Engine Performance

ADA Racing V2 Billet Cylinder Head for the Kawasaki 800 SXR engine. All ADA Racing billet heads are made from 6061-T6 aluminum and CNC machined at ADA for consistency and performance. The head shell is then anodized for durability protection against salt-water corrosion. This is the head shell only and includes o-rings that fit into the grooves in the head shell and brass fittings. This is the version 2 head that requires grinding the cylinder for girdle stud clearance. V2 Girdle kit and domes are NOT included.

ADA Racing Cylinder Head Girdle Kit for Yamaha 701/760 and Yamaha 1100/1200 Girdled Cylinder heads. Includes 6 stainless studs, 6 stainless washers, and 6 chrome acorn nuts. The only true girdle system. It does not bolt the cylinder to the cases, but sandwiches the cylinder between the head and the cases. Therefore, there is no pressure on the base of the cylinder. The threads are rolled for strength and not cut. Thread rolling compresses the material adding strength to the threads. Cutting threads leaves the root of the thread sharp, weakening the thread and making them easier to break.

Part Number: YA701G6

ADA Cylinder Head Dome for ADA Racing Kawasaki 550SX billet head. Includes compression (OR041) and dome top (OR020) o-rings.Domes are sold individually.

ADA Racing Billet Cylinder Head Dome for Kawasaki 650. Includes compression (OR042) and dome top (OR020) o-rings. Squish relief is .015 inch @ 78mm with a 9.5 degree angle. These domes fit the ADA Racing 650 Cylinder Head. Domes are sold individually.

ADA Racing Billet aluminum front oil injection cover for Kawasaki ZXI 1100 Triples. Includes stainless mounting hardware and o-ring.

Part Number: 01-03-809

Billet Cylinder Head for the Kawasaki 750 and SXR 800. All ADA Racing billet heads are made from 6061-T6 aluminum and CNC machined for consistency and performance. Anodized for durability and protection against salt-water corrosion. This is the head shell only. Includes orings that fit into the grooves in the head shell and brass fittings.

ADA Racing Yamaha 701 Cylinder Head Exhaust Bracket for Non-girdled ADA cylinder heads. This bracket only works with the 3 bolt 701 Superjet style exhaust. It does NOT work with the 4 bolt 760 exhaust. Includes mounting bolts and spacers.

Part Number: YEXBRKT-2L

Billet dome for ADA Racing Kawasaki 800 V2 girdled head and big bore heads. Squish relief is .005" @ 83mm with a 4 degree angle. These domes will not fit our standard head shells, as the diameter is larger than our standard domes. They are notched to fit around the head studs and use a larger diameter compression o-ring (OR153). Domes are sold individually.

ADA Racing Cylinder Head Girdle kit for the ADA Racing Kawasaki 1100 Girdled Head. Girdle design adds strength and rigidity to the cylinder to prevent cracking on ported cylinders. No cylinder mods required for this girdle kit, just bolt it on!

Part Number: KA1100G

Replacement ADA Head O-Ring Kit for Kawasaki 550sx.

Part Number: 01-03-207

ADA Racing 3 degree angled reed spacer kit for the Kawasaki 900 and 1100 engines. Includes billet aluminum spacers, gaskets, and studs. All 3 spacers now include a pulse fitting. The studs that are included are for the stock intake manifold. If you are using an aftermarket intake, you may need to use longer studs if the manifold is thicker that stock.

Part Number: 31-131390

All ADA Racing billet heads are made from 6061-T6 aluminum and CNC machined in-house for consistency and performance. The head shell is then anodized for durability protection against salt-water corrosion. This is the head shell only and includes o-rings that fit into the grooves in the head shell and brass fittings.

ADA Racing Cylinder Head Girdle kit for the new ADA V2 Kawasaki SXR 800 Billet Girdled Head. This girdle kit uses offset base nuts and requires grinding the outside of the cylinder to clearance the girdle studs.

Part Number: KA800G2