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The Quadrajet is a four barrel carburetor with a "spread bore" throttle plate, made by the Rochester Products Division of General Motors. Its first application was the new-for-1965 Chevy 396ci engine .
The first iteration of the 305, the LG3 was introduced in 1976. This variant used a Rochester 2GC carburetor from 1976 to 1978. In 1979, the more fuel-efficient Rochester Dual-Jet two-barrel carburetor replaced the older 2GC. This change also resulted in a drop in power to 130 hp (97 kW) and 125 hp (93 kW) for California emissions cars.
The Chevrolet 90° V6 family of V6 engines began in 1978 with the Chevrolet 200 cu in (3.3 L) as the base engine for the all new 1978 Chevrolet Malibu.The original engine family was phased out in early 2014, with its final use as the 4.3 L (262 cu in) V6 engine used in Chevrolet and GMC trucks and vans.
In 1953 an advertisement in Life stated: "Rochester builds original equipment carburetors for Chevrolet starting with 1950, Oldsmobile from 1949 and Cadillac from 1951. Also, Rochester supplies replacement carburetors for Chevrolets from 1932." [7] Rochester also supplied Pontiac, while using the Power Jet name in the replacement market. [8]
It was rated at 350 hp (261 kW) and 440 lb⋅ft (597 N⋅m) of torque with a Rochester 4-barrel, and 360 hp (268 kW) 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.
The Jets couldn’t back up their offensive explosion in Week 15 and instead scored only 9 points against the Los Angeles Rams. The team seems to be coming apart at the seams, especially with star ...
The first was the 429 Thunder Jet, the standard engine for the Cobra, rated at 360 hp (270 kW). Next was the 429 CJ (Cobra Jet), rated at 370 hp (276 kW), which included a 2-bolt main block, hydraulic lifters, a 700 CFM Holley or 715 CFM Rochester Quadrajet carburetor, and was available with or without Ram Air. The top option was the 429 SCJ ...
The LA engine was available until 1991, when it was superseded by the Magnum version. It used hydraulic lifters and a two-barrel carburetor for most of its production, though four-barrel Carter Thermo-Quad and Rochester Quadrajet carburetors were used in police applications starting in 1978 and 1985, respectively. The 318 two-barrel ELD ...