with rare exceptions; some 1968 and later Olds 400/455s were produced with forged steel crankshafts. These rare cranks can be readily spotted by the "J" shaped notch in the OD of the rear flange; cast iron cranks have a "C" shaped notch. All 1965-1969 Olds 400s were painted bronze. 4-4-2 Rocket The 1966-1967 4-4-2 V8 was a short stroke engine which featured B and C cast large-valve cylinder heads and hydraulic lifters of larger diameter, as well as push-rods of different length and diameter than the standard Olds Rocket V8. It was rated at and of torque with a Rochester 4-barrel, and with the L69 tri 2-barrel option in 1966. A nominal 360 hp was claimed in 1967 when equipped with a W30 camshaft, 4-barrel, and outside air induction, 502 of which were factory produced. They were all painted Bronze and had V and G stamped on the cylinder heads. 425 The big-block was the first tall-deck "big block," produced from 1965 through 1967. It is arguably the best engine Olds made in the muscle car era, although it never made it into a "muscle car". It used a bore and stroke. Most 425s were painted red, though the 1966 and 1967 Toronado units were light blue. All 425 engines were fitted with forged steel crankshafts with harmonic balancers. Super Rocket The standard 1965-1967 was called the Super Rocket, and was the most powerful engine option for the Oldsmobile 88 and 98 of 1965-1967. Compression ratios of 9.0:1 at or 10.25:1 at were available in the U.S. Starfire A special 1965-1967 V8 was the Starfire engine. The main distinguishing features of this engine were a slightly different camshaft profile from the standard ultra high compression engine and factory dual exhaust. This engine was only available in the Oldsmobile Starfire and a performance economy model called the Jetstar I. It shared the same compression ratio of the Toronado Rocket at 10.5:1. It also used the .921 in lifter bore size of the Toronado Rocket. Toronado Rocket An Ultra High Compression Toronado Rocket version of the V8 was made for the 1966 Toronado. It had the same -diameter lifters of the first-generation Oldsmobile engines, rather than the standard , which let engineers increase the camshaft's ramp speed for more power, , without sacrificing idle or reliability. Unlike all other 425s, this version was painted slate blue metallic. 455 The 425's stroke was