From 1968 to 1970, Brabham returned to Indianapolis, at first with a 4.2-litre version of the Repco V8 the team used in Formula One—with which Peter Revson finished fifth in 1969—before reverting to the Offenhauser engine for 1970.
De 1968 a 1970, Brabham regresou a Indianápolis, ao principio cunha versión de 4.2 litros do V8 Repco utilizado na Fórmula Un, co que Peter Revson terminou quinto en 1969, antes de volver ao motor Offenhauser para 1970.