can anyone tell me the hp on a stock lq4&lq9

 

Google....

 

lq9 345 hp
lq4 300-335 only difference being the tune.

 

LQ9 has higher compression doesnt it? I thought the pistons had a different top.

 

yes. i meant the only difference between the ratings on the different LQ4's is the tune.

 

duh

i missread your post

 

LQ9 = 10:1 compression, flat top pistons
LQ4 = 9:1 compression, dished pistons

 

No the LQ9 is 10.08:1 and the LQ4 is 9.4:1

The LQ4's rated at 300 were at lower rpm's I believe whereas the LQ9 is rated at 5200 where the stock cam makes peak HP. LQ4 is 335 and LQ9 is 345, negligible difference.

 

didn't know that the LQ4 was 9.4:1......excuse me for being .08 off on the LQ9

 

I dont think he ment any harm by correcting you, rather just trying to clear things up.

After 04 I believe the only difference was the pistons prior the rods were also slightly different. I think all 05 and newer use LS2 Rods. Someone correct me if I am wrong. I am trying to remember.