Gr. 7 1HZ, 1HDT Performance Head Gasket - Toyota 11115-17010-07 - Made in USA

Grade 7 Performance MLS Head Gaskets to suit all Toyota 1HZ, 1HZ-T and 1HD-T engines

Special Order Only - Contact us to order this gasket

Engine Australia has worked with Cometic Gaskets to develop these Performance head gaskets.

There is no OEM equivalent to the Grade 7 head gasket. This gasket has been specially developed for engine builders with excessive piston protrusion or wanting to reduce cylinder pressures in high boost applications.

When used with the ARP2000 head studs there is more control of cylinder pressures by less head lift and better combustion chamber sealing.

Gasket selection by Piston Protrusion for 1HZ
GHPTO350G7 – Use for piston protrusions between 0.656 - 0.755mm

Gasket selection by Piston Protrusion for 1HZT / 1HDT
GHPTO350G7 - Use for piston protrusions between 0.726 - 0.825mm

We highly recommend using ARP2000 head stud kits with these gaskets – HSKTO340 (1/2”) or HSKTO340A (11mm)

Factory Service Manual pages regarding piston protrusion

Diesel Performance Parts:
GHPTO350G7

Designed in Australia - Made in the USA by COMETIC Gaskets.

11115-17010-07
11115-17040-07