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It is Chevrolet's last production first-generation small-block. The cylinder heads feature combustion chambers and intake ports very similar to those of the LT1 V8, but lacking the LT1's reverse-flow cooling and higher compression. As such, the L31 head is compatible with all older small-blocks, and is a very popular upgrade.
In 1966–1967, the 1-barrel was replaced with a 2-barrel Rochester 2GV, giving the engine a 5-horsepower boost to 160 hp (119 kW). The V6 was dropped after the 1967 model year in favor of a conventional 250 cu in (4.1 L) inline-six engine built by the Chevrolet division, and the tooling was sold to Kaiser-Jeep .
It was offered with a single one barrel carburetor, rated at 165 hp (123 kW). [5] A W53 Sprint version for the Firebird produced up to 215 hp (160 kW). Considered advanced by Detroit engineering standards at the time, the Pontiac OHC 6 followed the Jeep Tornado I6 as the second post-World War II domestic-developed and mass-produced overhead cam ...
That the Essex V6 is a Ford small block V8 engine with two cylinders removed That the Essex V6 is a copy of the Buick V6 engine . The first claim relies on similarities like the 90° angle between cylinder banks, an OHV valvetrain, and the fact that deducting two cylinders' volume from a 5.0 L V8 results in a V6 displacing in the range of 3.70 ...
It has a 10.3:1 compression ratio. Its fuel economy is 4–6 km/L (11–17 mpg ‑imp; 9.4–14.1 mpg ‑US) in city, and 7–9 km/L (20–25 mpg ‑imp; 16–21 mpg ‑US) on highway. [citation needed]. Holden also produced the 3.2L engines that were used by Alfa Romeo as the basis of its JTS V6 engine. Applications:
The High Value engine family from General Motors is a group of cam-in-block or overhead valve V6 engines.These engines feature cast iron blocks and aluminum heads, and use the same 60° vee bank as the 60° V6 family they are based on, but the new 99 mm (3.90 in) bore required offsetting the bores by 1.5 mm (0.059 in) away from the engine center line.
These engines vary in displacement between 2.8 and 3.4 litres (2,837 and 3,350 cc) and have a cast-iron block and either cast-iron or aluminum heads. Production of these engines began in 1980 and ended in 2005 in the U.S., with production continued in China until 2010. This engine family was the basis for the GM High Value engine family.
Power outputs for the new engines, designated Alloy Head II, increased to 90 kW (120 hp) and 105 kW (141 hp) respectively, [26] [27] and fuel economy improved over that of the previous Alloy Head engines with single-barrel carburettor. In March 1983, direct-port fuel injection using Bosch Jetronic LE was offered as an option on the 4.1 L engine ...
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