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Possible Engine Build for my 93 Truck

Thanks Will. I will take another look at #3.

are the felpro head gaskets better to use than the full composite ones like Mahle shows? and if going with the +.010 thicker ones, will that harm the compression ratio or have a power/economy loss over standard?
 
I managed to get all of the valves lapped on one head this evening and almost all of the springs and all cleaned up using my ultrasonic cleaner. I still have 6 more valves, springs, and all yet to clean.

a couple of the valves have a small amount of pitting on them, but they cleaned up and lapped well. I may go back and do another round on them tomorrow to see if I can get all the pitting out. it's only a single pit here and there so there not bad at all and I think they will seal up as is. all of the valve seats cleaned up and lapped just fine.

I was thinking also wondering if I should try and polish lap them. I watched one of the youtube videos where a guy used some auto paint compound and polish to lap them and give them a machined polished look. I do have some jewelers rouge bars that I was trying to use to lap injector nozzles. would that be a good idea to try and polish lap the valves as well?

Right now I am thankful that I have been able to get this far with the heads from that other 6.2 and not have to hope the heads on the old worn out 6.5 in the 93 are good. plus I won't have to tear it down when I pull it.


I had my wife stop by harbor freight to get me a set of small wire wheels and a can of wd-40 (I ran out) along with a roll of shop paper towels. I plan to use the paper towels to wipe all the gunk out from the cavity where the lifters are in the block. I really don't want to wash it with too much cleaners and wash all the oil from the cam or crank bearings.

I also used one of the wire wheels and chucked it into my bench top drill press to assist with cleaning all the carbon off the under side of the valves as they came out of the ultrasonic cleaner!
 
I found a set of the o-ring type valve stem seals on the jungle site that I can have here by Monday, so I ordered them so I can at least get the heads back together hopefully by the end of this weekend. (I'm off on Monday's now from work)
 
@dieselolds I ordered one of the kits you linked for the IP. are there any special tools I need? like a tool or sleeve to install the shaft umbrella seal?

I saw these looking on amazon, but idk if I need one or if these are right for my IP

Amazon.com: Drive Shaft Umbrella Seal Installer Compression Installation Tool 13371 for Stanadyne Roosa Master Diesel Fuel Injection Pump Compatible with John Deere JD256 : Automotive

Buy Drive Shaft Umbrella Seal Installer Compression Installation Tool 13371 for Stanadyne Roosa Master Diesel Fuel Injection Pump Compatible with John Deere JD256: Drive Shaft Assemblies - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com

Amazon.com: 13371 22727 Injection Pump Seal Tool for Roosamaster for Stanadyne Drive Shaft Seal Install Tool Kit Diesel Fuel Injection Pump Drive Shaft Seal Installation Tool : Automotive

Buy 13371 22727 Injection Pump Seal Tool for Roosamaster for Stanadyne Drive Shaft Seal Install Tool Kit Diesel Fuel Injection Pump Drive Shaft Seal Installation Tool: Tool Sets - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com
 
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I saw one of you guys mentioned filling the intake/exhaust ports with fluid to test if the valves are sealing up after the lapping job. I was thinking about some way of a preliminary test without making a mess like maybe applying air pressure into the ports.

I have made rubber tips for my blow gun in the past using my 3D printer, I wonder if I could print one large enough to seal on the ports and apply air pressure along with a squirt of soapy water on the valve face. I will also need to block off the EGR port on the head too.
 
I always just poured some sort of household cleaner into the ports.If nothing runs out the seal is okay.The valves should not leak.You could make a test plate if you wanted and induce air into the port.Either way will work out perfect.
 
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