This BBC Oil Input Adapter and Bypass Eliminator, Mark IV, provide two 1/2" N.P.T. oil input ports, one before filtration (for an external oil pump) and one after filtration (for an Accusump). It mounts between the oil filter and block and bolts into the mounting holes left after the bypass is removed. Removing the stock bypass allows the engine to receive filtered oil all the time. The filter is lowered only 1-1/2". Comes with hardware and O-Rings.

Adapter Features
* 1/2" NPT Inlet Port
* 1/2" NPT Outlet Port
* Bolts Into Stock Bypass Mounting Holes
* Machined Billet Aluminum
* Hardware Included

Recommended Accessories
98-002 - Replacement O-Ring Kit 
23-245 - 1/2" NPT to -10 AN Steel Fitting 
23-246 - 1/2" NPT to -12 AN Steel Fitting 
23-243A - 1/2" NPT to -6 AN Aluminum Fitting 
23-244A - 1/2" NPT to -8 AN Aluminum Fitting
23-245A - 1/2" NPT to -10 AN Aluminum Fitting 
23-246A - 1/2" NPT to -12 AN Aluminum Fitting
23-345A - 90 degree 1/2" NPT to -10 AN

Product Tech
Chevy Oil Input Adapter Installation Guide (PDF)

Engine Filter Thread Guide (PDF)