High mileage or a high-performance camshaft swap: Those are the top two reported reasons for LS rocker-arm failure.
The symptoms are a miss with a ticking sound coming from the valve cover or needle bearings in the motor oil, or both. The problem is caused by uncaged bearings that spill out of the side of the arm when they fail from wear, or when the lift of the new cam exceeds the design of the bearing cap, pushing it out of the rocker-arm body.
Rather than risk this on our LS3, we installed an LS rocker-arm bearing upgrade kit from Summit Racing Equipment that replaces the factory bearing and trunnions and adds the safety of snap rings to keep it all in place.
Sources
OEM Tools; 888.453.5148; toolsid.com
Summit Racing; 800.230.3030; summitracing.com
Denne historien er fra March 2021-utgaven av Hot Rod.
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Denne historien er fra March 2021-utgaven av Hot Rod.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
What Is Pro Street?
You know it when you see it.
Pro Street in Pure Vision
Builder Steve Strope weighs in on the Pro Street look and what he would build today.
THE GAS ERA LIVES ON
These vintage race cars chart the evolution of technology in the early days of drag racing.
MOTOR HEAD FOR LIFE
Scott Sullivan is one of the original Pro Street pioneers. He still builds cars today out of a small shop in Dayton, Ohio.
BRINGING BACK PRO STREET!
David Freiburger and Roadkill Garage built a Pro Street Nova.
SWEET ASPIRATIONS
Jerry and Matthew Sweet added an 800ci Pro Stock mountain motor to chase HOT ROD Drag Week's Pro Street NA Record.
Making Bad Decisions Badder
Bradley Gray's 1970 Nova is a Hybrid! It's a streetable Funny Car.
ART PROJECT
This Rad Rides by Troy-built '63 split-window Corvette went from restaurant prop to ripping up the street!
WHERE DO WE GO FROM HERE?
THE PRO STREET ERA PEAKED IN THE '80S. ARE WE IN THE BEGINNING OF A RESURGENCE?
Making Connections
Project T-top Coupe: We install a Terminator X Max for big power.
