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4.7L Head Gasket Change

72K views 13 replies 9 participants last post by  krazykane  
#1 ·
DJWolf asked me to post this up when I was done with it. I pulled the heads off my 4.7L without pulling the timing chains.
List for this install evolution.

1. Fastman 69mm Throttle Body
2. Comp Beehive High Load Springs
3. Cometic Head Gaskets
4. Hylomar Spray
5. Mopar Head Bolt Kit
6. New Header Gaskets
7. New intake Manifold Gaskets
8. Aftermarket Water Pump

I supported the A/C Compressor
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With a paint marker I marked the positions on the cam sprocket and removed it from the chain and inserted a large rope. This was to keep the chain inplace while I pull the head.
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The heads looked pretty rough with carbon deposits and all
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Then I cleaned them with carb cleaner and a brass brush.
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I installed the new Cometic head gasket with hylomar spray
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I installed the head with new bolts and torqued to 45lbs and then with a torque angle gauge went 90 degrees making each bolt right at 80 foot lbs torque.
I also painted the valve covers and manifold with high temp paint sprayed through a HPLV sprayer.
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Today I fired it up and everything was good as new!
 
#4 ·
Thanks guys, I was certainly glad to have her back together, lol.
 
#6 ·
Jay, like we discussed over the phone I used the rope to keep the cam chain tight against the gear in the main timing chain. I pulled one head at a time and IMHO it was better than removing the timing chain cover, pulling the chains and then having to reset timing. The only drawback, I wouldn't use this technique to pull both heads at once, lol.
 
#8 ·
Well hopefully this technique will help someone if they need to simply replace head gaskets, etc.
 
#13 ·
Thanks for all of the pics and the great time saving idea!

Did you go with the normal procedure of rotating to TDC1 and then compress the valves, and then remove the cam and all of that stuff? I've got everything stripped down and am at about that part. Just need a little advice.

Also, how'd you remove the cam gear from the cam?

Thanks
 
#14 ·
hey buddy awesome build man how much hp are you pushing .and also iam thinking or rebuilding the top end of my 4.7 .so my question is you changed your head gaskets .did you do anything to the bottom end of the motor or just add on .and how do you think it would hold up if i just rebuild the top of mine thanks any info would be great .