Mercury Series O9A 4L60E Engine Parts

A real-world guide to 4L60 transmission specs, strength, and swap tips.

Mick Rau has a garage full of cool cars, but this Hirohata-inspired Merc is a standout.

Mike's Cyclone was a rare bird when it left the factory, and it's led an amazing life since then! Mike's goal is to go 200 at Bonneville in a car that has done Hot Rod Power Tour and has logged a ton of street miles...

Engine Cylinder Numbers

To celebrate the upcoming 106th running of the Indianaplis 500, here's a look back at a few of the engines that have competed at the Brickyard over the years.

Wondering what a stroker motor is and how to build one? Speedway Motors has the answers with this stroker motor build guide.

All you need to know about racing a 602 GM crate engine and the necessary parts to make a race ready engine.

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

Overheating is a major cause of DNFs and damaged engines. We'll go beyond the cooling system for solutions to your overheating issues.

BluePrint crate engine warranty details.