Chevy's Late-90s Vortec Heads Are A Small Block Secret Weapon

Chevy's small-block Vortec heads can be an engine builder's secret weapon, thanks to the improved flow and potential for ...
Hot Rod

360 X Cylinder Heads - Review: RHS's New Heads For The Small-Block

Whether building an engine from scratch or modifying the engine already in your car, there's no doubt that choosing the right cylinder heads for your combination can greatly affect the horsepower and ...
The Autopian on MSN

The most complicated new engine has three cylinders, a rotating block, a stationary head, and is shaped like a circle

Meet the Birotary, a crazy new and complicated engine that has three cylinders arranged like a star, a rotating block, a ...
Hot Rod

History of the LS Engine and Cylinder Head Casting Number Spotter’s Guide: LS1, LS6, LS2, LS3, LS4, L99, LS7, LSA, LS9, LQ9, LQ4, L92, L94

Back in the early 1990s the Gen II LT1 and LT4 engines powered GM's hottest performance cars, but GM read the tea leaves and knew that this platform would not be able to get them where they would ...