Blocksaver is a copperized powder that's simply poured into the cooling system to effectively and permanently repair porous, cracked blocks, heads and water jackets. Works on either aluminum or cast iron.

Blocksaver should not be confused with ordinary stop-leak solutions that must be kept wet to make them effective. Blocksaver is a specially formulated and concentrated powder (no bulk filler or water) that fills pores and cracks by chemical action. It fuses with metal---DRIES HARD ON CONTACT AND STAYS HARD---PERMANENTLY!!!

Blocksaver becomes part of the metal it repairs---it contracts and expands exactly as the metal. Thats why Blocksaver is never affected by draining, vibration, anti-freeze solutions and flushing compounds. Blocksaver will not fall away or flake. Its double action cleans the cooling system as it permanently repairs.

Positive results in 2 hours. Successfully used on Cars, Trucks, Buses, Tractors, and Diesel engines.

Heavy Duty Formula!!! Saves Time Saves Money!!!

CAN BE USED WITH ANTI-FREEZE!!!!!!!

This product has a prover track record and is simply to use.

"We have been using Blocksaver at our Automotive repair shop for many years and we offer it to customers when they can't afford the repair or when a mechanical repair would cost more than the car is worth. We have used other products over the years but now only use Blocksaver because of the positive results, its easy use and best of all it mixes with Anti-Freeze. We are now offering Blocksaver to the general public."