We did work on our Gen III Hemi engine, ... The supporting valvetrain components include .110-inch wall Trend pushrods and Harland Sharp adjustable rockers.

Gen III Hemi Valvetrain And Head Upgrades. HOT ROD Staff Writer Oct 01, 2008. See All 22 Photos. Chrysler invested millions of dollars and spent thousands of dyno hours designing and validating ...

Hemi engines aren't perfect. Sorry. Half-grapefruit-shaped combustion chambers sure do let designers increase valve sizes, and in the larger displacement Hemis, these valves could probably pass golf ...

Mopar Aluminum Engine Blocks: Available in three versions for the HEMI Gen III engine, these blocks are 100 pounds lighter than the cast-iron block. PN: P5155507, P5153897, P5153898; MSRP: $4,485.

While the Gen 2 Chrysler HEMI engine was only produced with 426 cubic inches (7.0 liters) of displacement, the newer Gen 3 HEMI V8 evolved from the initial 5.7-liter (345-cubic-inch) to include ...

Sure, the history of the hemispherical-head engine hadn't started with Chrysler, while the the company's Gen I HEMI, which had been offered in the 1950s, was eventually replaced by the wedged-head V8.

Regardless, the Gen III Hemi died, too, with the "Last Call" Hemis ending ... thanks to their relatively complex valvetrain. In 1969, a Hemi cost buyers an extra $700 vs. $119 for the also ...