90290A PWHeads 286cc Oval Port Aluminum Cylinder Heads Pair (complete for hydraulic roller camshafts). Fits BB Chevrolet 427-454
Performance World 90290A PWHeads 286cc Oval Port Aluminum Cylinder Heads Pair (complete for hydraulic roller camshafts). Fits BB Chevrolet 427-454
 
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BB Chevrolet 286cc Aluminum Cylinder Heads. 2.25" intake, 1.88" exhaust. 112cc combustion chambers. Oval port design. These heads flow 331cfm/256cfm at .600"! Dyno tested! These heads produced a 50HP gain over the desired "049" Big Block castings - just a straight bolt on swap! Gains will be even higher on the more common factory heads! Manufactured from A356-T6 aluminum. Each pair comes complete with an assembly blueprint and detailed flow sheet. Set up for hydraulic roller applications up to .600" lift. Vacuum tested. Download Data here - DOWNLOAD Sold per pair, ready for installation.
Everyday Low Price: CDN $3,379.99

Stock Status:In Stock

Product Code: 90290A
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Description Technical Specs Replacement Parts
 
BB Chevrolet 286cc Aluminum Cylinder Heads. 2.25" intake, 1.88" exhaust. 112cc combustion chambers. Oval port design. These heads flow 331cfm/256cfm at .600"! Dyno tested! These heads produced a 50HP gain over the desired "049" Big Block castings - just a straight bolt on swap! Gains will be even higher on the more common factory heads! Manufactured from A356-T6 aluminum. Each pair comes complete with an assembly blueprint and detailed flow sheet. Set up for hydraulic roller applications up to .600" lift. Vacuum tested. Download Data here - DOWNLOAD Sold per pair, ready for installation.
Optional Parts
  • Stud Girdle: Harland Sharp G1114
    Head Gaskets: (Mark IV) Fel-Pro 1017-1 or equivalent
    Head Gaskets: (Mark V & VI) Fel-Pro 1047 or equivalent
    Intake Gaskets: Fel-Pro 1210 or equivalent
    Exhaust Gaskets: PW419 or equivalent
    Head Bolts: (Mark IV) ARP 135-3610/135-3712
    Head Studs: (Mark IV) ARP 235-4713 or 235-4018
    Spark Plugs: Autolite 3924 or equivalent

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