Products

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.

Billet Girdled Cylinder Head for the Kawasaki 750 and 800. CNC machined at ADA Racing from 6061-T6 aluminum. Anodized for protection against corrosion. This is the head shell only and includes o-rings that fit into the grooves in the head shell and brass fittings.

ADA Billet Girdled Cylinder Head for the Kawasaki 1100 Engine. CNC machined at ADA Racing from 6061-T6 aluminum. Anodized for protection against 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

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 Racing Cylinder Head Girdle kit for the original ADA Kawasaki 750/800 Girdled Head. Includes all hardware and brackets. No cylinder mods required for this girdle kit, just bolt it on!

Part Number: KA800G

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

ADA Racing billet dome for the Yamaha 760 and 1200 engines, includes compression(OR043) and dome top(OR020) orings. Squish relief is .015 inch @ 86mm with a 10.5 degree angle.

ADA Racing billet dome for the Yamaha 701 and 1100 engines, includes compression(OR043) and dome top(OR020) orings. Squish relief is .015 inch @ 83mm with a 10.5 degree angle.

ADA Racing billet dome includes compression(OR042) and dome top(OR020) orings. Squish relief is .005 inch @ 82.5mm(fits up to 83mm piston) with a 4 degree angle. These domes fit ADA Racing standard 750/800 head and ADA Racing original girdled head with the billet brackets.

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 Billet Cylinder Head Dome for Kawasaki 750. Includes compression (OR042) and dome top (OR020) o-rings. Squish relief is 0 @ 81mm with a 4 degree angle. These domes fit ADA Racing standard 750/800 Cylinder Head and ADA Racing original girdled head with the billet brackets. 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 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 1100 engines. Includes compression (OR042) and dome top (OR020) o-rings. Squish relief is .015 @ 82mm with a 4 degree angle. These domes fit ADA Racing Kawasaki 1100 Cylinder Heads.Domes are sold individually.