What is the most efficient cylinder head design?
Low valve angle heads in the 7- to 12-degree range with port heights of 1.250 inches or more are the most efficient designs possible today. Pro Stock heads are 9- to 10-degrees for a reason.
Who bought AFR heads?
Taglich Private Equity
Air Flow Research (AFR), the manufacturer of high-performance cylinder heads, intake manifolds, and related components, has been acquired by Taglich Private Equity (TPE) in a partnership with AFR’s founding family and management.
What does as cast mean on cylinder heads?
Sold individually, these heads are made from a permanent mold casting that come with As-Cast surfaces on the intake runners, exhaust runners and combustion chambers. These heads are a perfect choice for anyone looking to upgrade to aluminum heads with modern port designs for their muscle car or street rod.
Who makes Patriotheads?
Promaxx Performance
Promaxx Performance still produce Patriots aftermarket Performance Cylinder Heads to suit Small Block Chevrolet (SBC), Big Block Chevrolet (BBC), GM Vortec, Small Block Ford (SBF) and 6.0L Ford.
What is valve throat?
If you look closely at the exhaust valve seat in the head, you will see a small ridge just under the seat. This area is called the throat. This will be the maximum diameter of the venturi area directly below the exhaust valve seat.
What is the difference in open chamber and closed chamber heads?
Open and closed chamber cylinder heads differ in combustion chamber capacity. Although open chamber cylinders offer easier flow, the closed chamber cylinder is better for performance. Compression ratios are also affected by the size of the chambers.
Can cylinder heads be too big?
“Super-sizing” may be a bit of an exaggeration, but cylinder head buyers have been known to opt for valves that are too large. That can result in cylinder heads that don’t fit an engine’s performance needs—or the actual engine itself!
Can you put aluminum heads on a cast iron block?
If you are installing aluminum heads on a cast-iron block, the difference in expansion rates can cause sealing problems. Because of this, composite gaskets seem to work best. Just make sure whatever you use is applicable in an aluminum-head/iron-block situation.
What are the different cylinder head sizes for AFR gear?
Categories AFR Gear Cylinder Heads Enforcer As Cast SBC Eliminator – 23° Cylinder Head SBF Renegade – 20° Cylinder Head LS1 Mongoose – 15° Cylinder Head LS3 Mongoose – 12° Cylinder Head BBF Bullitt – 14° Cylinder Head BBC Magnum – 24° Cylinder Head BBC Magnum – 18º Cylinder Head Manifolds SBC Eliminator – Gen I Manifold
Are AFR’s new cylinder heads affordable?
However, looking for an affordable middle ground, AFR came up with its new line of cylinder heads — The Enforcer. “ [The Enforcer] is aimed at anyone on a limited budget, looking for aftermarket heads with high-quality components from a brand they can trust,” says Tim Torrecarion, marketing and sales director for AFR.
What are the different types of cylinder heads in the enforcer?
Cylinder Heads Enforcer As Cast SBC Eliminator – 23° Cylinder Head SBF Renegade – 20° Cylinder Head LS1 Mongoose – 15° Cylinder Head LS3 Mongoose – 12° Cylinder Head BBF Bullitt – 14° Cylinder Head BBC Magnum – 24° Cylinder Head BBC Magnum – 18º Cylinder Head Manifolds SBC Eliminator – Gen I Manifold SBF Renegade – 20° Windsor Manifold
What are the different degrees of cylinder heads?
Cylinder Heads Select sub-category Enforcer As Cast SBC Eliminator – 23° Cylinder Head SBF Renegade – 20° Cylinder Head LS1 Mongoose – 15° Cylinder Head LS3 Mongoose – 12° Cylinder Head BBF Bullitt – 14° Cylinder Head BBC Magnum – 24° Cylinder Head BBC Magnum – 18º Cylinder Head