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I am wanting to install the auxiliary fuel tank on the passenger side, and after removing the bed from my M1028, I discovered that the original tank on the drivers side is in pretty bad shape. So I have decided to buy 2 new tanks and replace the original at the same time I install the auxiliary...

The P400 pan is not hitting anywhere..... yet. And it may NOT hit. Just looking at it though, it’s going to be real close. I will know for sure once the new engine is hovering over the hole. Even if the P400 does clear the factory crossmember, I may still order one of those ORD units for...

Dayum. Just found this - http://www.rubberduck4x4.com/shop/h1-hummer/performance/engines-and-transmissions/p-400-long-block/?sku=GEP18002683

I've watched Ebay for the past couple of years for P400 engines and/or parts. It's like watching for parts for the Space Shuttle - there just is nothing there. Although I cannot confirm, but I have heard that only 400 of the P400 long blocks were released for civilian consumption. My only...

I purchased my P400 long block from LeRoy Linza (LeRoy Diesel) in 2017. I believe I may have gotten the last one GEP released to the public. Around the same time LeRoy was in the process of tearing down another new P400 long block to see what made it tick. He was documenting his “rebuild”on his...

Thanks Skinny. ORD has one I might look at once I get the P400 swinging over the frame. If necessary I’ll just fabricate my own. Whatever it takes, that P400 / 700R4 / NP241 will be bolted up.

Not that I am in the market for an Optimizer 6500, because I already have my new drivetrain assembled, however for the benefit of other SS members, I wonder where the best place to purchase a NEW Optimizer long block?

The "engine above the Optimizer 6500" to which you refer is the P400. If I can ever get through these darn surgeries, I plan to install my P400 into my M1028. And I can almost guarantee that I will need to modify my engine crossover frame to accommodate the P400 girdle and oil pan. The P400's...

Yes that is my understanding. Not sure about the oil pan. It may fit just fine. Maybe someone with specific experience can chime in.

Here’s a very informative article on the Optimizer engine - https://www.enginebuildermag.com/2007/06/the-optimizer-6500/?fbclid=IwAR1laEHjrv1RbuAD044-oJ5fbCtg1uBKlZmgDLACaLakbuPTiOG1k4CO5oo

Dayum it's good to hear 'ol CUCVRUS back on here !

Thanks !

Hey Sir - how did you adjust the TV cable? Did you adjust it at the bracket or did you install a gauge onto the transmission? Chris at Bowtie recommends using the gauge, however I believe an accurate adjustment can be made at the bracket.

That looks about right to start with, however I believe it could be advanced slightly more. If there is wear between the timing gear and the cam gear, and I would assume there would be if your engine is original, the existing timing would not be not much different than TDC. I suggest you...

I agree with Recovery, keep the idiot lights and add gauges. Leave the factory OEM instrument panel as shipped from GM and install the new gauges as stand-alone instruments. Also make certain the idiot light bulbs in the factory instrument panel are not burnt out by paying attention when the...

Mike - timing too advanced or retarded will indeed impact performance. Have you looked at the timing marks on your pump? If not, shine a light down in front of the pump and see if the 2 timing lines line up. My ‘85 civi as well as my current M1028 seem to have the best power with the timing...

I've enjoyed following you guys' comments about proper methods to achieve correct timing. I was hoping you could come up with a reputable way to set the timing correctly with a timing light. Having said that, I will share with you the following - Way back in 1985 I had a GM master mechanic...

I know exactly what it is. Several years ago I had a Chrysler which had that ticking sound and it almost drove me crazy. I searched online and discovered a YouTube video which explained the problem and exactly how to fix it. Turns out, it was that darn Turbo Encabulator. Give me a minute and...

Forgive me, but why would anyone want to heat their radio?

I agree with ehuppert. A 700R4 with 3.08 gears will stay in 3rd gear most of the time. Especially if there is any load in the vehicle. Or headwind. Not being grumpy, just realistic. Save your money and stay with what you have.