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Holley Aluminum Cylinder Heads 300-575

Holley 300-575 - Holley Aluminum Cylinder Heads

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Cylinder Heads, Aluminum, Assembled, 63cc Chamber, 165cc Intake Runner, Ford, 289, 302, 351W, Pair

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Holley Aluminum Cylinder Heads

Part Type: Cylinder Heads
Brand: Holley
Manufacturer's Part Number: 300-575
Part Type: Cylinder Heads
Product Line: Holley Aluminum Cylinder Heads
Summit Racing Part Number: HLY-300-575

UPC: 090127482759
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 63
CNC-Machined Combustion Chamber: No
Intake Runner Volume (cc): 165cc
Exhaust Runner Volume (cc): 71cc
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Intake Port Location: Standard
Exhaust Port Shape: Square
Exhaust Port Location: Standard
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.020 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.600 in.
Outside Diameter of Outer Spring (in): 1.437 in.
Damper Spring Included: No
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Steel
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: Umbrella
Rocker Arm Studs Included: Yes
Rocker Arm Nut Thread Size: 3/8-24 in.
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: Yes
Guideplate Pushrod Size: 5/16 in.
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 17
Exhaust Valve Angle: 17
Valve Guides Included: Yes
Valve Guide Material: Bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 3-angle
Valve Seat Material: Steel
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: Yes
Quantity: Sold as a pair.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

These Holley aluminum (356-T6) cylinder heads are light in weight, but heavy on performance. The intake and exhaust runners are sized to help your engine produce optimum power. The 3-angle valves are designed to provide higher flow rates, excellent response, and superior intake and exhaust flow. The combustion chambers are Pro-E engineered to deliver the best combination of torque and horsepower, and heavy-duty valve springs ensure high-rpm reliability and performance.

Warranty

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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