Never try to guess at it, since over-tightening a spark plug … For a brand new head, 22 ft/lbs may work ok, but after that, I'd prefer to tone it down a little bit. Helm Inc. 5 manual set (2002 anyways) $120 part number GMT02CK8PU A spark plug that is under-torqued will not be fully seated on the cylinder head, hence heat transfer will be slowed. m 11 lb ft Spark Plug Type 41-952 [AC plug type] Spark Plug Wire Resistance 700 ohms per ft To me, 15 ft/lbs is plenty tight for a spark plug in an aluminum head. 1. I have NGK TR55's that were .055 and now they have opened to .060 and I'm having problems in the upper RPM's. I'm going to pickup some TR5's and gap to .040 I think. Below in this guide are the torque specs of LS based engines. Shop ICT Billet for great deals on LS parts, LT parts, LS engine swap kits, LT engine swap kits, ... cut to fit spark plug wires. This video is about Proper Torque - Spark Plugs By NGK:https://www.denniskirk.com/ngk Use the torque wrench to tighten down the plugs. When in doubt, always check your engine manufacturer's literature. What is your spark plug gap? What are yours gapped at? I'm about to replace my spark plugs with new ones I got the AC Delco's P# 41-121. I want to know what I'm suppose to torque them, I have a 2013 LTZ 1.4L. Torque directly affects the spark plugs' ability to transfer heat out of the combustion chamber. 8.1 15lb ft. 4.8/5.3/6.0 11lb ft. 4.3 new heads 22lb ft used heads 11lb ft Not to preach, but if anyone wants to do more than an oil change on their truck, they should invest in a service manual set. ... Torque Specs. This includes things like LS1, LS2, LS6, L33 and so on. Looking for feeback on ONLY L92 or LS3 head'ed cars. GM LS Spark Plug Wire Set 8.5mm 81028CE - Black Never have burnt or melted spark plug boots again. Especially as the plug has a tapered seat on it. Discussion Starter • #1 • Mar 18, 2009. This will depend on the year of your Lexus, so contact your local Lexus dealer for the correct torque setting for your car. I have always felt the factory goes a bit overboard on it's torque specs on certain things. Installing Spark Plugs Torque is one of the most critical aspects of spark plug installation. I'm doing my first tune up this weekend, someone was telling me that spark plugs need to be torqued down? Here is another simple and EZ Read diagram for the torque sequence on the Chevrolet LSX series of engine. 18 Posts . We make the relocation process as painless and universal as possible. Torque requirements vary greatly from engine to engine. The proper torque of a spark plug can only be achieved using a torque wrench. Torque refers to how tight you should tighten down the plug. Spark Plug Fastener Tightening Specifications. Care must be taken when torquing spark plugs, especially in softer aluminum cylinder heads. 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