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ID Decode: #494876H*****, 4=Buick, 94=Riviera,
87=2dr Sport Coupe, 6=1966, H=Flint Assembly Plant,
939897=Production Sequence.
Data Tag Decode: 03C=March 3rd Week Production, ST
66-49487=1966 Buick Riviera Sport Coupe, EUC181655=Body,
Trim 618D=Black, Paint LL=Shadow Turquoise, Options
EXY=6-Way Power Seat, 2KR=Rear Speaker, 4F=Remote Mirror.
Power-Train Decode: Stamp Block Front/Top
MZ=425CID/360HP 2x4bbl Super WildCat (factory), 314=shift assembly
code, 6H939897=Vin#Match, Transmission Tag
BS-66=1966 Super Turbine 400 "GS", Rear Axle PY=3:42
Ratio. (*see detail photos for more*)
Facts: Total 45,348 Production (Includes 5,718 GS
Option), Of those, only 179 GS models were factory
equipped with the Super-Wildcat 360HP option). *Note: The
SUPER WILDCAT option (dual 4bbl) was a dealer option until
3/66, The engine code MZ was stamped on the engine
block only after 3/66.*
Research: "Evolution of the Riviera-2nd Gen"
Credit To > "Riviera
Owners Club": "The only engine offered was the 425ci,
340 hp, code "MW", with a single 4 bbl Quadra-jet
carburetor. Initially the GS package included a single
carburetor with a chrome air cleaner, with the aluminum
valve covers, heavy-duty suspension, posi-traction, 3.42
rear axle, whitewalls or red line tires and GS monograms
on the fenders and on the glove box. Until March of '66
the dual-four option was only available as a dealer
option, after which it could be ordered from the factory
and had a "MZ" engine code." |
