Aeroflow Bare Ford 390-428 170cc Aluminium Cylinder Heads 72cc Chamber, Pair

Bare Ford 390-428 170cc Aluminium Cylinder Heads with 72cc Chamber (Pair)
2.06" x 1.36" Intake Port, 1.85" x 1.27" Exhaust Port

The Aeroflow Series of Aluminium Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. These heads utilize ultra-smooth A356-T6 aluminium castings, new as-cast runner and chamber designs produce excellent flow numbers. This combined with a 5-angle competition valve job, diamond-honed bronze guides, hand bowl blending and professional assembly help to outperform some of the best brands in the business.

The Aeroflow Ford FE Aluminium Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. These Ford FE heads have 170cc intake runners, combined with diamond-honed bronze guides and hand bowl blending to outperform some of the best brands in the business.

Head Specifications

Material: A356 Aluminium
Chamber: 72cc
Intake Port Volume: 170cc
Intake Port Dimension: 2.065" x 1.36"
Exhaust Port Volume: 125cc
Exhaust Port Dimension: 1.85" H x 1.27" W
Spark Plug Location: Angled
Intake Valve Diameter: 2.09"
Exhaust Valve Diameter: 1.66"
Valve Stem Diameter: 3/8"
Valve Spring Pocket I.D.: 1.725"
Valve Guide Material: Manganese Bronze
Valve Guide O.D.: .562"
Rocker Stud Thread Size: Shaft type
Valve Angle: 13°
Deck Thickness: .625"

IMPORTANT NOTICE:

We recommend checking installed spring seat pressure & open pressure before installing your cylinder heads to make sure the spring pressure is correct for your application.