EARLY HEMI OIL FILTER BYPASS BLOCK OFF.

The purpose of the Bypass Block Off is to eliminate the stock oil filter bypass valve and force all of the oil through the filter. The original design allowed unfiltered oil to bypass the stock cartridge filter if it became restricted or plugged. Modern spin on filters with built in bypass eliminate the need for the stock bypass valve. We recommend that the stock filter by replaced with a spin modern spin on filter. The Wilcap FA1 or FA3 (Remote) allows the use of such a filter. The easiest time to install the bypass block off is during a rebuild before the crankshaft is installed however it can be done with the crankshaft in place.