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Vehicle Specifications and Contact Information


Road Runner
Mileage Or Exempt

Engine & Transmission

Engine Type
Engine Size
383 V8
Engine Number
Transmission Type
4 Speed Manual
Transmission Spec


Body Color
Body Style


Interior Color
Seating Type
Shifter Type
Center Console

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Contact Details

Fully Restored California Car! Numbers Matching 383ci and 4 Speed!

1968 Plymouth RoadRunner

VIN RM23H8G250021

This beautiful two door hardtop spent its entire life in California. The frame-on restoration was done in 2006. See our photos for information on the numbers for the engine and transmission. Receipts documenting the entire restoration are included in the sale.

VIN Decoding:
R = Plymouth Belvedere/Satellite Car Line
M = Medium Price Class (Road Runner)
23 = 2 Door Hardtop
H = 383 1-4BBL CID
8 = 1968
G = St. Louis, MO Assembly Plant
250021 = Serial Number

Fender Tag Decoding:
Row 1:
R = Plymouth Belvedere/Satellite Car Line
M = Medium Price Class (Road Runner)
23 = 2 Door Hardtop
62 = 383 1-4BBL CID (330 HP)
3 = 4-Speed Manual Transmission
44 = F70 x 14 Redline Steel Wheels
529 = May 29, 1968 Scheduled Production Date
315800 = Shipping Order Number
Row 2:
2: 535 = Drip Rail Moldings
A: Axle: 404 = 3.23:1 8 3/4” Rear End
X: 405 = Sure-Grip
TRM: H4B = High Trim Grade, Light Blue Vinyl Split Bench Seat
PNT: QQ1 = Bright Blue Metallic Body/Roof Paint Monotone
U: U = Light Blue Upper Door Frame
S: 31W = White Horizontal Accent Stripe
Row 4:
R: Radio: 421 = AM Music Master Radio
T: Gauges: 577 = Tachometer

Production Numbers:
1968 Plymouth Road Runner Total Production: 44,598
1968 Plymouth Road Runner Hardtop Production: 15,539
1968 Plymouth Road Runner Hardtop 383 1-4BBL: 15,166
1968 Plymouth Road Runner Hardtop 383 1-4BBL 4-Speed: 6,686

Casting Number: 2468130
Displacement: 383 cu. In.
Casting Date: 11/28/66 (Period Correct for car)

4 Speed
Part Number: J2801543 1967 383 B-body (Correct for this car)

Rear End:
8 ¾” Rear End
Casting Number: 2881489
Gear Ratio: 3.23:1


Numbers Matching 383ci/335hp Engine, Rebuilt with 1,000 miles
Numbers Matching 4 Speed Manual Transmission
Sure Grip Rear End with 3.23:1 Gear Ratio
Holley Street Avenger 670cfm Carb
Original Carb is Included in the Sale
Manual Drum Brakes
Manual Steering
Dual Exhaust System with Dual Tips
Rebuilt Alternator
New Heater Core
Parking Brake
Rebuilt Front End
Replaced Gas Tank


Beautiful Blue Metallic Paint, Painted in 2006
Great Looking Grille
Gorgeous Chrome Bumpers
New Front Windshield
Doors Fit and Operate Properly
Door Lips and Jambs are Clean and Solid
Stainless Trim is in Great Shape
Quarter Panels are Solid and Straight
New Trunk Floor is Solid and Beautifully Painted
Mat and Spare Tire in Trunk
Original Drop Downs
Nice and Solid Frame
Undercarriage has been Restored
Floor Boards Look to be Original
Undercoating is in Great Shape
Pinch Welds in the Rockers Look Great
Solid and Clean Wheel Wells
Correct Magnum 500 Wheels
New BF Goodrich Radial Ta's 225/70/15 Front and Rear


Complete Interior Restoration
Hurst Comp Plus Shifter
Pioneer FM/CD radio
Original Radio is Included in the Sale
Beautiful Steering Wheel
Dash is in Excellent Condition
Great Looking Door Panels
Beautiful Upholstery
Seatbelts Front and Back
New Weather Stripping
Headliner Fits Tight Across
Working Dome Light
Speedo Works
Tach Works
Radio Works
Fan Works
Wipers Work
VIN & Fender Tag Decoding

Don't Miss Out! Call Tom 7 Days a Week at 248-974-9513!


The Plymouth RoadRunner was a performance car built by the Plymouth division of the ChryslerCorporation in the United States between 1968 and 1980. In 1968, the firstmuscle cars were moving away from their roots as relatively cheap, fast cars asthey gained options. Although Plymouth already had a performance car in theGTX, designers decided to go back to the drawing board and reincarnate theoriginal muscle car concept. Plymouth wanted a car able to run 14-second timesin the quarter mile and sell for less than $3000. Both goals were met, and thelow-cost muscle car hit the street.

Paying $50,000 toWarner Brothers to use the name and likeness of their Road Runner cartooncharacter (as well as a "beep, beep" horn, which Plymouth paid$10,000 to develop), and using the Chrysler B platform as a base, Plymouth setout to build a back-to-basics muscle car. Everything essential to performanceand handling was beefed-up and improved; everything nonessential was left out.