Thread Tools Display Modes
Old 05-15-2018, 12:31 AM   #1
New Member
Join Date: Sep 2017
Location: San Diego, CA
Posts: 4
Chassis: 1974 Crown Supercoach Converted
Engine: Detroit 671
1974 Crown Supercoach Converted Detroit 671 5spd

1974 Crown Supercoach Conversion for sale. California bus through and through. Was in service in San Jose originally but bought from district in 1990. Since then it has gone through very thorough conversion (list below) and been on only 3 long trips: California to Florida and back: mid 90s, California to Ohio and back: early 2000s, and San Diego to Seattle and back, 2010.
Mid engine Detroit 671 with 5 spd manual transmission. As close as we can tell, 350k miles. Had the engine inspected and serviced 8 months ago. Runs strong, just took it on a 300 mile day trip to Baja California Mexico Wine Country last weekend, 5/12/18. Current registration in California as a motor home and smog exempt.
2 new Goodyear G751s on Alcoa rims on the front and four slightly used Sumitomo St727's on the rear.
Custom trailer hitch and electrical connections for towing a run around or putting on your dirt bike rack.
Two little surface rust spots, one on the door, and one on the rear window hatch. All window seals in excellent condition.

Conversion done by a family friend who was a cabinet maker so all cabinets are hardwood and in bristol condition. One of the best conversions I have seen. All systems work well except for the custom under mounted Kohler generator that needs a new carb.
Conversion includes:
Laminate Flooring
Newer Upholstery
Hardwood cabinets
Duel fuel fridge and freezer (propane or electric)
4 bunks, 1 full size bed in the back, drop down dining sleeps a child, pull out bench sleeps 2, so all in all sleeps 8 or 9.
Hot water heater
Toilet and bathroom sink
Two sink kitchen sink
Water filter
Cabin air conditioner
Remote battery check and fuse panel
Black tank
Grey tank
Fresh water tank
Front bench with 2 seat belts, side facing long bench with 4 seat belts
Dual battery set-up

Asking $24K obo
I can show it in San Diego. You can email me directly at for more details for pictures.
Attached Images
File Type: jpg IMG_6976.jpg (220.8 KB, 60 views)
File Type: jpg IMG_6977.jpg (215.8 KB, 53 views)
File Type: jpg IMG_6973.jpg (235.1 KB, 51 views)
File Type: jpg IMG_6972.jpg (218.2 KB, 49 views)
File Type: jpg IMG_5297.jpg (342.8 KB, 50 views)
File Type: jpg IMG_6991.jpg (194.2 KB, 69 views)
File Type: jpg IMG_6999.jpg (152.9 KB, 59 views)
File Type: jpg IMG_6985.jpg (160.0 KB, 52 views)
CrownBusAdventures is offline   Reply With Quote
Old 05-19-2018, 10:25 PM   #2
New Member
Join Date: Sep 2017
Location: San Diego, CA
Posts: 4
Chassis: 1974 Crown Supercoach Converted
Engine: Detroit 671
Adding some more details.

Length: 35 ft.
Gas Mileage: 10-12 mpg average clocked on our trip to Seattle and back.
Engine: Detroit Diesel 6-71
Transmission: 5 Spd Manual
Configuration: 426 cu in (7.0 L) I6 Mid Engine naturally aspirated
Production Years of Engine: 1963-1991
Diesel Tank: 100 Gallons
Battery: dual 8D batteries
Wheels: Front are Alcoa polished aluminum, rear dully are steal
Tires: Front, new Goodyear G751s, rear Sumitomo St727
Storage: Large rear compartment in back of bus

Floor: is sub thick rubber with vinyl laminate. Installed the vinyl laminate this past summer, 2017.
Walls: have a 1/4 inch layer of RV insulation behind sanded and finished/painted plywood.
Ceiling: is carpeted throughout
Toilet: is black water
Cabinets: finished natural alder, plenty of cabinet space
Kitchen Sink: double well stainless with pull out faucet
Four burner stove/oven: propane
Water Filter for drinking water
Sitting/Sleeping: 78" long bench behind drivers seat folds down into long twin size bed, kitchen table folds down for child sleeping spot, two bunks on either side, back "master" bedroom has full size mattress and overhead cabinets.
Black Tank: 30 gallons
Grey Tank: 50 gallons
Fresh Water Tank: 100 gallons
Hot Water Heater: 5 gallons
Electrical: 60 Amp RV Power Converter and Battery Charger with TCMS Charge Wizard, INTELI POWER 9100 PD9160A. 30 Amp circuit and 2-20 amp breakers for Electrical Hookups. No solar installed.
Generator: Kohler Semi-Truck generator with K321 engine. Remote start. Needs a new carburetor.
AC: Duo Therm Brisk Air by Dometic 13,500 BTU. Works well and used last summer. Big enough to keep the bus cool in the California heat which is a dry heat.
Heaters: Front and Back run on propane with thermostat
Fridge: Dometic Dual Fuel Americana Fridge/Freezer
All windows have screens
Awning: has a 25 ft roll out awning in excellent condition
CrownBusAdventures is offline   Reply With Quote
Old 05-19-2018, 10:50 PM   #3
Bus Nut
Join Date: Jun 2016
Location: Orange County, CA
Posts: 574
Year: 1990
Coachwork: integral
Chassis: Crown Supercoach II (rear engine)
Engine: Detroit 6V92TAC, DDEC 2, Jake brake, Allison HT740
Rated Cap: 37,400 lbs GVWR
So you could buy some miserable crappy used RV made out of stapled-together pressboard and plastic with a leaking roof and mold growing everywhere, or a beautiful hand-made custom motor home on the very finest heavy-duty school bus to ever be made anywhere. Hardly a difficult choice.

I hope it finds a good home with someone who can truly appreciate it and give it the care it deserves. It's a bonzer beaut.

Iceni John is offline   Reply With Quote
Old 05-19-2018, 10:55 PM   #4
New Member
Join Date: Sep 2017
Location: San Diego, CA
Posts: 4
Chassis: 1974 Crown Supercoach Converted
Engine: Detroit 671
Thanks John! Appreciate the understanding. Feel the same way. Took me 6 months of going back and forth to finally decide to list it. Want like hell to keep it but more kids on the way and bought a new house in the city and no where to store it.
CrownBusAdventures is offline   Reply With Quote
Old 05-25-2018, 08:03 PM   #5
New Member
Join Date: Aug 2017
Location: California
Posts: 2
Still for Sale?

Very interested.
melonius88 is offline   Reply With Quote
Old 05-25-2018, 09:01 PM   #6
New Member
Join Date: Sep 2017
Location: San Diego, CA
Posts: 4
Chassis: 1974 Crown Supercoach Converted
Engine: Detroit 671
Yes melonius88, still for sale.
Thanks. Jeff
CrownBusAdventures is offline   Reply With Quote

california registration, crown bus conversion, detroit diesel, motor home

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 07:00 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.