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Offenhauser 360 Degree Dual Port Single Quad Intake Manifolds 5999DP

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Intake Manifold, Dual Port, Aluminum, Natural, Square Bore, AMC/Jeep, 199, 232, 258, L6, Each

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  • 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.

Brand: Offenhauser
Manufacturer's Part Number: 5999DP
Summit Racing Part Number: OFY-5999DP

Intake Section Included: Complete
Engine Block Style: Stock/OEM standard deck
Carburetor Quantity: One
Intake Style: Dual plane
Basic Operating RPM Range: 1,500-5,000
Intake Finish: Natural
Intake Material: Aluminum
EGR: No
Quantity: Sold individually.
Notes: Not for use with automatic transmission application.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.
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These 360 degree dual port single quad intake manifolds from Offenhauser feature completely separate runner systems for the primaries and secondaries. At low-load, the primaries feed the fuel-air charge through the smaller bottom passages at near sonic speed, improving power and efficiency. When the secondaries open, their charge goes through the bigger, cooler upper passages. Then, in turn, it is rammed into the cylinders when it encounters the high-velocity mix from the primaries. The result is better fuel economy, lower emissions, and a substantial power increase across the whole rpm range.

Warranty

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

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