In-Store Pickup Location Close

Holley Aluminum Cylinder Heads 300-575

Holley 300-575 - Holley Aluminum Cylinder Heads

Loading media

In progress
Get Free Shipping with Your Order over $99!

Not Available

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

  • Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Would you rather pick it up? Select Location

View Similar Products

See parts for Holley

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.


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

Back To Results
Email this page Close