what is the difference? i know one is better for a forced induction.. i'm plannin on a magnacharger or sts turbo when i do the 6.0 along with a 75 shot or so.. which should i go with?

 

LQ4... the difference is compression. the LQ9 just has different pistons.

 

I thought the rods were different as well.

 

I dont think so... but the LQ4 will be the better one to boost... lower com ratio..

 

LQ9 internals are different then the LQ4 the LQ9 is a built factory motor with flat top pistons were as a LQ4 is your typical motor

LQ9 and LS2 have same internals

 

The LQ9 rods are beefier than the LQ4's. The LQ4 has dished pistons and lower compression. It'll be better for a boosted application. Should be cheaper than a LQ9 as well.

 

Yah lq4 better for boost (dished pistons) less comp. lq9(flat top) different rods more comp

 

when in your timeline are you planning this swap, JJ?

 

the LQ9 with LQ4 pistons would be ideal for boost and if you went with a thicker head gasket then stock you would be around 9.1 CR which is pimp and have a stout bottom end

 

my trucks goin to hills hot rods in february to get COMPLETELY redone.. i'm taking it down there on the first of february completely gutted out and its coming back a COMPLETE different truck layin body on 22's with the engine i'm tryin to figure out.. only problem is i dont know **** about engines