Description

The Aeroflow Series of Aluminium Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. These heads utilise 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.

Aeroflow's Big Block Chevy cylinder heads are designed for entry-level street performance engines and ideal for operating in the idle to 6750 rpm range. Made from A356 aluminium castings. These complete heads include larger-than-stock 1.625" (41mm) diameter dual valve spring to handle up to 0.850" (21.5mm) maximum valve lift. Recommended spark plugs are 14mm x 3/4" reach with flat gasket seat. Includes valves, valve rings, retainers & locks, guide plates and 7/16" rocker studs.

Specifications

Compatibility

  • Big Block Chevorlet 396-454

The Aeroflow Series of Aluminium Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. These heads utilise 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.

Aeroflow's Big Block Chevy cylinder heads are designed for entry-level street performance engines and ideal for operating in the idle to 6750 rpm range. Made from A356 aluminium castings. These complete heads include larger-than-stock 1.625" (41mm) diameter dual valve spring to handle up to 0.850" (21.5mm) maximum valve lift. Recommended spark plugs are 14mm x 3/4" reach with flat gasket seat. Includes valves, valve rings, retainers & locks, guide plates and 7/16" rocker studs.

  • Chamber Volume: 121cc Chamber
  • Intake port volume: 315cc
  • Intake valve size: 2.25"
  • Exhaust valve size: 1.88"
  • Valve spring diameter: 1.625" (41mm)
  • Spring installed height: 2.08" @ 100lbs
  • Maximum valve lift: 275lbs on seat, .850" Maximum Lift, Max RPM 7400-7600
  • Rocker stud diameter: 7/16"
  • Pushrod diameter: 3/8" (width of slot in guide plate)
  • Spark plug style: Straight
  • Big Block Chevorlet 396-454

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