LB7: Engine build questions

[shagy9888]

Well I picked up this LB7 truck last week and I knew it didn't run but didn't think it was this bad.
Story as I was told: truck sat for 3 years, drove and ran when parked.
Motor:LB7 115k
What am going to use it for: Tow/DD
Problem: motor/turbo locked up (see pic)
Questions: good gasket kits, good turbo for towing, good injectors for towing?

 

[shagy9888]

Was thinking of Merchant automatic full gasket kit? Anyone used it dose it really have everything to reseal it? And was thinking about there 30% more injectors? Too much for just towing? ARP studs on everything. I was thinking Garrett PowerMax GT3788R Ball Bearing Turbo Kit?

 

[TexasRob]

no way that ran when parked

 

[prodiesel804]

was the whole block full of water?

 

[TheBac]

May as well start looking for another engine. That one is toast.

 

[Kappa9012]

wow.... that's a rough one. it would be cheaper to find a different engine like Bac said.

 

[OregonDMAX]

May as well start looking for another engine. That one is toast.

ittl buff out :roflmao:

no seriously look for a short block and start from there.

 

[delong_1]

Bore .020 over and deck the block and it will be good to go. Stock injectors if towing if the primary use.

 

[DBUSHLB7]

Was thinking of Merchant automatic full gasket kit? Anyone used it dose it really have everything to reseal it? And was thinking about there 30% more injectors? Too much for just towing? ARP studs on everything. I was thinking Garrett PowerMax GT3788R Ball Bearing Turbo Kit?

The Merchant kit is a very good kit. I almost bought it myself for my recent build but decided instead to go with a victor reinz kit through Henry @ Creatures of the Night performance. It is a quality kit and has everything you'll need for much less money than the Merchant kit.

Studs are a great purchase but if you want bigger injectors don't waste your money on 30 overs. Get 60 overs at least.

 

[TheBac]

Bore .020 over and deck the block and it will be good to go. Stock injectors if towing if the primary use.

You really think .020 would clean those cylinders up? I know the pic isnt the greatest, but that engine just doesnt look salvageable to me. Id hate to see what the heads look like.

 

[OregonDMAX]

totally not salvageable, there is more to it then just the cylinder walls, how about all the cooling ports and oil galleys...those are definitely plugged up...its with out a doubt a totall loss on the short block

 

[hondarider552]

Paperweight

 

[blitzin247]

Yeah that short block is officially at coffee table statues, there is no saving that one bud. But you can find some stock short blocks cheap, just takes some looking.

 

[shagy9888]

Yeah found a short block before I pulled the heads BC I had a feeling it was bad. But it looks like there are cheaper gasket kits that are just as good out there, I will keep digging. And stock injectors will be find for towing sounds good. Is the TORQUE LOCK INJECTOR CUP worth doing and the Girdle Kit from industrail injection are both worth doing?

 

[PACougar]

Yeah found a short block before I pulled the heads BC I had a feeling it was bad. But it looks like there are cheaper gasket kits that are just as good out there, I will keep digging. And stock injectors will be find for towing sounds good. Is the TORQUE LOCK INJECTOR CUP worth doing and the Girdle Kit from industrail injection are both worth doing?

For your use I would do either of those. I'd stick with stock injectors as well. If it's really going to be a DD/Tow vehicle I wouldn't waste too much money over building it. Stock engines do just fine for a very long time under 500WHP. I would through some head studs in while it's apart, and of course I mean in a different short block from the one pictured.

 

[LWATSON]

I would go back stock with everything but I would add head studs. Seems everyone is satisfied with the quality and price of creatures of the night gasket kit also. As far as turbos go I'd try to find a good used stocker, probably not anything better for towing at low hp levels 400 and under.

 

[shagy9888]

Not all of them are like this. Any ideas? Dirty injectors I believe.
But the pass side is not as rusty but driver is rusty. I clean the rust off and got PB siding in them to get the motor to turn so I can get them torque converter bolts out.

 

[CaptPhil]

Looks like bad injectors to me.

 

[PureHybrid]

If it were mine, I would get my money back in a hurry. No way in hell it "ran", looks like it was already used for a boat anchor. Its hard to tell, but the one picture looks like the piston exploded. $.02

 

[Potthoffdmax]

^^x2