TexCrew

what is the difference between a lq9 and an lq4? how much are they for a rebuildable one? maybe if my christmas bonus is big enough i can buy the one from Tootall...lol

NegraRCSB2X4auto

iTrader: (15)

I think the lq9 has a little stronger internals.

Nick™

iTrader: (2)

difference is pistons and rods, if you plan to replace those components then it doesn't matter which one you get.

UBLUZIN03

iTrader: (1)

the lq9 has higher comp. too..

Tootall

iTrader: (79)

high compression, flat top pistons, bigger rods (HD)
same 317 heads
same cranks
They're easy to rebuild. You can find a 04 and up, LQ4 "rebuildable core" and rebuild it with flat top pistons if you wanted to

TexCrew

i found one on ebay. i hear that the 6.0 conversion is a good mod to make.

nick993

iTrader: (2)

when in doubt...punch it out.

Mangled03gmc

iTrader: (95)

Also in 04 both the motors had the same internals, other then the 9 still haven the higher comp..
John

BlackLM7

LQ9 has flat top pistons and the LQ4 pistons have a small dish to them. The differences in the pistons give the LQ9 a 10:1 compression ratio while the LQ4 only has a 9.4:1 compression ratio. Both engines have 317 heads (except earlier years) and *I THINK* the LQ9 has stronger rods. Not sure about that....

ap2002

iTrader: (8)

so im guessing after you watched us race last friday at the track you got bitten hard by the mod bug!! do it!!