Q&A

Q&A

Mailbag: A Quick Guide to Torque-to-Yield Fasteners

Q: What is a TTY bolt? … A: Torque to Yield (TTY) fasteners are used in many modern engines. When torqued properly, they provide better clamping force than standard fasteners. […]

Racing slicks
Q&A

Mailbag: How Long Do Drag Slicks Last?

Q: How long will a set of drag slicks last? … A: The life of a drag racing tire can be determined by many factors. Tire compound, track conditions, vehicle […]

Q&A

Mailbag: Lowering ETs with a New Cam & Intake Manifold

Q: My current project is giving me trouble. I have a 1953 Chevy 1/2-ton truck with a 283 at .030 overbore and .010 under rods and mains. I’m running early […]

Q&A

Ask Away! with Jeff Smith: Diagnosing Oil Pressure Drops in a Big Block Chevy

I have a big-block Chevy in a ‘69 El Camino that I just purchased. I really don’t know much about the engine other than it is a 454 with an […]

Q&A

Mailbag: What is Valve Float and How Do You Fix It?

Q: What is valve float? … A: Valve float is basically when the valvetrain gets out of control. There are two types of valve float: Loft and Bounce. Loft happens […]

Q&A

Ask Away! with Jeff Smith: Upgrading 6L80/6L90 Transmissions for Boost

I have a 2015 Silverado with a 5.3L with long tube headers and I’ve installed a Whipple supercharger. My 6-speed trans is now slipping. Can you give me any direction […]

Q&A

Ask Away! with Jeff Smith: Calculating Valve Spring Clearance for Existing Cam

I bought a set of TFS valve springs (PN 16918-16) for my Summit 8702 cam for an LS engine and I realized these springs are only good up to a […]

Q&A

Mailbag: How to Measure for a New Steering Column

Q: How do I measure for a new steering column? … A: Measuring for a new steering column is pretty easy. Follow the steps below to ensure you will get the […]

Q&A

Ask Away! with Jeff Smith: Cost-Effective Ways to Increase Low-End Torque

I’ve been reading you for years at various magazines like PHR, Hot Rod, and Car Craft. I’ve been curious about the lower end of the torque curve. Looking at various […]

Q&A

Mailbag: Tips for Lifter Replacement in a Ford 460

Q: I have a 1978 Ford E-250 van. The engine is a 460 that’s bored .030″ over, has a 214°/224° @ .050″ flat tappet cam, an Edelbrock 750 cfm carb, […]