In the 1980s General Motors shifted away from small holes in the cylinder head and pushrod guide plates instead to what they refer to as “guided” rocker arms. These stamped rocker arms use two small ...

Justin Pritchard is a seasoned Sudbury, Ontario-based automotive journalist, producer, and technical writer. With a passion for cars and a talent for storytelling, he's established himself as a ...

Chevrolet’s 302 Small Block engine is a legendary powerplant that has left a lasting impact on the automotive industry. Initially designed for the high-performance muscle cars of the late 1960s, the ...

Chevrolet's Vortec series of engines is hugely popular. Designed with trucks in mind, Vortec engines prioritize low-end torque and durability over high compression ratios and high horsepower, unlike ...