We offer an extensive selection of timing chains in nearly every type available, with a level of quality to match every budget. All chains will fit any big block of any displacement or any year, the only criteria of selection is whether you are going to run a camshaft that attaches to the chain with 1 or 3 bolts. Usually smaller street type hydraulic cams will use one bolt while most larger performance solid, roller and racing cams will use three bolts. The factory used three bolts for heavy duty applications such as hemi's and heavy duty truck/industrial.