Ads
related to: hot heads early hemi parts for sale
Search results
Results From The WOW.Com Content Network
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 ...
The Polyspheric or Poly engines were V8 engines produced by Chrysler from 1955 to 1958 as lower-cost alternatives to the Hemi engines. [1] These engines were based on the Hemi engines, using the same blocks and crankshaft parts, but completely different cylinder heads, pushrods, exhaust manifolds and pistons.
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 Chrysler B and RB engines are a series of big-block V8 gasoline engines introduced in 1958 to replace the Chrysler FirePower (first generation Hemi) engines. The B and RB engines are often referred to as "wedge" engines because they use wedge-shaped combustion chambers; this differentiates them from Chrysler's 426 Hemi big block engines that are typically referred to as "Hemi" or "426 Hemi ...
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 ...
The early Repco engines produced up to 300 bhp (220 kW), and featured new SOHC cylinder heads and iron cylinder liners. The 1967 and later versions of the Repco engine had proprietary engine blocks. In the mid-1980s, hot rodders discovered the 215 could be stretched to as much as 305 cu in (5 L), using the Buick 300 crankshaft, new cylinder ...
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.
Forged connecting rods used the Wedge's 3 ⁄ 8 in (9.5 mm) hardware, as opposed to the Hemi's 7 ⁄ 16 in (11.1 mm), but would nonetheless have been considered high-performance parts. [ 1 ] The intake was to be a single Carter ThermoQuad , of greater flow than any previously used, on a dual-plane intake manifold, [ 5 ] while dual four-barrels ...