Q&A

Can I put a set of open chamber iron heads on my 396ci big block Chevy? The engine originally used a set of closed chamber oval heads but instead I’d […]

I have an LS7 427ci LS engine that came out of a wrecked, low mileage 2008 Corvette that is now in my ’69 Camaro Pro Touring car. We will soon […]

We’re building a 383ci small block-powered 1972 Chevy pickup and we thought we’d hook the transmission to the engine before we go much further with the build on the truck. […]

I’ve read a story you wrote concerning mixing E85 with gasoline to create a blended fuel with a higher octane. This sounds like an interesting change that might be worth […]

What does indexing the spark plugs mean? I was poking around one of my favorite forums and indexing plugs was mentioned and I’m not sure what they were talking about. […]

I hear numbers thrown all over the place about the horsepower loss from flywheel power to rear wheel power. I’ve heard 10 percent up to 25 percent—which is a huge […]

I was going to buy a stock replacement proportioning valve for my 1969 Nova but a friend said that because I’ve changed so many other parts in my car that […]

Can you determine the intake centerline from reading the cam specs with the intake opening and intake closing figures listed on the cam card? Example: I have a Crane Cams […]

I purchased a 1959 Apache Truck four years ago with a supercharged small block Chevy 350 engine and a Weiand blower. The block is a 1969 model and heads are […]

For a good but not expensive small block Chevy street engine running normal pump gas compression and with some mild performance upgrades, what would be the best piston rings to […]