Junkyard Find: 1967 Chevrolet P20 Adventure Line Motorhome

Murilee Martin
by Murilee Martin

Back in the 1960s and 1970s, quite a few Midwestern RV manufacturers would take new Chevrolet Step-Vans and build them into motorhomes. Most spent productive decades ferrying retirees between Michigan and Florida, then settled into long-term retirement in driveways and dirt lots, serving as homes for many generations of raccoons, possums, and wasps.

Here’s a Kansas-built P20-series RV in the San Francisco Bay Area, giving up some of its components while awaiting the cold steel jaws of The Crusher.

I couldn’t find much information online about the RVs made by the Adventure Line Manufacturing Company in Parsons, Kansas, though there is a bit of firearms-forum discussion about the AR-15 magazines made by the company a few years after building this vehicle.

RVs are always the most disgusting vehicles found in the inventory of self-service wrecking yards, invariably packed with hantavirus-saturated rodent detritus and bottles full of crank piss (or worse). I have spent far too much time in junked RVs, ever since I made the stupid decision to heat my garage with a Winnebago propane furnace.

The engine is gone, but it would have been a pushrod straight-six ranging in displacement from 194 to 292 cubic inches with an output between 120 to 170 horsepower. That’s right, this massive steel box got its motivation from an engine making horsepower very similar to that of a 2017 Corolla (though the 292 did put out 275 lb-ft of torque). Think about that next time you complain about modern econoboxes being underpowered.

I couldn’t make out the price on this tattered FOR SALE sign, but I’m sure it was nowhere near low enough.

Coming down the hill from Donner Summit with these brakes must have been exciting.

Made when men were men and California families vacationed in hoppy, clattery, leaf-sprung delivery vans.








Murilee Martin
Murilee Martin

Murilee Martin is the pen name of Phil Greden, a writer who has lived in Minnesota, California, Georgia and (now) Colorado. He has toiled at copywriting, technical writing, junkmail writing, fiction writing and now automotive writing. He has owned many terrible vehicles and some good ones. He spends a great deal of time in self-service junkyards. These days, he writes for publications including Autoweek, Autoblog, Hagerty, The Truth About Cars and Capital One.

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  • Triman95 Triman95 on Jul 14, 2023

    So happy to hear about your find! I'd love to have one myself. For pics and info, I'd have to talk to my parents, aunt and uncle and see if they have any pics or info. I am happy to do this, but it may take a while. You might post an ad in The Parsons Sun and see if any ALMC employees are still around. They may have some information for you.

  • Penny Walters Penny Walters on Jul 28, 2023

    This Chevrolet P 20 adventure line is the closest we could find. I am trying to figure out what this motorhome was that we had when I was a kid. Would love to find one and restore it!

  • SCE to AUX All that lift makes for an easy rollover of your $70k truck.
  • SCE to AUX My son cross-shopped the RAV4 and Model Y, then bought the Y. To their surprise, they hated the RAV4.
  • SCE to AUX I'm already driving the cheap EV (19 Ioniq EV).$30k MSRP in late 2018, $23k after subsidy at lease (no tax hassle)$549/year insurance$40 in electricity to drive 1000 miles/month66k miles, no range lossAffordable 16" tiresVirtually no maintenance expensesHyundai (for example) has dramatically cut prices on their EVs, so you can get a 361-mile Ioniq 6 in the high 30s right now.But ask me if I'd go to the Subaru brand if one was affordable, and the answer is no.
  • David Murilee Martin, These Toyota Vans were absolute garbage. As the labor even basic service cost 400% as much as servicing a VW Vanagon or American minivan. A skilled Toyota tech would take about 2.5 hours just to change the air cleaner. Also they also broke often, as they overheated and warped the engine and boiled the automatic transmission...
  • Marcr My wife and I mostly work from home (or use public transit), the kid is grown, and we no longer do road trips of more than 150 miles or so. Our one car mostly gets used for local errands and the occasional airport pickup. The first non-Tesla, non-Mini, non-Fiat, non-Kia/Hyundai, non-GM (I do have my biases) small fun-to-drive hatchback EV with 200+ mile range, instrument display behind the wheel where it belongs and actual knobs for oft-used functions for under $35K will get our money. What we really want is a proper 21st century equivalent of the original Honda Civic. The Volvo EX30 is close and may end up being the compromise choice.
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