NGK G-Power TR-5GP Spark Plugs (.040 GAP) – GM LSx V8 Applications (Set of 8) – NGK-3186-8

NGK G-Power Spark Plugs -.040 Plug Gap What GAP to use? Prior to 2005 GM used .055 GAP�spark plugs on all LSx motors. Starting in 2005, they switched to .040 GAP (this size) plugs�to provide a better idle�when things like cheap gas are�encountered. Any LS2, LS3, L99, or LS7 will come from the factory with a .040 GAP This tip is an upgrade over the standard LSx style�plugs with better design and performance qualities. Improved Fuel Efficiency, Lower Emissions, Quicker Starts. Fine platinum tip reduces required voltage Extremely durable under high heat �Trivalent Metal Plating� has superior anti-corrosion and anti-seizing properties Faster starts and quicker acceleration Better fuel economy and lower emissions Best platinum spark plug at an economical cost Fits most GM LSX (LS1, LS2, LS3, LS6, LS7 etc) applications.