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The "Street Hemi" was similar to the race Hemi but with dual inline four-barrel Carter AFB carburetors [clarification needed] (with automatic choke), lower compression (10.25:1 from 12.5:1) and lower-lift camshaft, with iron exhaust manifolds instead of lighter steel long tube headers. [citation needed] The "Street Hemi" version was rated at ...
The police version of the Dodge Charger was made available with a choice of a 3.6-liter Pentastar V6 (292 hp) or 5.7-liter HEMI V8 (370 hp) engine, larger 14.5-inch front brake discs, increased front-caliper swept area from 289 sq.in to 388 sq.in., increased rear-caliper swept area from 291 sq.in. to 296 sq.in., Police-specific Secure Park ...
Performance modifications included a "hot" camshaft (in reality, just a camshaft used in various applications during the '70s with .440"/.440" lift and 196°/208° duration at .050"), stiffer valve springs, a larger vibration damper (same as all '73-'79 350s, 403s, and 455s), a Y-pipe dual-outlet exhaust system, and richer secondary metering ...
The base engine was a 318 cu in (5.2 L) V8 with a three-speed manual transmission, while automatic and floor-mounted manual transmissions were optional. Larger and more powerful engines were available up to the 426 cu in (7.0 L) Hemi V8. Positioned as a sports-type luxury model, sales of the 1966 and 1967 Chargers were low.
1963 Jeep Tornado engine. The Jeep Tornado engine was the first post-World War II U.S.-designed mass-produced overhead cam (OHC) automobile engine. [1] The 230.5 cu in (3.78 L) hemi-headed straight-six was introduced in mid-year 1962, and replaced the flathead "6-226" Willys Super Hurricane that was in use since 1954.
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 ...