casting line or cracked head?

[CochinoFilipino]

We just pulled the intake manifold in replacing what we think is just a blown head gasket. But we see this line in the heads that look like a crack. But the same line is in another set of heads I had laying around. Is this just the casting?
This is on an 88 LX.

 

[67efivert]

looks more like the normal casting line to me

 

[ram360]

looks more like the normal casting line to me

x2

 

[NosPony]

If u fear the worst have them magnafluxed for like 30 bucks or so.

 

[giddyup306]

Yes you could have it magnetic particle detected or if you don't want to take it off the car just dye check it. Or it you want JB weld it. I know it's unorthadox but hell it works!

 

[txstang84]

...just a casting line

 

[CochinoFilipino]

We're calling it casting. We're cleaning them up and throwing them back on with ARP head bolts. How much torque do we use on these?

Thanks

 

[txstang84]

there should be a torq spec on the back of your arp bolt box, it'll tell you how much to torq them and with what type of thread lube, either 30w oil or moly based ass'y lube

 

[giddyup306]

there should be a torq spec on the back of your arp bolt box, it'll tell you how much to torq them and with what type of thread lube, either 30w oil or moly based ass'y lube

The specs on the back of the box are just general specs. It'd probably be best to email them or call ARP. BTW it is just a casting line. It goes all the way across the head.

 

[txstang84]

the specs are for THEIR fasteners based on bolt or stud, thread diameter, and pitch, with 30w oil (yes, it does make a diff), or ARP moly thread lube-go with the box, or with stock torq specs