MotorTrend

Engine Masters | Episode 26: How Much Boost Can a Stock Engine Take?

On episode 26 of Engine Masters, find out if you can stuff 25 psi of boost into a cast-piston, stock-crank short-block and have it live! Watch as David Freiburger, Steve Dulcich, and Steve Brule strap a ProCharger centrifugal supercharger to a bone-stock Chevy 350 bottom end and keep stepping up the boost to find the breaking point. But there’s a hitch: They agreed they would let the engine live if it could make 750 hp and survive. So did the guys leave parts on the floor, or did they make stupid power with a foolish combo? They did the best they could to show you blow-through boost tuning by keeping the ignition timing and the air/fuel ratio very conservative while also using Rockett Brand 118-octane fuel to prevent detonation.

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Increasing engine displacement with a stroker kit is a proven way to get more horsepower and torque, but exactly how much power can you expect? In this test of “there’s no replacement for displacement,” the hosts of Engine Masters presented by AMSOIL and sponsored by Mr. Gasket and Earl’s Vapor Guard run a dyno comparo you’ve probably never seen before: two engines with all the same specs except for the crankshaft stroke. One small-block Mopar engine is a 410ci stroker, while the other is a 367ci stocker with an overbore. They use the same carb, intake, cam, heads, compression, and headers. You think the bigger engine makes far more horsepower? You may be in for a surprise.

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HOT ROD senior editor KJ Jones follows this 1970 Chevy Nova SS’s profitable sale at Mecum Auctions Indy 2025.

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The 28th Annual HOT ROD Power Tour Driven by Continental Tire is heading south for 2022 and returning to its traditional running time in early summer. Starting Monday, June 13, 2022, and running through Friday, June 17, 2022, the world's largest traveling car show will begin its 1,000-mile journey through the small towns of the American South at Memphis International Raceway in Millington, Tennessee!

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It’s roomier, fancier, nearly as efficient as the Model Y, and it can charge in 3 minutes. Is the Onvo L60 good enough to topple Tesla’s global best-seller?

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HOT ROD Drag Week 2025 once again put the toughest street cars in the country to the test. Over five days and more than 600 miles, racers had to prove they could drive their cars on the street and still lay down serious numbers at the track. From six-second Unlimited cars to 10-second cruisers, the competition was stacked. In the end, Ned Dunphy’s 3,000-hp Dodge Viper was the best of the field, averaging 6.17 at 247 mph to set a new record and lock down the title of America’s Fastest Street Car.

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Ever heard a Viper at full scream? Mopar Muscle Magazine recently had the opportunity to strap one to our Dynojet dyno and let it roar. Check out the video and turn your speakers up!

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As a way to connect with enthusiasts, Kendall Motor Oil decided to embark on building a restomod 1967 Shelby-inspired Mustang GT500 project car.

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Check out the great racing action at Atco Dragway from HOT ROD Drag Week Day 3.

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