6.0 head advice
#1
6.0 head advice
Hey everyone while taking apart my junkyard lq9 I found what appears to be a weld repair in the back of cylinder head. Has anyone seen a repair in this area? Is this common? Should I junk the head or keep it?
The are is at the 1 o'clock position of the freeze plug
The are is at the 1 o'clock position of the freeze plug
#2
It's kind of dirty and hard to tell, but it doesn't look like a weld to me. It looks like someone may have ground on it for some reason with a die grinder or something was rubbing up against it.
#3
Yeah I think you are right actually at first I was thinking it was a ground down weld but probably not.
#5
#6
TECH Senior Member
I wouldn't worry about it. Looks fine.
#7
11 Second Club
iTrader: (3)
What is the casting number on these heads?
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#8
11 Second Club
iTrader: (3)
Probably 035 or 317 which are 71cc heads but if you wanted to make some more power by increasing compression then look for some 243's
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G Atsma (01-22-2020)
#11
Yeah I was actually thinking about doing that but around here we only have access to 91 octane and i'm worried about 11:1CR with 91 octane. Do you think it would be ok?
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blsnelling (01-26-2020)
#14
#15
I had a head pinned to fix a crack before although it was cast iron not aluminum. Either way it looks like I'm tripping.
#16
Haha no offense taken I overthink allot. And I was obviously way overthinking this one. thanks for the pic I didn't even think to look at my head gasket in that spot.
#18
parts at home?
#19
Take it to a shop, have them mill and recut the valve seats and a reface on the valve, and have them ultrasonic clean the head if they can. Maybe they can mill or at least clean up the other mating surfaces.
Good as new.
Good as new.
#20
Teching In
I use spray cans of coil cleaner for A/C units for at home cleaning of aluminum parts, let it set on a while. If you have a shallow bucket, pan or something to let it collect in and then a variety of scrub brushes, tooth brush. I agree, at a minimum, hot tank, valve job and a few thou mill to clean the mating surface.