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Instruction Sheets for Part Number HLY-300-561
Intake Manifolds, Fuel Injected, EFI, Throttle Body Injection Style, Aluminum, Natural, Square Bore 4150 Style Mounting Flange, Chevy, Big Block, Each
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
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Overview
Brand:
Manufacturer's Part Number:
300-561
Part Type:
Product Line:
Summit Racing Part Number:
HLY-300-561
UPC:
090127716489
Cylinder Head Configuration:
Oval Port
Fuel Injection Style:
Throttle body
Basic Operating RPM Range:
3,000-7,500
Intake Section Included:
Complete
Engine Block Deck Height:
Standard deck
Injectors Included:
No
Multi-Port Fuel Rails Included:
Yes
EGR:
No
Aftermarket Fuel Rail Required:
Yes
Throttle Body Included:
No
Supplemental Bosses Cast-In:
No
Supplemental Bosses Machined:
No
Runners Included:
No
Runners Removable:
No
Plenum Material:
Aluminum
Plenum Finish:
Natural
Base Material:
Aluminum
Base Color:
Natural
Remanufactured:
No
Quantity:
Sold individually.
Notes:
With square bore 4150 style mounting flange.
Holley EFI Intake Manifolds
Holley EFI intake manifolds feature port-matched upper and lower runners for reduced restrictions. Plus, the EGR passages have been relocated to the outside of the manifold to allow for the use of larger intake ports. The result is greater air capacity, which makes these manifolds the perfect choice for supercharged engines. They're available in a variety of styles and options; select the model designed for your vehicle and/or engine application.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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