Econo-Kool Freshwater Cooling Kit, Full System Big Block Chevy to 500 CID

Econo-Kool is the most economical Heat Exchanger Kit on the market today. Econo-Kool kits are specially designed for the "do it yourself" installer.

Block & Manifold cooling for Chevy engines, inboard, V-Drive and stern drive.Especially designed to take advantage of low capacity raw water pumps used on stern drive engines. Big block engines use a heat exchanger that has a 5-inch diameter and is 25 inches long, four pass.  Installer must supply hose and blank gaskets.  In some installations manifold fittings (pipe thread to hose) may be required

• This is a full cooling system . It must be placed below water pump to get the air out, I tried to mount it on top of water pump and had trouble getting all the air to bleed out . Then found out it has to go below and I don't have room to put it along side or in front or engine, I was using it on a 496 cu, I tried it for month and it worked ok for most of the time but because it was above pump air gets trapped in it. When I bought it no one told me this. Paid $1200.