What kind of cylinder head does a Chevy small block use?
What kind of cylinder head does a Chevy small block use?
But what many enthusiasts don’t know is that the company has also been not-so-quietly building a reputation as a full line cylinder head company when it comes to the ubiquitous small-block Chevy. Case in point is the 165-cc Iron Eagle SS head, which is Dart’s entry-level cylinder head running 1.94/1.50-inch valves and a 72-cc combustion chamber.
Can a circle track engine have a cast iron head?
Circle track engines are usually rule constrained. Some tracks only allow cast iron heads depending on the class. If we’re talking small block Chevys, some rules only allow heads with stock port locations and stock 23 degree valve angles. Others may allow any head configuration with raised ports and shallower valve angles.
How much does a cast iron engine block weigh?
Many blocks are half the weight of traditional iron blocks. This is especially important when you consider that every bit of that weight is over the front axle, which is a detriment to handling.
Can a cast iron cylinder head be used?
Some tracks only allow cast iron heads depending on the class. If we’re talking small block Chevys, some rules only allow heads with stock port locations and stock 23 degree valve angles. Others may allow any head configuration with raised ports and shallower valve angles.
Which is better aluminum or cast iron cylinder heads?
It all depends on the cam, RPM range and where you want the engine to make the most power and torque. Aluminum heads are lighter than cast iron, saving maybe 25 to 30 lbs. per head depending on the application. In a 3500 to 4500 lb. street car, that’s not a lot of weight savings, but in a 2,500 lbs. race car it is.
Circle track engines are usually rule constrained. Some tracks only allow cast iron heads depending on the class. If we’re talking small block Chevys, some rules only allow heads with stock port locations and stock 23 degree valve angles. Others may allow any head configuration with raised ports and shallower valve angles.
Where are the casting numbers for small block cylinder heads?
Casting numbers for small-block cylinder heads are usually located between the valve spring seats under the valve cover for Gen I and Gen II heads and in the valve galley on the newer cylinder heads.
Many blocks are half the weight of traditional iron blocks. This is especially important when you consider that every bit of that weight is over the front axle, which is a detriment to handling.
