The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13

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Lot 97
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck
1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR

Sold for US$ 143,000 inc. premium
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck
1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR

Chassis no. 400-13

305 c.i. OHV Traco Chevrolet V8 Engine
Four Weber 48IDA Downdraft Carburetors
Est. 500bhp
5-Speed Manual Transmission
Independent Front and Rear Suspension
4-Wheel Disc Brakes

*One of some 24 M10B chassis built in period
*Documented history from new
*Winner of its first race
*Registered with the Formula 5000 Association
*Race, and title winning, Gordon Coppuck design



THE MCLAREN M10B FORMULA A/5000 CARS

Weighing barely 1300 pounds and with as much as 500bhp on tap from a stock-block five-liter Chevrolet V8, these amazing race cars offered astonishing performance, not only in a straight line but also around a road circuit. Conceived in 1968 by the Sports Car Club of America as a less-costly counterpart to Formula One, the new Formula A offered almost equal performance. From 1969 matching rules and specifications were adopted in the UK by the British Racing & Sports Car Club and Motor Circuit Developments Ltd – which managed most of Britain's major circuits. They re-named the class Formula 5000 and it proved extremely popular in the US, the UK, Europe, and quickly spread to Canada, South Africa, Australia, and New Zealand, with numerous manufacturers entering the fray.

The British McLaren company developed its original FA/5000 M10A in 1969, basing it upon its very successful M7A Formula 1 works car design with an extended monocoque chassis and highly sophisticated suspension and aerodynamic suit. Having a 97.5-inch wheelbase, it was both larger in most dimensions and somewhat heavier than the Ford DFV V8-powered M7-series. The chassis was panelled in light-alloy sheet, bonded and riveted to fabricated steel bulkheads. Additional rear pontoons supported the engine and gearbox, in contrast to the F1 M7 design in which the DFV engine doubled as the load-bearing rear chassis structure. The FA/5000 car's front suspension utilized wishbones and coil-over shocks, while the rear comprised lower wishbones, top links, twin radius rods and coil-overs. Brakes were 12-inch diameter Lockheed discs. Power was provided by the widely-available cast-iron small-block Chevrolet V8, in this case supplied by Traco (Travers and Coons) in the US, with quadruple Weber carburetors and producing between 450 and 500bhp. This reliable - and economically-priced - unit was bolted to a Hewland LG600 five-speed manual-change transaxle. The McLaren M10A was an immediate success on both sides of the Atlantic, winning the 1969 SCCA national title in Formula A and dominating the first season of F5000 racing in Europe. The McLaren M10B as offered here was a further developed and updated replacement for the original 'A-series' cars and it achieved similar success upon a global basis. In effect, if you had ambitions to go Formula A/5000 racing in 1970-71, then a McLaren such as this was the stand-out car to campaign...


THE MOTORCAR OFFERED

Chassis 400-13 is a mid-production M10B, amongst some two-dozen of the improved machines produced to the McLaren team design for customer sale by their partner-company Trojan Limited's Racing Car Division. This car offered here was originally delivered to American Steve Durst, who drove it in the professional Formula A Continental series and then in SCCA's Formula A national races. As recorded by British authority Allen Brown's outstanding 'oldracingcars.com' car-history website:

"Steve Durst (Elkins Park, PA): SCCA Nationals (won at Portland 3 May); US 1970 (#36 blue; debut at Round 2 Edmonton 24 May: 5 races). Durst crashed at Round 8 St Jovite on 1 Aug and missed the last five races of the season... in August 1974, an M10B was advertised by Toyota dealer and former SCCA racer John H. (Jack) Thompson (Doylestown, PA) that was said to be 'completely rebuilt' and '5 races from new'. That can only really mean the Steve Durst car, all the other M10Bs having raced many more times by 1974. Doylestown is only 25 miles from Steve Durst's base at Elkins Park.

"The car is next seen in 1987 when Chuck Haines sold it to Mike Allison (Falls Village CT), then GM for Skip Barber Racing. Haines was in St Louis, MO by the mid-1980s but had lived in Bethel Park, PA, on the outskirts of Pittsburg, in the mid-1970s. The car was fully restored by Charlie Gibson of Sasco Motorsports (Stratford, CT) and raced by Allison until sold to Mike Yanchek in 1988/89. Yancheck lodged the car in the Novi Racing Museum in Michigan for some time. Following Yancheck's death in the mid 1990s, the car was stored until it was one of three cars sold by his widow to (the current vendor)..."


This extremely handsome single-seat McLaren-Chevrolet - obviously a potential Vintage race winner in capable hands - was purchased by the Lakewood Collection nine years ago, and a full restoration was planned. However, that did not take place and the car remains as purchased. The chassis and bodywork are described by the consignor as being in good condition, but the engine has not been run in 15 years. This most attractive Formula A/5000 front runner is offered here with two spare front wing sets and a folio of period documents.

Footnotes

  • Offered on a Bill of Sale.

Saleroom notices

  • This example is configured as an M10A with the LG gearbox and bell housing - it could of course be reconfigured to B-spec with the use of a DG gearbox and bell housing.
Contacts
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
The ex-Steve Durst, Chuck Haynes, Mike Allison, Mike Yancheck,1970 MCLAREN-CHEVROLET M10B FORMULA A/5000 SINGLE-SEAT RACING CAR  Chassis no. 400-13
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