Yte_sleeper

iTrader: (2)

I have a 99 Trans Am wth a T56 and I would like to upgrade to a 6.0. I wanted to know what I need to change to have this conversion done. Do I need the wiring harness, ecu, etc...?

Mike454SS

iTrader: (4)

If you get a Gen 3 6.0, you can use your wiring harness and PCM, if you get a Gen 4 6.0 from a newer car/truck, you can get a conversion box that will still let you use your PCM...do you mean a truck 6.0 or a car 6.0?

Yte_sleeper

iTrader: (2)

What years are the 3rd gen? The one I have is from an 03 Chevy Truck.

frito1

iTrader: (12)

That is a 3rd Gen. It will be plug and play with some additional tuning to get it spot on.

Yte_sleeper

iTrader: (2)

Thanks Guys! By the way will the cam from my LS1 fit the 6.0?

davidws6

iTrader: (36)

Yes the ls1 cam will fit. Going to use the one in your sig? If so should be a good combo !

Yte_sleeper

iTrader: (2)

Will I have to change the oil pan or any sensors?

frito1

iTrader: (12)

If anything looks different (as the pan will be different) just swap it over from the ls1.

the_merv

iTrader: (88)

Basically it will be a direct swap, just use all the Accessories that are on the LS1..you will have to Drill & Tap a hole for the outer Alternator Bolt.

Yte_sleeper

iTrader: (2)

This 6.0 is the one that they call the LQ4 right? Is this a good engine if I put the cam and PP heads that I had in my LS1? The reason I'm doing this is because the mechanic screwed me over with my LS1 block and pistons and I can't find another one that's within my budget and I think I'm getting a good deal with this complete 6.0.

Rick Speed

iTrader: (55)

a 6.0 can be either a LQ4 or LQ9.. its a great engine. You will need to use you LS1 oil pan and stuff but it's a super easy swap.

tspence45

iTrader: (30)

Depends. It could be an LQ4, or an LQ9. The LQ4 has dished pistons for a little lower compression, and the LQ9 has flat top pistons, for a little higher compression. Otherwise, I think the motors are identical. Either way, it should be a good combo. I'm going to be doing basically the same thing, only a little different cam soon, with an LQ4.

1320_Racing

iTrader: (44)

Let me know when your ready.... I am ready to get your car running again............ maybe we can go on a road trip to tune them. By the way who screwed you over with the block?

Pavetim

iTrader: (15)

so like you guys said his is a gen 3 lq4 when did the gen 4 start? Cause I have a 04 lq4 and an 05 ecm. Think the 04 lq4 is still a gen 3 but not sure about the ecm.

the_merv

iTrader: (88)

I believe '05 was the start of most of the Gen IV.