Air Flow Research Cylinder Heads Vortec Street 190CC Pair W/65CC Combustion Chamber Small Block Chevy Engines

Boost your Small Block Chevy engine’s power potential with a pair of Air Flow Research 190CC Vortec street cylinder heads. These heads provide 100% CNC-ported intake, exhaust, and combustion chambers for optimized airflow. They’re compatible with engines from 350-383 cubic inches that operate up to 6,000 RPM. Each head is constructed of A356 aluminum to ensure a lightweight design that handles heat with ease. These heads are sold as a pair and are machined for both center bolt and perimeter bolt valve covers.

Specifications:
- Material: A356 aluminum
- Intake port volume: 190CC
- Intake port dimension: 2.320" H x 1.297" W x 3/8° radius
- Intake port location: Stock
- Exhaust port volume: 64CC
- Exhaust port dimension: 1.450" H x 1.550" W
- Exhaust port location: .100" raised
- Combustion chamber size: 65CC
- Valve cover bolt pattern: Center & perimeter bolt
- Valve angle: 23°
- Valve spring pocket diameter: 1.460" O.D
- Max valve spring pocket machining: 1.750" O.D

Warnings:
- These products are illegal to operate on any public highway. This means any public paved or unpaved roadway or in a public park. These products are only legal if used on a dedicated racing vehicle. Violations are subject to a maximum penalty of $37,500 per violation per vehicle, revocation of registration by DMV, loss of use on public right of ways, and proof of correction of the tampering.
- These heads are not compatible with self-aligning rocker arms.