Aeroflow Rubber Hose Block-Off Plug - 1/4"(6.35mm) AF64-5206BLK Weld On Radiator Necks & Fittings Replacement O-ring and bolts -

Replacement O-ring and bolts - AF59-2033

Additional Specifications: Internal Diameter (measuredend of hex finisher) - 17

These wings allow extra oil capacity without affecting ground clearance which helps maintain more constant oil temperatures for reliability and feature windage trays and crank scrapers

The offset diference is 4mm from Ford Windsor 302/351 (16mm) to Ford Cleveland 351 (20mm)

Aeroflow Rubber Hose Block-Off Plug - 1/4"(6.35mm) AF64-5206BLK Weld On Radiator Necks & Fittings Replacement O-ring and bolts -Rubber Hose Block Off Plug 1 4"(6. 35mm) Black Finish Brand: AEROFLOW Part Number: AF64 5206BLK Description: These block off plugs made by Aeroflow Performance are designed to block off rubber hoses when they are not needed. This makes it great toblock off unused rubber heaterhoses, fuel line, PVC lines etc. We recommend to always use a clamp when using this block off cap. These block offplugs are available in the popular sizes from 6mm up to 38mm and