- Includes precision cnc-machined billet aluminium adaptors with 1/8-inch npt ports.
- Features high-pressure braided stainless steel coolant hoses for long-term reliability.
- Adaptor configuration includes one 1/8-inch npt port on the left and two on the right.
- Effectively bleeds trapped air and steam pockets from cylinder head water jackets.
- Universal orientation allows installation on either the front or rear of the cylinder heads.
Designed for GM LS1 engines in Holden and custom vehicle applications, this complete steam port crossover kit routes trapped air and steam away from the cylinder heads to prevent hot spots and engine detonation. The kit includes precision CNC-machined billet aluminium corner adaptors (left side with one 1/8-inch NPT port, right side with two 1/8-inch NPT ports), stainless steel braided crossover hoses, and all necessary pipe fittings.