When a bolt or screw breaks off it leaves the hot rodder feeling befuddled and without hope. But take heart—Summit Racing Equipment, Harbor Freight, and Dave Akard of Burbank Speed are here to help ...

Engines endure much abuse. Sometimes this torture results in damage to either the block or the heads--or both. The block can be very rare, such as a matching-number block for an LS6 Chevelle or the ...

Spark plugs that haven't been changed for a long time can become one with the cylinder head. Fortunately, it's possible to repair damaged threads instead of scrapping the head. (Photograph by Chris ...