and LQ9 10:1. The advertised hp ratings for these motor has been changing. It's supposed to be something like LQ4 = 300-325hp and LQ9=345hp+. I remember seeing a stock LQ4 in a truck make something like 28x rwhp.

4yall2nv

iTrader: (3)

thanks man , really apreciate all da help!!

383lt1impala

iTrader: (33)

Anyone have pics of the differance? I have a iron shortblock. And they are somewhat dished but veryyy slightly.

89ROC-Z

iTrader: (11)

TTT I need to see the piston pics too.

02*C5

iTrader: (1)

383lt1impala

iTrader: (33)

Yep that's what I have they are the lq4 right? Cuz I expected the dish to be a bit deeper.

02*C5

iTrader: (1)

All you need for 9.5:1 compression is not that deep of a dish, and if you put a thick enough gasket you are all there. These little engines are great for forced induction.