March 2011

A Whole New Way To Fuel Your Passior For Classic Cars

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1975-1980 MGB MK l\/

The MK IV bowed at the London Motor Show in October 1974 and hit the US late in 1975. It had black Polyurethane bumpers. "Rubber Bumper" cars were shunned for years, but are now getting popular, since the last MGB is 30 years old. A new single-carb engine and new gearbox ratios were designed to increase gas mileage. An MGB GT Jublee Edition with British Racing Green paint and gold V-8-style wheels was produced during 1975. before the GT left the U.S.

Production of the V-8 MG

continued into 1976, but the bulk of sales still went to the fours. The roadster added a zip-in rear window. Standard 1977 colors were Brooklands Green. Chartreuse, Damask Red, Flamenco, Glacier White, Sandglow and Tahiti Blue. Interior color choices were Autumn Leaf or Black.

By 1978, the MGB was a $5,649 car that weighed 2,338 pounds. Standards features of later editions included twin electric cooling fans, a tonneau cover, power front disc brakes, a four-spoke steering wheel with padded rim, 165SR14 tires and a zip-cut rear window. In 1979, the MGB price rose to $6,550.

MG's last year was 1980, when you got $50 back after handing a dealer $8,000 for a B. Production halted in October 1980. The last U.S. model was the 1980 "Limited Edition." It was all black with gunmetal-gray stripes along lower body and a front spoiler. The last 1,000 "Limited" models were built for the home market only and included 420 Bronze roadsters and 580 Pewter GT coupes. CC&P

Mccum got $15,000 tor a 19,C00-original-mile MGB at the May 2010 Indy auction.


Roadster Price (POE NYC) MK IV DIMENSIONS (1975 *)

Wheelbase O.L. Length Weight Roadster Height (Roadster) Width



Bore x Stroke Displacement Compression Ratio HP @ RPM Torque @ RPM Carburetion


Front Suspension Rear Suspension Brakes Tires

(*) See text for important year-by-year charges.

MGB Roadster $4,350 (4-cyl)

62.5 at 5500 rpm 86 Ib-ft at 2500 rpm (1 ) Zenith carburetor

V8 ENGINE SPECS (1973-76)

137 at 5000 rpm 193 Ib-ft at 2900 rpm Twin S.U. carburetors

Wishbones; coi! springs; lever shocks

Rigid axle; sem elliptic leaf springs; lever shocks

Front disc/rear drum

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