Are Vortec heads fast burn?
GM Performance’s New Vortec Heads Promise Big Flow Numbers For A Modest Investment. GM Performance responded with the 23-degree, aluminum Fast Burn head. Its 210cc intake runners and raised intake valves made it capable of supporting more than 500 hp.
Are Vortec heads cast iron?
VORTEC CYLINDER HEADS These value-priced cast-iron cylinder heads use modified combustion chambers and high velocity port technology to provide improved performance.
How many cc are Vortec heads?
These large chamber heads shrouded the valves even more than the older 64-cc chambers and did nothing to improve airflow. Not so ironically, the Vortec returned to a 64-cc chamber mainly because the current trend for all engines is with smaller, tighter chambers to improve both flow and chamber activity.
What do Vortec heads flow?
In essence, the Vortec head uses the iron LT1 chamber intake and exhaust ports in a standard-water-flow iron head. These production Vortec heads were used in the new Vortec 350ci engine intended for -, -, and 1-ton Chevy pickups.
How do I get more valve lifts?
Every little bit counts when it comes to performance and an excellent way to squeeze some extra power out of your engine is by increasing your rocker arm ratio. For example, moving from a 1.5 ratio rocker arm to a 1.6 would effectively increase the overall valve lift.
What is the best vortec heads?
The 185cc Vortec Bow-Tie is the best “under 200cc intake runner head” on the market. It is excellent for circle track, street, drag racing & marine applications.
What are Vortec cylinder heads?
VORTEC BOWTIE CYLINDER HEADS. Vortec Bowtie cylinder heads are the most powerful cast-iron heads offered by Chevrolet Performance. These upgraded production cylinder heads are ideal for 400-450 horsepower street and racing (great for circle track applications) engines.
What exactly is a Vortec engine?
Vortec is a trademarked name for a line of small block engines for General Motors trucks. The name first appeared in a 1984 advertisement for the 1985 model year 4.3 L V6 that used “vortex technology” to create a vortex inside the combustion chamber, creating a better air/fuel atomization. Now it is used on a wide range of engines.
What is a Vortec head?
The Vortec line of cylinder heads was introduced by GM in 1988 as a V6 with a 4.3-liter displacement. This technology created a vortex or pressurized swirl of fuel and air mixture inside the combustion chamber that enables the engine to produce more power while still gaining a marginal amount of fuel efficiency.