ISR Performance Thermostat - Nissan VQ35DE - 68 Degree WindshieldWipers Ranger 1977 - 1978 Ford

Ranger 1977 - 1978 Ford F-100 Northland 1978 - 1981 Ford F-100 Ranger Lariat 1977 Ford F-100 XLT 1977 - 1978 Ford F-150 Northland

Say goodbye to harsh and damaging chemicals

Sold in a pair of 2 spacers

light smoke

Retainers 780-100 Valve springs with larger diameters require retainers to handle the higher pressures developed by the springs

ISR Performance Thermostat - Nissan VQ35DE - 68 Degree WindshieldWipers Ranger 1977 - 1978 FordISR Performance Thermostat Nissan VQ35DE with water port 68 Degree ISR Performance colder thermostat for VQ35DE Engines. Good upgrade for High performance engines, The ISR units opens at 68 deg celsius compared to factory 78 deg celsius. Cool down your motor before heat builds up! Once the engine is fully warmed up the ISR thermostat will open up at a lower temperature than standard thermostats, also allowing the coolant to flow through the engine