In the February '95 issue of HOT ROD we ran a test on the TFS Twisted Wedge small-block Chevy heads ("A New Twist On The Old Heads"). But we were unable to complete the test because the engine blew up ...

How to pick the right size bolt or nut every time for DIY projects Using a bolt, nut and screw gauge takes the guesswork out of your project, helping you quickly identify the exact size you need.

For decades, engine-builders have been tightening rod bolts with a torque wrench and getting away with it. But in today's high-performance world where we push engines to make a ton more power and spin ...