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This is not yet a common swap, but this V6 is a narrow and light high-performance option. This is a narrow 60-degree all-aluminum DOHC V6 that is well-regarded. The most common displacement is 3.5L. General Motors LFX V6 engine: This is not yet a common swap, but this V6 is a narrow and light high-performance option.
The G-engine gave better performance than its competitors at its 1960 introduction, and generally kept up through the 1960s and early-1970s, though engines like the Pontiac OHC Six, a brief GM outlier, bested the performance of most versions of the Slant-6. After an early factory racing program was discontinued by 1962, the Slant Six did not ...
Chrysler built three Spitfire engines: the 331 Poly, 354 Poly, and the all-new 301 Poly, which did not have a Hemi version. They were introduced for 1955 in the low-priced Chrysler Saratoga and Windsor models and were used through 1958. All Chrysler Spitfire engines were low deck; no Poly version of the raised deck 392 Hemi engine was produced.
Chrysler developed its first experimental hemi engine for the Republic P-47 Thunderbolt fighter aircraft. The XIV-2220 was an inverted V16 rated at 2,500 hp (1,860 kW). The P-47 was already in production with a Pratt & Whitney radial engine when the XIV-2220 flew successfully in trials in 1945 as a possible upgrade, but the war was winding down and it did not go into production.
The Hemi-6 is a pushrod O.H.V. (overhead valve engine), with combustion chambers comprising about 35% of the top of the globe. This creates what is known as a low hemispherical shaped chamber. In this way, the "Hemi" moniker was used for the same kind of marketing cachet as Chrysler's 1950s-1970s Hemi V8 engines.
A hemispherical head ("hemi-head") gives an efficient combustion chamber with minimal heat loss to the head, and allows for two large valves.However, a hemi-head usually allows no more than two valves per cylinder due to the difficulty in arranging the valve gear for four valves at diverging angles, and these large valves are necessarily heavier than those in a multi-valve engine of similar ...
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