• Install in side of Block to pull water out & return it back to Radiator
• Precision Machined Plugs knock right into where the Freeze Plugs are on Engine Block
• Drill & knock in Retainer Pins so they won’t
ever move
• Makes your Motor run much cooler -- called Reverse Cooling
• 6061 Aluminum Construction
• Anodized Black
• Kit Of (4)