Set of 8 NGK TR55 Spark Plugs for LS EnginesSet 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

660" lift) valve spring kit with steel retainers (includes valve seals)

"The 224/228 camshafts use lobes that are designed to be both beehive & double valve spring friendly

NEW 600 Mild option

The Stage 3 V2 camshaft is an amazing all around grind for the truck enthusiast

450 lbs @ 1

These use a polyurethane bushing with a 9/16″ grade 8 bolt to allow the engine and frame to rotate relative to each other reducing vibration and loading

Mild Street Performance

Designed for 2

NEW 800 Mild option

2L rectangular port cylinder head applications

We also offer pre-made PTFE braided stainless transmission line kits and transmission coolers available as a package here

Coil Bind Max (in): 1