Editing Repco (section)

== Four world titles for the single-camshaft 16-valve ==

In 1966, the Repco engine was good enough to score three poles for Jack Brabham. In his one-off [[BT19]], it helped him get four consecutive wins and both titles in the nine-race-long season, a unique accomplishment for a driver and constructor. This was his third title.

The 2,995.58 cc V8 Repco had a bore and stroke of 3.50 × 2.375" (88.9 × 60.3&nbsp;mm). Initially it gave about {{cvt|285|bhp|kW PS|0}}. A test-bed figure of {{cvt|315|bhp|kW PS|0}} at 7,800 rpm with {{cvt|230|lbft}} torque at 6,500 rpm was obtained. In race trim, about {{cvt|299|bhp|kW PS|0}} was available. In 1967, the bore and stroke remained unaltered. In that year, {{cvt|330|bhp|kW PS|0}} bhp at 8,500 rpm was often quoted. A test-bed figure of {{cvt|327|bhp|kW PS|0}} at 8,300 rpm was recorded. For 1968, a 32-valve version with {{cvt|400|bhp|kW PS|0}} at 9,500 rpm was planned. Only about {{cvt|380|bhp|kW PS|0}} at 9,000 rpm was achieved.

In 1967 the competition had made progress. Repco produced a new version of the engine, the 700 series, this time with a Repco designed block. Brabham scored two poles early in the year, but then the new [[Ford Cosworth DFV]] V8 appeared in the [[Lotus 49]], setting a new pace with its {{cvt|410|hp|kW|-1}} at 9,000 rpm, with Jim Clark and Graham Hill taking all poles in the rest of the season. As the Lotus was still fragile, the Brabham drivers scored two wins each. Brabham used new parts on his cars, which was not always helpful, so Denis Hulme collected more results and the title, followed by Brabham himself, who again won the constructors' title.