It's obvious that hot rod parts have evolved tremendously over the past 70 years or so. One of the best examples is the small-block Chevy cylinder head. A scant 30 years ago, the iron "fuelie" casting ...

History has repeatedly proven that the most popular designs aren't always the best. While the big-blocks offered by Chrysler's crosstown rivals may have been manufactured in larger numbers, from an ...

Horse Sense: For about a year after Trick Flow stopped offering the original Street Heat cylinder heads, they were still available from Wil-Burt, the company that cast the heads for Trick Flow before ...

When we first got a look at our sample pair of Trick Flow Twisted Wedge CNC heads-the first ones let out of the factory-we were impressed. Compared side-by-side in our photographs, you can see the ...