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Old 09-16-2022, 04:35 PM   #15
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YES. Not to long after the 8.1L was discontinued by GM another company was claiming their "new" engine could be configured as a direct replacement for the 8.1L that WCC used.

A year or two after the demise of WCC, I believe it was Spartan that did a PR saying they were going to use this "new motor" in an RV chassis. However, I remember THAT announcement was later said to have been deemed "premature". I don't believe any RV chassis maker ever used it, and that MAY have been due to the cost of getting "on-highway" emissions certification from the EPA.

All that said, here is a link to the company that makes it:

https://psiengines.com/products/8-8-...ransportation/
The 8.1 was a good engine. Tough really. I had a customer who bought 2 new 2006 GMC K-3500 pick ups and by 2010 he had his first engine failure. 270,000 miles + in a truck hauling a large goose neck cattle trailer which ran nearly all day and night. His second failure came at just over 300,000 miles. Both engines were beyond reasonable repair. Rather than rebuild the engines or replace them he scrapped both trucks and bought all new all over again. Everything else was about in the same condition as the engines were. Not a square inch of straight sheet metal on either truck. What a driver couldn't smash a cow or a bull could.
I asked the owner once how often he changed the engine oil. He told me he never had. When the oil light would start coming on they would change the oil filter and fill the engine back up with oil. I took this as a testament for the 8.1 when I started shopping for my Class A. Nothing against Ford but I have always leaned toward GM products anyway. That may have come from the 16 years I worked for a Cadillac / Oldsmobile dealership from 1963 to 1979 then a Buick dealership from 1979 to 1983 when I started my own repair shop and later added on my auto machine shop in 2001.
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Old 09-17-2022, 04:13 PM   #16
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Ed Gray

So do we have a WCC Engine wizard on this forum?I mean there searching for a engine based on the chassis VIN. and year so there must be some differences. I would,t want to purchase a 8.1 and none of the engine transfer components would fit or comply. A parts book would be nice. I think someone before talked about a Hayes or chilton book for engine reference? Will the engine be able to be removed thru the front or will the front axle have to be removed. Shop estimates 40 hours labor. 8,000for engine plus$ for what else may be needed or required to maintain engine warranty. Thus 16,00$ Est. Thanks for help from all.
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Old 09-17-2022, 05:37 PM   #17
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Imho.. get engine from salvage yards.. wh used GM / Chevy light duty pickups trucks.. nothing is different.. look for same yr and go with something like.. ck3500.. and maybe if you have a little more budget.. put new clean cam and lifters with true rollers timing chain.. also have very close inspection of radiator.. that's what I feel I would do..
Good luck and keep us posted
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Old 09-18-2022, 10:26 AM   #18
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Who on this forum is the 8.1 EXPERT. Someone with personal experience not secondhand please. Thanks
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Old 09-18-2022, 11:53 AM   #19
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Who on this forum is the 8.1 EXPERT. Someone with personal experience not secondhand please. Thanks


Try sending a PM to DriVer. I know he has experience with replacing his 8.1L after it logged waay over 100,000 miles
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Old 09-19-2022, 10:27 AM   #20
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As far as "experts", I would search for an engine builder that works with this specific engine. They have a following for sure. I also would get a second opinion on the cost of swapping the engine. That seems really high to me but I am not familiar with your coach.

Maybe this will help with the search...

What Vehicles Use the L18 8.1 Vortec?
All vehicles using the 8.1L (496 cid) V8 used the L18 engine as no other variants were produced.

2001-2006:

Silverado 2500HD and 3500HD
Sierra 2500HD and 3500HD
Chevy Suburban 2500
GMC Yukon 2500
Chevy Express and Avalanche
Chevy Kodiak

2001-2009:

Malibu and MasterCraft boats (engine made by Navistar)
Various RV’s and motorhomes
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Old 09-19-2022, 10:43 AM   #21
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I would think either one would be good, just have to find one that will mount to the Allison tranny.
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Old 09-20-2022, 12:47 PM   #22
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I think $16000 is VERY HIGH. Hell, I'll sell my whole rig for $25000 and it has 30k miles on it and has brand new Leveling controller and LR slideout control.
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Old 09-20-2022, 10:28 PM   #23
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engine

Have your existing engine rebuilt. wont cost 16K
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Old 09-21-2022, 09:55 AM   #24
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Have your existing engine rebuilt. wont cost 16K
Could be a possibility. The engine would have to be totally torn down and inspected thoroughly to get an accurate estimate of a rebuild. If the crankshaft is bad and a main bearing spun in the block it would add a significant amount to any estimate. The block would have to be line bored. If the camshaft seized to a bearing and the cam bearing spun in the block the block would be thrown away. Parts prices have gone through the roof and availability is sketchy at best.
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Old 09-21-2022, 11:23 AM   #25
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eng

Doesnt Raylar Engineering make parts for 8.1 engine?
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Old 09-21-2022, 07:35 PM   #26
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Have your existing engine rebuilt. wont cost 16K
You'd have to convince a (the) shop of that. If they quoted him 16K it will be higher than that by the time it's done. That is a guarantee.



I would not even consider paying that. The rig is likely not worth 16K if not much more than that. Then there is the time factor and are you on the road away from home? And what about warranty after the work?
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Old 09-23-2022, 03:41 AM   #27
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To Driver

Driver I don,t know how to send a message to you. Please respond if you read this. If you can read all the replys to my issue. I get the feeling from the following that I should put MH in the dumpster because it really isn,t worth anything. Help
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Old 09-23-2022, 09:39 AM   #28
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Quote:
Originally Posted by fayjim2 View Post
Driver I don,t know how to send a message to you. Please respond if you read this. If you can read all the replys to my issue. I get the feeling from the following that I should put MH in the dumpster because it really isn,t worth anything. Help
You can PM DriVer on the site and I should be able to see it.


My eMail still is mpelchat@irv2.com.
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