GMV head gasket

[daveiaff]

New injectors arrive tommorow morning then install starts Many ofyou probably have the same story. Head gasket leak, send heads to magna flux and I had a crack between valves on drivers side head second piston back, That’s also the one that had the head gasket leak, machine shop guy saw it on the head gasket. Long story short, new Promaxx heads from jegs, all other parts advance auto. GEP block, I went with tty new bolts , would of got the arp studs , but the motor is still in and I did t think I could get the new heads up and over the studs Anyone out there use arp”s with the motor still in?

 

[daveiaff]

 

[Crf450x]

Can you not put the heads on and then screw the studs in the same as bolts...? That’s the only way I’ve ever done it (on other engines)

 

[NDT]

You started with a GEP engine and STILL had cracking issue???

 

[daveiaff]

AR

Can you not put the heads on and then screw the studs in the same as bolts...? That’s the only way I’ve ever done it (on other engines)

Arp’s directioms said to install studs finger tight and then place heads over top and then add nuts. I have a turbo motor that I’m going to redo next. It’s on a stand and I will use head studs on that one.

 

[daveiaff]

You started with a GEP engine and STILL had cracking issue???

Yes , one crack between valves, so I just replaced both. In process of tracking down turbo harness and do a swap. I just wanted this motor fresh, it may be a few months before I round up all the parts for swap.

 

[Retiredwarhorses]

You started with a GEP engine and STILL had cracking issue???

GEP or not, it’s still an issue on the heads.
you may be thinking #8 crack issue....this is not the same.

 

[daveiaff]

Only need a few more hours and should be running.

 

[TOBASH]

You sure those orange head covers won't shine through the hood and blind you at night?

 

[daveiaff]

You sure those orange head covers won't shine through the hood and blind you at night?

Back to the GM roots color , plus it was extra from an old c10 that I did.

 

[daveiaff]

She lives again. The new injectors really woke it up. Had a small drip at the injector pump crows foot and two wobble extensions and a 16th tighten and it went away. The snap on digital torque wrench did its job, that was the only drip. Sitting at idle now and it’s Just below 220 after a few easy drives.