Hard Blok Engine Block Filler - Tall Fill - (2) 14 lb. Bags J88603 8 Function

8 Function

Tested with factory dampers (including magnetic ride)

Each header is manufactured with 1-3/4 CNC mandrel bent tubing that offers unrestricted exhaust flow for increased horsepower and torque over factory OEM manifolds

The new Blue Gaskets are a lifesaver

1957-1967 Mercury Voyager

Hard Blok Engine Block Filler - Tall Fill - (2) 14 lb. Bags J88603 8 FunctionHard Blok Water Jacket Filler Is a Specially Formulated, Cement Based Product With Refined, Size Graded Iron Particles Combined At An Optimum Ratio To Provide Maximum Strength, Vibration Dampening, and Heat Dissipation Required In High Performance Race Engines. Its Coefficient Of Thermal Expansion Is Identical To Cast Iron Engine Blocks. Product Has Been Tested and Proven Effective In Aluminum Blocks. Remains Stable At All Operating Temperatures. Does