Thunder Power's 4-valve cylinder head conversion for big-block Chevys bolts right onto production iron or aftermarket aluminum cylinder blocks. The heads even have the necessary bosses to add an extra ...

The big-block Chevy first saw the light of day back in the '60s when it first appeared as a NASCAR powerplant known as the "Mystery Engine." Here we are some 45 years down the road, and getting real ...

While on paper our Boulevard Bruiser ("Ground & Pound," October '09) seemed well at home in the upper rpm. A closer look revealed a less-than satisfactory issue with valve float and subsequently a ...

"There's no replacement for displacement!" This has been the battle cry of big block fans everywhere, and for good reason. A Chevy big block brings the thunder, whether you're roasting tires with a ...