90315 PWHeads 320cc Aluminum Cylinder Heads Bare (pair) Fits BB Chevrolet 454-502
Performance World 90315 PWHeads 320cc Aluminum Cylinder Heads Bare (pair) Fits BB Chevrolet 454-502
 
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BB Chevrolet 320cc Aluminum Cylinder Heads. 2.25" intake, 1.88" exhaust. 120cc combustion chambers. Rectangle port intake. .375" raised exhaust ports. These heads flow 364cfm! Best suited for high revving 454, or 502ci up Big Blocks. NOTE: Factory OE intake manifolds DO NOT FIT! You will need a large port aftermarket intake such as the Edelbrock Victor or Super Victor. Check your intake manifold BEFORE ordering! Manufactured from A356-T6 aluminum. Each pair comes bare with a detailed flow sheet. Download Data here - DOWNLOAD Sold as pair, bare ready for assembly. Uses 11/32" x +.250" length Intake valves & 11/32" x stock length exhaust valves. Download Installation Tech here - DOWNLOAD
Everyday Low Price: CDN $1,769.99

Stock Status:In Stock

Product Code: 90315
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Description Technical Specs
 
BB Chevrolet 320cc Aluminum Cylinder Heads. 2.25" intake, 1.88" exhaust. 120cc combustion chambers. Rectangle port intake. .375" raised exhaust ports. These heads flow 364cfm! Best suited for high revving 454, or 502ci up Big Blocks. NOTE: Factory OE intake manifolds DO NOT FIT! You will need a large port aftermarket intake such as the Edelbrock Victor or Super Victor. Check your intake manifold BEFORE ordering! Manufactured from A356-T6 aluminum. Each pair comes bare with a detailed flow sheet. Download Data here - DOWNLOAD Sold as pair, bare ready for assembly. Uses 11/32" x +.250" length Intake valves & 11/32" x stock length exhaust valves. Download Installation Tech here - DOWNLOAD
Big Block Chevrolet 490 ci Dyno Pull 716HP!
Optional Parts
  • Intake Valves: PW 360025
    Exhaust Valves: PW 360019
    Valve Seals: PW 360480
    Rocker Studs: - PW 360372
    Stud Girdle: Harland Sharp G1114
    Guide Plates: Manley 42164-8
    Head Gaskets: (Mark IV) Fel-Pro 1017-1 or equivalent
    Head Gaskets: (Mark V & VI) Fel-Pro 1047 or equivalent
    Intake Gaskets: Fel-Pro 1252-3 or equivalent
    Exhaust Gaskets: PW419 or equivalent
    Head Bolts: (Mark IV) ARP 135-3712
    Head Studs: (Mark IV) ARP 235-4713
    Spark Plugs: Autolite 3924 or equivalent

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