Small Block Chevy C4 Corvette 5.7L LT5 Aluminum Heat Sink Flange

These header welding aluminum heat sink flanges are specifically made for stock LT5 small block Chevy heads commonly found with C4 Corvettes.

 **Sold Individually**

Another unique header welding tool from SHM- our new Heat Sink Welding Flanges. Made from 1/2" thick 6061 aluminum, and drilled & tapped to your bolt pattern. These heat sink welding flanges are a perfect replacement for your header flange welding. Incorporating an open port to add a back-purge line while keeping costs down. These are a great alternative to a spare cylinder head, or drilling holes in your bench top. The great heat-sink capacity of aluminum also means your flanges will warp less, and not require any bulky clamps to get in the way of your welding process.

Each heat-sink flange can include anodizing for improved durability (add 2 week lead time) or header bolts.