Aeroflow Bare SB Chev 327-350-400 212cc Alum Cylinder Heads with 66cc Chamber

Bare Small Block Chev 327-350-400 212cc Aluminium Cylinder Heads with 66cc Chamber (Pair)
2.21" x 1.30" Intake Port, 1.42" x 1.53" 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 Performance small block Chevy cylinder heads are designed for street / race performance engines to give the ultimate in flow at a competitive price. Made from A356 aluminium castings, these 210cc cylinder heads are ideal for operating in the idle to 7500 rpm range. These complete cylinder heads will fit a 4.00" bore and larger.

Head Specifications

Material: A356 Aluminium
Chamber: 66cc
Intake Port Volume: 210cc
Intake Port Dimension: 2.21" x 1.30"
Exhaust Port Volume: 72cc
Exhaust Port Dimension: 1.42" H x 1.53" W
Exhaust Port Location: Raised .250"
Spark Plug Location: Angled
Intake Valve Diameter: 2.08"
Exhaust Valve Diameter: 1.60"
Valve Stem Diameter: 8mm
Valve Spring Pocket I.D.: 1.57"
Valve Guide Material: Bronze
Valve Guide O.D.: .502" (.560" at base)
Rocker Stud Thread Size: 7/16" x 14
Valve Angle: 23°
Deck Thickness: .750"

Suggested Components

Head Gasket: Fel-Pro 1003
Intake Gasket (1.31" x 2.22" Port Size): Fel-Pro 1206
Exhaust Gasket (1.55" x 1.55" D Port Size): Fel-Pro 1405
Head Bolts: ARP 134-3601 or Aeroflow AF37-2100
Head Studs: ARP 134-4001 or Aeroflow AF37-2000
Spark Plugs (14mm x 3/4" reach with flat gasket seat): Champion RC9YC

IMPORTANT NOTICE:

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