Common Firing Orders

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend.

What is a sway bar and what does it do? Understand how sway bars reduce body roll, improve cornering, and what's best for your car or truck

Learn the differences between Chevy 2-bolt and 4-bolt main blocks, how to ID them, key years, and whether a 4-bolt is worth it for your build

Learn how to ID a Ford 8.8 rear end by tag, width, and code. Compare 8.8 vs 9-inch axles, decode gear ratios, and find which Ford models used them.

Old trucks are just meant to have manual transmissions. They're made even better with a modern overdrive like a Tremec TKX. Watch our C10 manual transmission conversion on an LS-swapped '68 to see just how easy it is to row your own gears,

Estimate horsepower, trap speed, and ET with our drag performance calculator. Use it as a 1/4 mile time estimator or 1/8 mile ET to mph calculator.

Learn what a manual valve body can and cannot do for your automatic transmission and performance driving needs

Does painting your radiator black affect cooling ability or is it an old wives’ tale? If painted properly your cooling system will be fine.

The 700R4 is a great choice when it's time to upgrade your classic car or truck with an overdrive transmission. Here's what you need to know about GM's famous 4-speed automatic.

Comparing open diff vs limited slip vs locker differentials. Learn how each works, pros and cons, and which is best for your build.