Moroso 35570 - Eng. Block Filler, Case

Engine Block Filler 4 1-Gallon Containers • Just fill with water, mix and pour into block before machining • Helps prevent thin cylinder walls from cracking and improves ring seal by keeping cylinders round • Also dampens unwanted vibrations • Has expansion rate very similar to cast-iron • Highly regarded by "Mountain Motor" authority Scott Shafiroff • Easy to follow, detailed instructions