Hot Four Cylinder
September 25, 2022
THE AUTO BUILDER
Featured
CHEVELLE MEMORIES
“If these four walls could only talk, what great stories they could tell” is an old adage that is certainly apropos from a historical perspective. In the context that we Americans have an ongoing love affair with the automobile, it could also be said that if a classic car could only talk, it could tell some pretty great stories as well!”
Observations From the Field
Call ’em tech tips, building tips, details or whatever you like, but this is the stuff we see at events and shows while shooting features or doing shop tours, not to mention things we’ve discovered while working in our own shops. It’s like when you’re foot-cruising an event with the boys and pointing things out to each other, or when you have a stroke of genius while working on your own project.
TA-LOW
Though only 27 years of age, Mike MacKellar has built an impressive résumé as not only a truck builder, but also a businessman. As the owner of a financial services company, MacKellar is well aware of how much things cost, and it seems that he spared little expense when he set about building this 2001 Chevrolet Tahoe. He also knew just how he wanted his latest project to be.
Spotlighter
Product Spotlight: Proform’s Super-Street GM LS Aluminum Roller Rockers
Unlock Maximum LS Power with Super-Street Roller Rockers
Author
The Auto Builder Staff
Photos Courtesy of Proform Specialty Auto Parts U.S.A.
When you’re chasing horsepower, every ounce of wasted motion is power left on the table. That’s why the Super-Street GM LS Aluminum Roller Rockers are worth a hard look. Proform went back to the drawing board and rebuilt their rocker lineup from the ground up—stronger, smoother, and better-looking than ever.
These beauties are machined from lightweight aluminum, anodized in that unmistakable deep blue, and laser-etched with the Proform “P” and 1.7 ratio. But the real magic is inside: full cage bearing trunnions keep things planted at high RPM, while steel roller tips slice friction like a hot knife through 10W-30. The result? More efficiency, more valve lift, and more of that glorious LS top-end pull.
Designed for Gen III LS1/LS6 (1997–2004) and Gen IV LS2/LS4 (2005–present) V8 engines, these self-aligning rockers are a straight bolt-on with the included M8 hardware and pedestals. They’ll even clear valve springs up to 1.400 inches in diameter, giving you room to get rowdy with your cam choice later.
Why We Love Them: Race Tech for the Street
Because it’s not just about making power—it’s about making power reliably. These rockers reduce friction, sharpen valvetrain response, and look good doing it. They’re engineered to handle the abuse of big cams and high RPM, yet still right at home in a street-driven LS. In short: race-bred tech without the “only on Sundays” attitude.
Key Features & Highlights
- 1.7 Ratio for increased valve lift and flow
- Cage Bearing Trunnions = rock-solid stability
- Steel Roller Tip for minimal friction and wear
- Blue Anodized Finish with etched Proform logo & ratio
- Complete Set of 16 with M8 mounting bolts included
Ready to Upgrade Your LS Valvetrain?
To learn more, CLICK HERE to head over to the Proform to get the full scoop.
