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The VFactor 23° cylinder heads start with a premium Aerospace Specification A356 (Primary Virgin Ingot) aluminum casting which is both light weight and extremely corrosion resistant that is semi-finished by Pro-Filer Performance. This casting also features a solid rocker pad for improved valvetrain stability and a revised spark plug location to improve flame travel. We then complete the machining process on one of our in house 5 axis CNC machining centers. This includes CNC machining of the intake and exhaust ports as well the combustion chambers. Heads are finished with a Custom Multi-Angle Valve Job, valve guides honed to size and deck surface finished for MLS Head Gaskets.

"I will be the first to say they are bad ass and will make serious power on any combination matched to them. I was very happy to see someone take the heads I designed and do with them exactly what they where meant for. I designed the head so head porters could take them to extreme levels of efficiency. I truly didn't expect it so soon but here it is! Chad was instrumental in the "Head porter" version of the Pro-Filer 23º head. He told me what he wanted and needed and Pro-Filer made them. It's now a standard number." - Darin Morgan on the VFactor Pro-Filer line


VFactor Heads can be purchased bare or fully assembled.
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VFactor 23° v2.70/250cc LBSR VFactor 23° v2.70/250cc LBSR

The VFactor 23° v2.70/250cc LBSR is a Large Bore cylinder head. This cylinder head is an excellent option for 421-434 CI engines.

Heads can be purchased bare or fully assembled.

Our Price: $3,799.99
VFactor 23° v2.50/227cc LBSR VFactor 23° v2.50/227cc LBSR

The VFactor 23° v2.50/227cc LBSR is a Large Bore cylinder head. This cylinder head is an excellent (and the most popular) option for 406-421 CI engines.

Heads can be purchased bare or fully assembled.

Our Price: $3,799.99
VFactor 23° v2.35/205cc SBSR VFactor 23° v2.35/205cc SBSR

The VFactor 23° v2.35/205cc SBSR is a dedicated Small Bore cylinder head. This is the perfect head for 4.060" bore, 389 CI and smaller builds. Take advantage of one of the only dedicated small bore offerings in the industry!

Heads can be purchased bare or fully assembled.

Our Price: $3,799.99
VFactor 23° v2.35/205cc LBSR VFactor 23° v2.35/205cc LBSR

The VFactor 23° v2.35/205cc LBSR is a Large Bore cylinder head. This cylinder head is an excellent option for 377-410 CI engines.

Heads can be purchased bare or fully assembled.

Our Price: $3,799.99
VFactor 23° v2.50/227cc SBSR VFactor 23° v2.50/227cc SBSR

The VFactor 23° v2.50/227cc SBSR is a dedicated Small Bore Cylinder Head. This is a great option for 4.060" bore, 389 CI and smaller engines that require more airflow than the VFactor 23° v2.35/205cc SBSR.

Heads can be purchased bare or fully assembled.

Our Price: $3,799.99
VFactor 23° v3.00/265cc LBMR VFactor 23° v3.00/265cc LBMR

The VFactor 23° v3.00/265cc LBMR is simply one Bad Ass 23° cylinder head! This is our largest, best flowing cylinder head and supports 850+HP N/A!

Note: The VFactor 23° v3.00/265cc LBMR does require the use of a Raised Runner Intake Manifold due to the floor being raised above the typical Standard Runner location.

Heads can be purchased bare or fully assembled.

Our Price: $4,299.99