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

Cam and Heads Add Over 100 hp to Small-Block - Mini Mouse, Part 2

Well,Super Chevyfans, we're back with another installment of Mini Mouse. The smallest of the LS family, the 4.8L LR4 Mini Mouse was aptly named. But just because it is displacement-challenged, don't ...
Motor Trend

Cathedral v.s. Rectangular Port Cylinders - Head To Head

The question of the day seems to involve the difference between the original cathedral-port and modern rectangular-port LS heads. More specifically, which one is better? Were we to compare two sets of ...
Hot Rod

LS Cylinder Heads: Shootout and Cam Test

More than 20 years after the first Gen III LS1 V8 rolled off the assembly line for the 1997 Corvette, it seems there are LS cylinder heads everywhere, and even more stories that have tested and ...
Motor Trend

What is the hot setup for a turbo LS, rectangular port or cathedral port heads?

Just in case you aren’t up on current events in the LS community, there seems to be a divide wedged firmly between cathedral port and rectangular port enthusiasts. For those unfamiliar with the terms, ...