Set of 8 NGK TR-55 Spark Plugs for LS Engines - Compatible with all N/A LS engine applications such as LS1, LS2, LS3, LS6, LS7 and GM LS style 1999-2013 Truck Engines.
This is our recommended spark plug for naturally aspirated modified ls engine combinations,. Whether you've got basic bolt-ons and tuning or a huge aftermarket camshaft - the TR-55s are our go-to plug unless your tuner or cylinder head manufacturer suggests otherwise.
NOTE: If you're running high compression, forced induction, or nitrous we suggest that you consider stepping into the NGK TR6 plugs which are one heat range colder.
Heat range 5, copper core. Also known as NGK V-POWER Part Number 3951.
As the largest OE manufacturer of spark plugs in North America, NGK brings more than 80 years of automotive experience into producing some of the best performing and most reliable spark plugs in the industry. From passenger vehicles to race cars, motorcycles to watercraft, NGK offers high-quality spark plugs for nearly every application.