Experience the power of Hard Blok's specially formulated Water Jacket Filler. Made with refined iron particles, this cement-based filler strengthens race engines, enhances vibration dampening, and dissipates heat. Designed for cast iron blocks but also effective for aluminum blocks, Hard Block provides ultimate engine protection in the toughest racing conditions. Order your parts online today from JJ Motorsports for fast shipping and unbeatable prices.
Some parts are not legal for use in California or other states with similar laws / regulations
