miller456

iTrader: (36)

Well im not sure where to put this so here it goes. I blew the ol 346 up in my 98 z28 and now im going to be moving up to a 6.0 and converting to a th400 as well. My question is will I have to use the pcm for the 6.0? and in doing so i think since my car there are a few things that are different such as the temp sensor in the wiring harness. I'm curious of just how much work is going to be involved in this swap to make it work?

the_merv

iTrader: (88)

Keep your 1998 Temp Sensor and PCM..as well as all the Wiring, it will hook up(I'm using a 1998 Temp Sensor in mine ).
I would take the 6.0l Coils if you can get them, the ones from your 1998 won't work, the 1998 Valve Covers won't work either.

You will have to drill & tap a hole on the driver's side front of the 6.0l Block for the Alternator Bracket.

Also make sure that you don't have the extended Crank on the 6.0l.

All your Bolt-ons will still work, I would install that MS4 Cam into it.

Then after you have it all installed, get it tuned.

miller456

iTrader: (36)

Thanks for the info, and why wont the coils from the 98 work? I kinda saw a very small pic about drilling and tapping a hole for the alt. bracket in another write up. Also the motor pretty much comes complete with valve covers, intake, coils, etc. I figured id be swapping the ls1 pan and i also have centerbolt valve covers from an 02 ss if i need to swap out. The ms4 was destroyed when the motor took a dump unfortunately, so im trying to get another cam specd for the 6.0. Otherwise is it just a pretty much straight fwd swap? Also could you explain the issue with the extended crank and how to tell? thanks again.

the_merv

iTrader: (88)

The Coils on your 1998 bolt to the Valve Cover, and it has them pain in the *** perimeter bolts. On the 6.0l they will be Center Bolt Valve Covers with Coils that are on a Bracket bolted to the Valve Covers..look close and you will see it.

Yea you will need your Camaro Oil Pan, Pickup, and Windage Tray if you run it.

Look on back of the 6.0l Block, if the Crank extends past the Rear Main Seal about 3/8" then it's the extended one. If it's flush then you are good.
If it does extend out, look close and see if there is a groove, that's a Spacer and can be removed. Some didn't have a Spacer and pretty much need a normal Crank..no way around it.

Post a pic of the back of the Crank and we can tell you.

miller456

iTrader: (36)

thanks man i understand everything you pointed out and i already have the coil problem solved. I floated the valves on the heads on my 98 awhile ago and bought heads from an 02ss along with centerbolt valve covers and coil brackets. I was reading something about maybe needing a knock sensor extension? other than what you told me here is it just pretty much plug n play? also assuming i need to take the motor mounts from the ls1 as well.

the_merv

iTrader: (88)

Yea you take the Mounts from your Car off the Block and bolt them to the 6.0..they will work fine.

Your Knock Sensors are fine, they will work perfectly as they are. The Gen IV Engines are what need the Extensions(LS2, LS3, LS7, L76, L92).

Everything you have will work, just drill & tap that hole, and stick it in.

Gaunt

iTrader: (11)

I didn't see it posted, but you obviously need to ditch the tall truck intake manifold.

the_merv

iTrader: (88)

I figure he would know that one..

Gaunt

iTrader: (11)

Haha, well, it was worth a shot just in case

99Ls1fever

iTrader: (3)

I was going through your car domain. Amazing Ride!!!

the_merv

iTrader: (88)

Thanks.. it's apart at the moment..lol

Yours is nuts aswell..

True..good lookin out.

miller456

iTrader: (36)

Thats what she said

and yea i knew about the intake as well.

Gaunt

iTrader: (11)

Well **** me sideways

at least you will have fun with it

the_merv

iTrader: (88)

That's what she said too..

miller456

iTrader: (36)

another question about the extended crank, is there a certain year, model etc. that has this? the motor will be coming from a salvage yard and in some instances may need to pull the motor before i go get it so you can see the problem here. I have them pull it to find out it has the extended crank . Also if theres a spacer how does it remove and would the extended crank be ok as long as the spacer can be removed?

the_merv

iTrader: (88)

Yea the Spacer can be removed. It was with the earlier ones..like the 1999-2000 models.

You really won't know till you get it out..well the Flexplate off anyways.

SchuttsR1

iTrader: (1)

It was normally the ones with iron heads that had the extended crank. They were the early model years though
But since you are going to a turbo 400. I would actually look for one since you will not need to run that spacer and it should bolt right up.