this is all i could decode
JH23:
Dodge Challenger
High
2 Door Hardtop
H1B: 340 275HP 1-4BBL 8 CYL
1971
Dodge Main, Hamtramck, MI, USA
416885: Sequence number
E55: 340 cid 4 barrel V8 275hp
D32: Heavy Duty Automatic Transmission
GB5: Bright Blue Poly / True Blue Iridescent Exterior Color
H6X9: Trim - High, Vinyl Bucket Seats, Black
000: Full Door Panels
602: Build Date: June 02
E36011: Order number
GB5: Bright Blue Poly / True Blue Iridescent Top Color
I: International (export) Specifications
C55: Bucket Seats
G11: Tinted Glass (all)
J54: Sport Hood
M21: Roof drip rail moldings
N41: Dual Exhaust
N42: Chrome Exhaust Tips
R11: Radio Solid State AM (2 Watts)
V7B: Accent Stripes, Light Blue
26: 26in Radiator
EN2: End of Sales Codes