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Shop Classic Small Block Chev 327-350 & 400 - 204cc Aluminium Cylinder Heads (Pair)
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Small Block Chev 327-350 & 400 - 204cc Aluminium Cylinder Heads (Pair)

$1,940.24

Complete 204cc Aluminium Cylinder Heads with 67cc Chamber (Pair)

Aeroflow Aluminium Cylinder Heads are taking 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. Include valves, valve springs, retainers & locks, guide plates and 7/16" rocker studs

The Aeroflow Performance small block Chevy cylinder heads are designed for entry level street performance engines to give the ultimate in flow at a budget price. Made from A356 aluminium castings, the 204cc cylinder heads are ideal for operating in the idle to 6500 rpm range. These cylinder heads will fit a 4.00" bore and larger. Theses complete heads include larger then stock 1.43" diameter valve springs to handle up to .575" maximum lift. Suits flat tappet and hydraulic camshafts.

Installed Components
Intake Valves: 2.02" x 4.91" x 11/32", part no. AF59-3501
Exhaust Valves: 1.60" x 4.91" x 11/32", part no. AF59-3502
Valve Springs: 1.43" Single (with damper), part no. AF59-3503
Valve Retainers: 7° 11/32", part no. AF59-3504
Valve Locks: 7° 11/32" part no. AF59-3505
Valve Seals: 11/32" x .530"
Rocker Arm Studs: 7/16"-14 x 7/16"-24, part no. AF59-3506
Push Rod Guide Plates: 5/16" Flat, part no. AF59-3507

Head Specifications
Material: A356 Aluminium
Chamber Chamber: 67cc
Intake Port Volume: 204cc
Intake Port Dimension: 2.22" x 1.31"
Exhaust Port Volume: 70cc
Exhaust Port Dimension: 1.34" H x 1.39" W
Spark Plug Location: Straight
Intake Valve Diameter: 2.02"
Exhaust Valve Diameter: 1.60"
Valve Stem Diameter: 11/32"
Valve Spring Pocket I.D.: 1.49"
Valve Guide Material: Manganese Bronze
Valve Guide O.D.: .530" (.570" at base)
Rocker Stud Thread Size: 7/16" x 14
Valve Angle: 23°
Deck Thickness: .625"

Add To Cart

Complete 204cc Aluminium Cylinder Heads with 67cc Chamber (Pair)

Aeroflow Aluminium Cylinder Heads are taking 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. Include valves, valve springs, retainers & locks, guide plates and 7/16" rocker studs

The Aeroflow Performance small block Chevy cylinder heads are designed for entry level street performance engines to give the ultimate in flow at a budget price. Made from A356 aluminium castings, the 204cc cylinder heads are ideal for operating in the idle to 6500 rpm range. These cylinder heads will fit a 4.00" bore and larger. Theses complete heads include larger then stock 1.43" diameter valve springs to handle up to .575" maximum lift. Suits flat tappet and hydraulic camshafts.

Installed Components
Intake Valves: 2.02" x 4.91" x 11/32", part no. AF59-3501
Exhaust Valves: 1.60" x 4.91" x 11/32", part no. AF59-3502
Valve Springs: 1.43" Single (with damper), part no. AF59-3503
Valve Retainers: 7° 11/32", part no. AF59-3504
Valve Locks: 7° 11/32" part no. AF59-3505
Valve Seals: 11/32" x .530"
Rocker Arm Studs: 7/16"-14 x 7/16"-24, part no. AF59-3506
Push Rod Guide Plates: 5/16" Flat, part no. AF59-3507

Head Specifications
Material: A356 Aluminium
Chamber Chamber: 67cc
Intake Port Volume: 204cc
Intake Port Dimension: 2.22" x 1.31"
Exhaust Port Volume: 70cc
Exhaust Port Dimension: 1.34" H x 1.39" W
Spark Plug Location: Straight
Intake Valve Diameter: 2.02"
Exhaust Valve Diameter: 1.60"
Valve Stem Diameter: 11/32"
Valve Spring Pocket I.D.: 1.49"
Valve Guide Material: Manganese Bronze
Valve Guide O.D.: .530" (.570" at base)
Rocker Stud Thread Size: 7/16" x 14
Valve Angle: 23°
Deck Thickness: .625"

Complete 204cc Aluminium Cylinder Heads with 67cc Chamber (Pair)

Aeroflow Aluminium Cylinder Heads are taking 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. Include valves, valve springs, retainers & locks, guide plates and 7/16" rocker studs

The Aeroflow Performance small block Chevy cylinder heads are designed for entry level street performance engines to give the ultimate in flow at a budget price. Made from A356 aluminium castings, the 204cc cylinder heads are ideal for operating in the idle to 6500 rpm range. These cylinder heads will fit a 4.00" bore and larger. Theses complete heads include larger then stock 1.43" diameter valve springs to handle up to .575" maximum lift. Suits flat tappet and hydraulic camshafts.

Installed Components
Intake Valves: 2.02" x 4.91" x 11/32", part no. AF59-3501
Exhaust Valves: 1.60" x 4.91" x 11/32", part no. AF59-3502
Valve Springs: 1.43" Single (with damper), part no. AF59-3503
Valve Retainers: 7° 11/32", part no. AF59-3504
Valve Locks: 7° 11/32" part no. AF59-3505
Valve Seals: 11/32" x .530"
Rocker Arm Studs: 7/16"-14 x 7/16"-24, part no. AF59-3506
Push Rod Guide Plates: 5/16" Flat, part no. AF59-3507

Head Specifications
Material: A356 Aluminium
Chamber Chamber: 67cc
Intake Port Volume: 204cc
Intake Port Dimension: 2.22" x 1.31"
Exhaust Port Volume: 70cc
Exhaust Port Dimension: 1.34" H x 1.39" W
Spark Plug Location: Straight
Intake Valve Diameter: 2.02"
Exhaust Valve Diameter: 1.60"
Valve Stem Diameter: 11/32"
Valve Spring Pocket I.D.: 1.49"
Valve Guide Material: Manganese Bronze
Valve Guide O.D.: .530" (.570" at base)
Rocker Stud Thread Size: 7/16" x 14
Valve Angle: 23°
Deck Thickness: .625"

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