Articles written by: Richard Holdener

Richard Holdener is a technical editor with over 25 years of hands-on experience in the automotive industry. He's authored several books on performance engine building and written numerous articles for publications like Hot Rod, Car Craft, Super Chevy, Power & Performance, GM High Tech, and many others.

Ford Engines

Testing a Junkyard Ford 5.0L Engine with New Top End Kit

by × on August 13, 2020 at 3:30 pm × 4 comments

It has always been my contention that the 5.0L Mustang saved Ford, or at the very least, Ford Performance. Prior to the introduction of the 5.0L, Ford was serving up […]

5.3 LS with MSD Atomic intake manifold
LS Engines

Testing HP Increase from ProCharger on 5.3L Iron Block LS Engine

by × on March 26, 2020 at 2:43 pm × 4 comments

What does every enthusiast have in common? No matter what car you drive, what motor you like, or how old you are, we all share the same desire to make […]

Tech Articles

The Easy Way to Make 820+ HP in a 4.8L Junkyard Pull

by × on January 22, 2020 at 4:58 pm × 10 comments

Never before have so many enjoyed so much for so little. Take a look around. We are smack dab in the middle of the second major Muscle Car era, and […]

Tech Articles

Dyno Test: 120+ HP Gains and No Low-End Loss with Cam Swap on 6.2L LS Engine

by × on December 26, 2019 at 11:17 am × 3 comments

Why were we so excited about swapping cams on the all-aluminum L92? Many reasons. The first was that we had previously run the Summit Stage 4 Pro LS cam (SUM-8711) […]

Tech Articles

Dyno Test: Adding 120 HP with Cam Swap in Turbo LS 5.3L

by × on December 12, 2019 at 3:51 pm × 1 comment

LS engines respond well to cam swaps. It’s probably the #1 upgrade for any LS, because the gains can be dramatic. The reason is that the LS engine family, from […]

Tech Articles

Clash of the Turbo Titans: Summit vs. eBay Turbos

by × on November 27, 2019 at 3:37 pm × 7 comments

Turbos rule. If you’re a turbo guy (or gal), there has never been a better time to be an enthusiast. Just look around, turbos are everywhere and on everything. Not […]

Tech Articles

Truck Cam Swap Testing to Add Low-End Torque

by × on October 31, 2019 at 12:26 pm × 10 comments

The LS engine remains the darling of the performance world, but does that mean all LS owners are looking for the same thing when it comes time for upgrades? Obviously […]

Tech / Tech Articles

Four-tify Your LS: Summit Racing Stage 4 Pro LS Camshaft Test

by × on July 4, 2019 at 9:45 am × 2 comments

So what would you do if a company called you and offered up a 5.3L test motor? Now what if these same guys gave you their blessing to throw the […]

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