Rb 20 Rb 25 Rb 30 Holden Nissan Silver Thermostat Hous RB30 af49-1042 and af49-1057

af49-1042 and af49-1057

Part Number: AF3503-0010

Also required for many aftermarket cylinder heads to reduce from 5/8 thread down to 7/16 for mounting factory accessories

used to convert c4 transmission from case fill topan fill

and have all factory hose connections - even the coolant cap is a direct crossover

Rb 20 Rb 25 Rb 30 Holden Nissan Silver Thermostat Hous RB30 af49-1042 and af49-1057Part Number: AF64 4029S suits nissan rb20 rb25 rb30 (factory oem non swivel straight) this Aeroflow performance billet thermostat housing is specifically designed to suit nissan rb20, rb25 or rb30 engines and is factory oem direct replacement. withthe radiator hose outlet facing straight allows for oemconfiguration. It features an internal 16orb thread for custom plumbing applications as well. Machined from t6 6061billet aluminium and availablein