Mailbag: What Lifters Should I Use For My 360 Dodge Magnum Cam Swap?
Q: I’m building a 360 Dodge Magnum engine, and want to install a performance hydraulic roller camshaft. I can’t find the replacement OEM lifter alignment bars that the stock roller lifters require. Is there another lifter option for this engine? A: Yes! You can use Howards Cams retrofit hydraulic roller lifters. They work in both LA
2018 Speed Week Update: Danny Thompson Sets New 448.757-MPH Record at Bonneville
Driving his Challenger II land speed record car, Danny Thompson set a new AA/Streamliner record at the 2018 SCTA Speed Week in Bonneville, UT with a two-run average of 448.757 miles per hour. In case you were wondering, that makes the Challenger II the fastest piston-powered car in the world. (The record was previously held
Photo Gallery: Hot August Nights 2018 (Part 1)
RENO, NV. — Working in the automotive performance industry has several perks. One of them is the ability to attend Hot August Nights and call it ‘work.’ Our friend Nicole Kunar on Summit Racing‘s social media team spent most of last week in the biggest little city in the world, taking photos of all the excellent
Parts Bin: Edelbrock Pro-Flo 4 Electronic Fuel Injection Systems
Most common types of electronic fuel injection (EFI) conversion kits rely on a single throttle body to deliver fuel into the intake manifold—very much like a traditional carburetor. But a lot of modern engines use something called multi-port fuel injection (MPFI) in which multiple injectors are used, often placed further downstream in the manifold, directly
Ask Away! with Jeff Smith: Can I Mix Zinc Additive with Off-the-Shelf Motor Oil to Save Money?
Why can’t I just add a bottle of zinc additive to my oil and then just use regular off-the-shelf oil? Won’t that work just as well as those more expensive hot rod oils that have higher zinc levels? GM used to sell an additive called Engine Oil Supplement and we used to add that to
Vote NOW! The Top 10 Facebook Fan Rides of July 2018
Things really heated up in July—and we’re not just talking about the temperatures! The fans over on Summit Racing’s Facebook page have once again put the hot in hot rod by sharing some fantastic muscle cars, trucks, street rods, and customs. Below are the 10 most popular Summit Racing Facebook fan ride submissions of July
Horsepower Wars: $10K Drag Shootout Episode 1
Welcome to the Horsepower Wars $10K Drag Shootout. The concept is simple: Four teams, 10 days, and $10,000 to build a no-holds-barred drag car that can beat the rest. Each team gets $3,000 in cash and a $7,000 Summit Racing Gift Card to modify their respective cars with a single goal in mind: being faster
L96 6.0L 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 LS love. Since LS and Vortec engines are so common, they’ve become the go-to performance and swap engines of the modern era. These motors are
Lot Shots Find of the Week: 1969 Pontiac Laurentian
Ever hear of a Pontiac Laurentian? Yeah, neither had we—in fact, the only time we’ve ever heard the word ‘Laurentian’ was in the context of the proposed resting place of the fictional submarine Red October. So when we spotted a real Pontiac Laurentian in the Summit Racing retail store parking lot a few weeks ago,
Video: How a Twin-Tube Shock Works
When it comes to shock/strut construction, the two most popular designs are twin-tube and monotube. Our pals at Summit Racing made a good video comparing/contrasting the two—you can watch it here. In a daily-driven vehicle, the twin-tube design is typically the most common, as it delivers an excellent balance of performance and price. To give




Stay Connected