Nissan Rb 30 Sohc Head Stud Kit 12 Point 1/2" Large Size Holden Billet Swivel Thermostat Housing -

Billet Swivel Thermostat Housing - Black Finish

and is sealed together using an o-ring groove to prevent leaks

Barb Inlet

Billet Aluminium Swivel Red Anodised

PFETH-802R

Nissan Rb 30 Sohc Head Stud Kit 12 Point 1/2" Large Size Holden Billet Swivel Thermostat Housing -Part Number: AF37 2041 Aeroflow performance head studs greatly improve your cylinder head to block sealing compatibilities. This is important in engines with high power adders such as turbochargers, superchargers or nitrous. They can even be a great addition to a mildly modified build as insurance against failure. All head studs provide a more accurate and consistent torque loading over traditional head bolts. these head studs are manufactured from