Hard Blok Engine Block Filler - Short Fill - (2) 6-1/4 lb. Bags Battery Charger 25 x 6 x 4

25 x 6 x 4

1987-1996 Ford F-350

Know the course

The flange is sealed at the manifold with an O-ring

Hard Blok Engine Block Filler - Short Fill - (2) 6-1/4 lb. Bags Battery Charger 25 x 6 x 4Hard 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