Valvetrain technology has mirrored the advancements in cylinder heads to help them function better, and rocker arms are a big part of this. Rocker arm offset is very important and it ensures the valvetrain will work as it should
The fundamental shaft rocker uses a solid shaft, two mounting points, and a solid rocker arm without the need of a stud mounted through the centre; racers can experience benefits in strength and longevity at horsepower levels just 10- to 20-percent above stock.
Flex in the valvetrain means less valve lift and less airflow into the cylinder. Could a floppy valvetrain be holding your engine back? This simple test allows you to evaluate your valvetrain with simple tools to gauge its stiffness.
So, you have a set of pistons that you want to re-ring, but you don't know which rings to order. Here, we go over the options you have for measuring your old rings or ring grooves so JE can get you the rings you need.
While many Dart cylinder heads come assembled with valve springs, sometimes it can be necessary to spec your own set that pair with your camshaft of choice. Here’s how to correctly set up a cylinder head.