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Aeroflow Bare Aluminium Cylinder Heads BBC, AF95-0427
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https://www.supercheapauto.com.au/p/aeroflow-bbc-396-427-454-pair-bare/SPO6388124.html
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Item No. SPO6388124
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Product Info
Product Info
Bare Aluminium Cylinder Heads (Pair), 315cc Runner with 121cc Chamber
Suit Big Block Chev, Rectangle Port
Suit Big Block Chev, Rectangle Port
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 valve spring with damper to handle up to 0.850" (21.5mm) maximum valve lift. Recommended spark plugs are 14mm x 3/4" reach with flat gasket seat.
Head Specifications:
- Chamber volume: 121cc Chamber
- Valve spring diameter: 1.625" (41mm) Single spring with damper
- Spring installed height: 2.080" @ 100lbs
- Rocker stud diameter: 7/16"
- Pushrod diameter: 3/8" (width of slot in guide plate)
- Maximum valve lift: 275lbs on seat, .850 Maximum Lift, Max RPM 7400-7600
- Intake port volume: 315cc
- Intake valve size: 2.25"
- Exhaust valve size: 1.88"
- Spark plug style: Straight