1983 Cylinder Head Replacement

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mdw83fj60

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Apr 21, 2021
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Location
Indiana
Last week I finished what I thought was everything I needed to drive and enjoy my 60. I have replaced entire cooling system, new power steering pump, new motor mount on drivers side, drilled and tapped oil galley plug, solved all vacuum and exhaust leaks and replaced all vacuum lines( I’am de-smogged). Also upgrade alternator to 80 amp from a 62. ( all this over 1 1/2 years, my 60 has started everytime I went to drive it and has slowly ran better and better. Two days after finishing all this the cruiser gods threw me a curve ball.
A cracked cylinder head. Maybe the 60 liked all the vacuum and exhaust leaks better😬
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That bubble of coolant starts at nothing than grows as truck warms up then actually seals itself once at full operating temp.
I have decided to go the way of purchasing a fully refurbished cylinder head from SOR. My question revolves around if I am missing anything in my process.

1. Order and collect all items -replacement cylinder head, OEM head gasket, remflex exhaust/intake gasket, OEM lower thermostat housing gasket( just replaced upper with new thermostat so not pulling apart) , exhaust donut gasket. Am I missing anything??

2. Disassemble to pull cracked head( luckily when I replaced exhaust gasket 3 months ago went with all new hardware so shouldn’t run into issues there🤞also since I did desmog I know where all the vacuum lines go, but will still label to be safe.

3. Once cracked head is removed clean, clean, clean block surface. I am getting an engineers level off Amazon to check block surface. Clean head bolt wholes really well and Chase threads as needed have m13 X 1.75 .

4. Reassemble going to use engine hoist to place new head. Place headbolts in hand tight then torque in three sets 30, 60, 90 following pattern from FSM. Lightly oil head bolt threads and apply anti seize. Then add everything back on in reverse torquing all bolts per FSM. Then when all back together burp cooling system get truck to operating temp. then check torque head bolts on more time.

What am I missing ??? What should I look for or check when head is off??

I have read every thread on here I could find. Have downloaded FSM. Trying to be prepared but will be my first time. I will move slow and methodically when doing this.
 
And don’t dip the head bolt in a cup of motor oil then install it. It will get way too much oil clinging to it which will ooze out everywhere under the head gasket when the bolt is screwed down.
Just lightly coat the head bolt threads- thin sheen.

Practice oiling with one headbolt when the head is off - see what happens when it’s screwed down. If any oil burbles up from the threads — you applied too much.
Blow out the threaded hole and try it again- with less oil
 
So this weekend everything is off, I have new refurbished head and all gaskets ready to go. I’am at the point of cleaning block surface a lot but some areas are crazy tough to remove left over head gasket material. I am using various scrappers and razor blades. But progress is slow. Looking for suggestions on ways to finishing cleaning the rest. Specifically the areas in red. How to get cleaned and not send crap down push rod holes.
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I used some carbide blade scrapers that worked really well. Definitely was a slow process.
 
It was slow and tedious for me scraping that gasket off mine and I have the engine out of the truck currently. Take your time and be patient with yourself. You’ll get it done. Just don’t let it frustrate you. You’ve come this far. What’s a few more hours to make it right?
 
It was slow and tedious for me scraping that gasket off mine and I have the engine out of the truck currently. Take your time and be patient with yourself. You’ll get it done. Just don’t let it frustrate you. You’ve come this far. What’s a few more hours to make it right?
I keep telling myself not to rush because I only want to do it one time, and it’s not my daily so not taking my time would be dumb.
 
I keep telling myself not to rush because I only want to do it one time, and it’s not my daily so not taking my time would be dumb.
Exactly. Heck, I’ve been rebuilding my engine since November and it’s my daily driver. I’m still not rushing it. It’s not worth doing it twice.
 
I used some carbide blade scrapers that worked really well. Definitely was a slow process.
Thanks for the suggestion, got one and it was exactly what I needed to finish cleaning the block surface.
 
Progress has been made after three days of scraping and cleaning and then some more scraping and cleaning. New cylinder head is installed and bolts are torqued down.
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That’s gorgeous.
 
Hope it’s not too late. Can you check the block to see it’s flat and in spec?

These work great for gasket removal without eating metal.

 
Last edited:
Hope it’s not too late. Can you check the block to see it’s flat and in spec?

These work great for gasket removal without eating metal.

Yes , check the block surface with a straight edge. I looked at drill attachments but wanted more control over were stuff would fly, so had scraper in one hand and other hand shop vac. Then when I thought it was clean went back over with carbide scraper multiple times to get last small bits. Then went through a lot of brake cleaner on towels and kept wiping till almost nothing would show on shop towel. I tried to be as tedious with cleaning as possible. But my first time doing this, so🤞
 
Finally some progress. When I pulled the old head and I didn’t immediately check the push rods. So when I did finally inspect them. Found a few, 4 to be exact not straight, slight curve. So had to order some OEM replacements. Finally arrived and got rocker assembly installed , torqued down and valves adjusted.
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I dig the blue accents. Nice touch!
 
I’m in the middle of a full engine rebuild. It’s gonna be blue. Idle hands. Yes.

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I like the blue. I can’t imagine doing a full rebuild.
It is a lot of work. It really needed it though. Will be worth it. At times I wish I had bought a prebuilt head like you did.

I hope you get a lot of miles out of your rig. You’ve done a ton of work and deserve it!
 

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