Recent Posts

This is an aftermarket 12 bolt. The area behind the main caps is solid (instead of hollow) and the caps are massive. Because of this, there is no need for a billet cap or a rear cover girdle. (Image/Wayne Scraba)
Tech Articles

Dana 60 vs. GM 12-Bolt vs. Ford 9”: The Pros & Cons of Popular Rear End Assemblies

You’d think selecting a rear end for a project car would be easy. It’s not. Browse Summit Racing’s website or catalog and you’ll discover there are almost too many choices. […]

Photo Gallery: Goodguys Lone Star Nationals (Part 2)
Events

Photo Gallery: Goodguys Lone Star Nationals (Part 2)

FORT WORTH, TX – The Goodguys 26th Summit Racing Lone Star Nationals took place this past weekend at Texas Motor Speedway, and is customary with the the always-excellent Goodguys shows, amazing cars […]

(Image/YouTube - LS Engine Supply)
LS Engines

L59 5.3L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More

Mechanically similar, General Motors’ LS and LS-based Vortec engines wound up on almost every branch of the GM family tree: Chevy, Pontiac, GMC, Cadillac, Buick—heck, even Saab, Hummer, and Isuzu got some […]

Photo Gallery: Goodguys Lone Star Nationals (Part 1)
Events

Photo Gallery: Goodguys Lone Star Nationals (Part 1)

FORT WORTH, TX – As we’ve come to expect from Goodguys events, the Goodguys 26th Summit Racing Lone Star Nationals at Texas Motor Speedway was chock full of amazing cars most […]

(Image/OnAllCylinders - Patrick Hill)
Tech Articles

Ask Away! with Jeff Smith: Does 40% Leakdown Test Results Require New Piston Rings?

I just bought a used 5.3L LS engine out of the junkyard and after we got the engine back to the shop and mounted it on an engine stand, we […]

(Image/David Classic Cars)
Q&A

Mailbag: Breathing Life Into a Wheelchair-Friendly 5.0L-Powered Ford E-150 Econoline

Q: Back in the day, my buddies and I used to rule the local dragstrips. The memories! Today, I’ve got gray hair and I’m mostly stuck in a wheelchair, but […]

(Image/StangNet.com - Josh1892)
Tech Articles

Ask Away! with Jeff Smith: Diagnosing Ticking Noises and White Smoke in a Supercharged ’93 Ford Mustang GT

I’ve been looking online for help to figure out what is happening to my car and I thought your expertise may help. I have a supercharged ‘93 Mustang GT with […]

(Image/Dakota Digital)
LS Engines

L99 6.2L Engine Upgrade Guide: Expert Advice for L99 Mods to Maximize Performance

[Editor’s Note: This L99 engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing at […]

Video: Pro Tips for Cooling System Maintenance and Repair
Videos & Galleries

Video: Pro Tips for Cooling System Maintenance and Repair

An effective cooling system is critical to achieving peak engine performance. In today’s video, Jason Mirth, US Motor Works’ product manager for cooling systems, shares pro tips for replacing your […]

RIP, Burt. (Image/100.7 WITL)
Car Culture & Entertainment

Here are the 2018 OnAllCylinders Readers’ Choice Award Winners

The OnAllCylinders Readers’ Choice Awards are an opportunity for readers to share their thoughts on a wide array of automotive categories. Throughout the past month, you’ve done that. Loyalties are […]