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Signed up for Alldata and looking at diagrams for the 98 K3500 and my 2000 Tahoe, it appears that most everything is a separate system. Looks like I'll be able to split the dash harnesses and then pick/choose parts from each and combine into a new loom. Not as bad as I was thinking it was...

Thanks guys, definitely makes sense that it cranks faster due to the lower compression ratio. Sounds like it's a non-issue. I'm still debating over the P400 motorhome. I've got a 45ft trailer, BUT.... The motorhome is 11ft tall so that would put me over-height. That and I don't believe the...

Thanks guys for the info on the 18:1 engines. I do have one more question about the p400. Dimensionally, is it of similar size to the standard 6.5? Reason I ask, I saw a pic of a p400 bottom end. It appears that the oil pan flange sits either flush or below the main caps. As where on my 6.5...

Sent a message. Thanks again for the help and the phone call earlier. I have always been set on standard compression ratio simply because I had read where lower compression is harder to start in the winter. But that may not be true or may be blown out of proportion. Will do some research on here.

I'll reach out. Thanks!

Looks like his rv is 6.5hrs from me. I looked thru at his pics. Do you think the engine is still fine? Also, would I need different heads for truck applications? Realistically, Ive got a 45ft trailer with a winch. And also a couple of sky tracks here at the shop which would make quick work...

Yeah, I'm keeping track of everything. This is my list as of today. Doesn't include any internal engine parts or machine work, nor does it include the PCM tuning or lift pump setup that I will need: Promax Heads $960.00 GM Headgaskets $90.00 Intake/Pump Gaskets $26.00 New...

I did end up stripping the block the rest of the way down last night. Pulled the cam, lifters, oil pump drive, etc. Cam did have a few rust spots on some lobes. I'll buy a new one if required. Dropping the block off at local machine shop today so that they can look at it and let me know...

Other pics that couldn't fit in previous post. Previous pics and these cover all main webs. If you see anything sketchy please let me know!

Got her all broke free. Between soaking with the wd40 and smacking the tops of the pistons with a wood block, it finally popped. Cylinder number 1 was the most stuck. Had to leave that one in the block until the crank was out of the way so I could give it a real solid "tap" lol That...

Pulled one up at the front of the engine that was accessible. Looks like it's worn thru the matte silver coating (still visible on the edges) but doesn't look too bad to me? Applied more wd40 rust release spray on the pistons and will let that soak overnight. I did see some of the rust on the...

Got the humvee engine torn down the rest of the way tonight. Still can't get it to turn over, but I haven't beat on it too much yet. Just tapped on a couple of accessible pistons with a deadblow. Turned the engine upside down and am now soaking the back sides of the pistons with wd40. Maybe...

Yeah, that's from the blue crew cab. The dash was already busted on the top side from some goober letting a cb radio sit up there and bounce around. The dash in the white truck is actually in a lot better shape.

Haven't posted in a bit, but still making progress. Everything I ordered from Quadstar (list on page1) delivered before Christmas. LOTS of boxes on the front porch. Lol Today it was 75 degrees, so we took advantage and got the blue truck mostly stripped down. Now I need to get wiring...

Dang, I didn't even think about reaching out to Travis @ RD4x4 about an engine. LOL I've bought quite a bit of stuff from him over the years. Have been a member on HML for a several years, never really active and haven't been on there in a while.. All that's understandable on the DS4. I've...

Thanks man, if I can get thru this engine build I'll be sailing smooth!

Lastly; Yes, I have done several different chevy builds in the past and have developed my own suspension system. Very rarely do I find anything off-the-shelf that satisfies me. Seems that most want big lifts but I'm the exact opposite. I like big tires, but try to keep the suspension height...

Forgot to mention that I have owned several different civilian Hummer H1s over the years (HMC4's, HMCS's). When I was young, I had posters and pics of the H1 on my bedroom walls whereas most had posters of Ferrari and Lamborghini. LOL All of mine had the DS4 pump, and I had no complaints with...

I feel like ya'll are questioning my sanity 🤣 And that's ok. To clear up a few things; Yes, I am aware of what I'm building and the costs associated to finish it. I also feel like I have pretty realistic goals as far as the engine goes. Near-stock power levels with some supporting mods...

The blue truck is actually a crewcab longbed k3500. Appears to have been ordered for the forest service by the tag on the door. Real basic interior, bench seats, manual windows...etc. It's not in bad shape. No rust on it anywhere and the body is straight. If someone wanted it after I get...