Post Tagged with: "cylinder head tech"

Q&A / Tech

Ask Away with Jeff Smith: Is 10:1 Compression Compatible with 91 Octane Fuel?

I want to build a 350 Chevy with iron heads and a 10.0:1 compression ratio. Will that work on 91 octane pump premium fuel? H.C. Seemingly simple questions like this […]

Pro-Filer Performance Cylinder Head

Mailbag: How Exhaust Runner Volume Affects Engine Performance

Q: How is exhaust runner volume measured and how does it affect performance? … A: Exhaust runner volume is the measure of the passage from the exhaust valve to the […]

proper spark plug reach

Ask Away! with Jeff Smith: How Much Power Can I Make By Adding Ported Vortec Heads to My SBC Engine?

You did a tech answer around two years ago which was about adding a set of Vortec heads to a small-block Chevy. How much of a horsepower gain could you […]

Engine Masters Ep. 28 image by Hot Rod
Tech Articles

Do Big Intake Runners Kill Bottom-End Torque? The ‘Engine Masters’ Investigate

The Motor Trend show Engine Masters is all about finding out what makes horsepower and what doesn’t. Hosts David Freiburger and Steve Dulcich have tested everything from headers and carburetors […]

Tech / Tech Articles

Head Start (Part 2): A Basic Guide to Choosing Aftermarket Cylinder Heads

In our Head Start series, we’re giving you the dos and don’ts of choosing aftermarket cylinder heads. Part One covered the don’ts — the most common mistakes people make when cylinder head shopping. Now we’re […]

Q&A / Tech

Mailbag: Mating and Sealing Tips for Milled Cylinder Heads

Q: I have a Chevy 350 small block. The heads have been milled .020-inch; the block and Weiand Stealth intake were not cut. Will I need a thicker intake gasket to […]

Tech / Tech Articles

Head Milling 101: The Basics of Head Milling to Gain Compression

Compression equals horsepower. The reason is simple: The more you squeeze the air and fuel mixture in the combustion chamber, the more power you can create. In theory, forcing air and […]

Tech / Tech Articles

Head Start (Part 1): 6 Common Mistakes to Avoid When Choosing Cylinder Heads

How do I choose the right cylinder heads for my engine? It’s a simple question but the actual answer is more complicated than you’d think. There are many factors involved in […]