EDELBROCK BBC ALUMINUM HEADS (YOUR CHOICE OVAL OR RECT PORT)

Description: PURCHASER TO RECEIVE: Custom built Edelbrock aluminum heads for BBC in your choice of rectangular or oval port. Also, you may choose spring set up for flat tappet or hyd roller cam upto .650 lift. Can also build for higher lift .650-.850" lift and solid roller for an upgrade. To be assembled by a 20+ year experienced engine builder and set up for your exact camshaft. I can also sell you a custom grind camshaft designed in lift, duration, LSA, and centerline specifically for your engine, car, and intended use. Camshaft would be additional charge over buy it now price. Time will be needed to order in bare head castings from Edelbrock in CA, and then custom build. IMPORTANT: Price is per head, assembled with Eldelbrock stainless valves, new Howards valve spring and retainer kit, VTO seals, and locks. Rocker studs and guide plates are additional. Head build specs: New Eldelbrock Aluminum Heads for BBC (Your choice oval or rectangular port). New Howards valve spring and retainer kit. Reconditoned/ Refurbished Eldelbrock stainless 2.190/1.880 valves Edelbrock 60559 Details Performer RPM Aluminum Cylinder Heads - Rectangle Port Performer RPM rectangular-port heads have specially designed intake and exhaust ports for increased flow and velocity over standard big-block heads. These heads feature a highly-efficient 118cc open-style combustion chamber for maximum performance. Engineered with high-velocity 315cc long and 300cc short intake runners, they are designed for street/high-performance big-block Chevys operating from 2500-7000 rpm. The stainless steel, hardened tip 2.19'' intake and 1.88'' exhaust valves have smaller-than-stock 11/32'' valve stems to promote excellent flow and lighter valve weight. The deck surface and water jackets were specially designed to work with all big-block Chevrolet engine blocks. Heads include top-quality ARP rocker studs, bronze guides and hardened, ductile iron valve seats. Tech Note: The Spark plug is closer to center of bore, for use with flat top or low dome pistons and will interfere with high-dome pistons for open chamber heads. If a high compression domed piston is to be used, purchase a piston designed for use with this Edelbrock cylinder head. Tech Tip: To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs such as the RC12YC. They are 0.230'' shorter than a conventional spark plug and have a 5/8'' hex for easier access. Designed for street/high-performance big-blocks operating from 2500-7000 rpm Specially designed ports for increased flow and velocity over standard big-block heads Highly-efficient 118cc open-style combustion chamber High-velocity 315cc long/300cc short intake ports Smaller-than-stock 11/32" valve stems promote excellent flow and lighter valve weight Combustion Chamber Volume:118cc Intake Runner Volume:315cc Exhaust Runner Volume:110cc Intake Valve Diameter:2.19'' Exhaust Valve Diameter:1.88'' Valve Stem Diameter:11/32'' Valve Guides:Manganese Bronze Deck Thickness:9/16'' Valve Spring Diameter:1.55'' Valve Spring Maximum Lift:0.700'' Rocker Stud:7/16'' Guideplate:Hardened Steel Pushrod Diameter:3/8'' Valve Angle:26° Exhaust Port Location:Stock Spark Plug Fitment:14mm x 3/4'' Reach, Gasket Seat Valve LiftIntakeExhaust .100''7670 .200''146132 .300''212156 .400''255181 .500''294207 .600''314228 .700''N/AN/A Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O Edelbrock 60449 Details Performer RPM Aluminum Cylinder Heads - Oval Port Designed for big-block Chevy 396-502 c.i.d. engines, these oval port heads will support over 540 horsepower with 9.5:1 compression when used as part of the Performer RPM Power Package. A totally unique intake port design yields flow numbers traditionally associated with high performance rectangular port heads, but with the smaller runner size and velocity of an oval port for excellent seat-of-the-pants performance and crisp throttle response. The semi-open chamber design maximizes combustion efficiency with streetable compression ratios. The stainless steel 2.19'' intake and 1.88'' exhaust valves have smaller-than-stock 11/32'' valve stems to promote excellent flow and lighter valve weight. The deck surface and water jackets were specially designed to work with all big-block Chevrolet engine blocks. Heads include top-quality ARP rocker studs, bronze guides and hardened, ductile iron valve seats. Tech Tip: To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs such as the RC12YC (P/N 192-49776). They are 0.230'' shorter than a conventional spark plug and have a 5/8'' hex for easier access. Valve LiftIntakeExhaust .100''7471 .200''143128 .300''207153 .400''250178 .500''284200 .600''309218 .700''N/AN/A Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O WARNING: This product can expose you to chemicals which is/are known to the State of California to cause cancer and/or reproductive harm.

Price: 2978 USD

Location: USA

End Time: 2025-01-02T23:02:49.000Z

Shipping Cost: 75 USD