There is a lot to consider when choosing the proper spark plug for your engine's intended application and power level. Let us take some of the guesswork out with our spark plug buyer's guide.

Performance Spark Plug Buyer’s Guide

Learn how to install spark plug wire terminal ends. Our step by step guide takes you through terminal end and boot installation with the use of a wire crimping tool.

How To Crimp Spark Plug Wires and Install Boots

In preparation to transplant a 430hp 383 stroker into Project Chevelle, Zach R. made up a set of plug wires for the car. To keep it nice and tidy they needed to be routed just right, be the perfect length and not distract from the engine!

Perfect Fit Spark Plug Wires

Spark Plug Cross Reference Guide

Speedway Tech Zach discusses the Pertronix Ignitor III conversion in his '55 Chevy.

Installing a Pertronix Ignitor III

Are you a collector of automotive signs? This is a DIY project where you will learn how to convert a hardwired sign to a plug in. Jess M. explains each step to get the job done!

Converting a Hardwired Sinclair Sign to Plug-In

Instructions on how to install a PerTronix Ignitor Kit in an old flathead distributor for a flathead V8.

PerTronix Ignitor Install

Engine Family Facets

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NGK Iridium IX Spark Plugs

NGK Iridium IX Spark Plugs | Speedway Motors

Shop NGK Iridium IX Spark Plugs and get Free Shipping on orders over $175 at Speedway Motors, the Racing and Rodding Specialists. NGK Iridium IX Spark Plugs in-stock with same-day shipping.

NGK N7397 Spark Plug TR51X Iridium IX Spark Plug

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NGK N7397 Spark Plug TR51X Iridium IX Spark Plug