Cylinder head gaskets have certainly evolved over the years. We’ve gone from steel to composite to graphite and finally back to steel (at least something similar to steel) again. And […]
I am building a mild street engine and researching my existing heads for air flow. The casting number on my cylinder heads reads 10147898: It appears these are 1995 through 1998 350ci […]
Here is a simple question: Do cylinder heads help determine the effectiveness of your Ford combo, or, does the combo help determine the effectiveness of the heads? The reality is […]
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 […]
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 […]
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 […]
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 […]
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: 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 […]
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 […]
