64180-CNC PWHeads 186cc CNC Pocket Ported Aluminum Cylinder Heads Pair (bare). Fits SB Chevrolet
Performance World 64180-CNC PWHeads 186cc CNC Pocket Ported Aluminum Cylinder Heads Pair (bare). Fits SB Chevrolet


 
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SB Chevrolet 186cc (with 5-Axis CNC Bowl Blend) Bare Aluminum Cylinder Heads. Fits 4.00" and larger bore. 2.02" intake, 1.60" exhaust, 67cc combustion chambers. These heads offer a huge increase in flow over the non-ported 64180. Manufactured from A356-T6 aluminum, they feature bronze guides and straight plug design. Each head comes with a detailed flow sheet. Download Data here - DOWNLOAD Ready for assembly and sold as pairs. Download Installation Tech here - DOWNLOAD
Everyday Low Price: CDN $1,149.99

Stock Status:In Stock

Product Code: 64180-CNC
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Description Technical Specs
 
SB Chevrolet 186cc (with 5-Axis CNC Bowl Blend) Bare Aluminum Cylinder Heads. Fits 4.00" and larger bore. 2.02" intake, 1.60" exhaust, 67cc combustion chambers. These heads offer a huge increase in flow over the non-ported 64180. Manufactured from A356-T6 aluminum, they feature bronze guides and straight plug design. Each head comes with a detailed flow sheet. Download Data here - DOWNLOAD Ready for assembly and sold as pairs. Download Installation Tech here - DOWNLOAD
Optional Parts
  • Valve Seals: PW 360480
    Intake Valves = PW 360020
    Exhaust Valves = PW 360016
    Guide Plates = PW 360200
    Spark Plugs: Autolite 3924 or equivalent
    Head Bolts: ARP 134-3601
    Head Studs: ARP 134-4001
    Head Gaskets: Fel-Pro 1003
    Intake Gaskets: Fel-Pro 1204
    Exhaust Gaskets: PW 412

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Categories A-H > Cylinder Heads (PW Heads) > Chevrolet Cylinder Heads