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The Pontiac Ventura is an automobile model which was produced by Pontiac between 1960 and 1977. The Ventura started out as a higher content trim package on the Pontiac Catalina , and served as the inspiration for the luxury content Pontiac Grand Prix in 1962, then remained as a trim package on the Catalina until 1970.
389 cu in (6.4 L) dual quad engine in a 1960 Pontiac Ventura. For 1959 the V8's stroke was increased to 3 + 3 ⁄ 4 in (95.3 mm), raising displacement to 389 cu in (6.4 L). This was the beginning of factory supplied performance items such as 4 bolt main bearings and windage trays to reduce friction from crankcase oil.
The Pontiac straight-6 engine is a family of inline-six cylinder automobile engines produced by the Pontiac Division of General Motors Corporation in numerous versions beginning in 1926. "Split Head" Six
Catalina sedans and coupes now came standard with a smaller 255-horsepower 350 cubic-inch Pontiac V8 as standard equipment with optional engines including the previously standard 400 two-barrel rated at 265 and 290 horsepower (still standard on convertibles and Safari wagons), a 330-horsepower 400 four-barrel and a two versions of the new 455 ...
During the 1975-76 model years, the top engine choice was a 350 cu. in. (5.7 Liter) V8 from GM's Buick division. During that time, the base engine was the 115 hp (86 kW) 250 cu. in. (4.1 Liter) inline-6 from Chevrolet, until 1977 when it was dropped in favor of the lighter 110 hp (82 kW) Buick 231 V6. It saw few changes through its life being ...
At the height of the horsepower era, Pontiac engines reached ratings of 390 hp (291 kW; 395 PS) (SAE gross), though other engines achieved considerably higher outputs. Federal emissions laws eventually brought the horsepower era to a close and resulted in a steady decline for Pontiac's engines. One holdout to this industry-wide slide was the ...
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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.