Hard Blok 860212 Hard Blok Engine Block Filler Valve Springs with recalibrated fuel and ignition

with recalibrated fuel and ignition maps throughout the RPM range

the stock stator support is a failure point—ATI's billet steel replacement eliminates that weak link entirely

Each coupler is precision-cut to the correct length with heavy-duty clamps included for a positive seal on bead-locked or smooth tubing

The lightweight construction typically weighs under 1

Hard Blok 860212 Hard Blok Engine Block Filler Valve Springs with recalibrated fuel and ignitionThe Hard Blok 860212 Hard Blok Engine Block Filler is a block filler designed for automotive performance applications where component quality directly affects vehicle reliability. This Block Fillers is manufactured to meet the demands of street and competition use with attention to the specific requirements of the intended application. Part 28322 is configured for its specific application with attention to fitment requirements. This block filler