Free US Shipping·Ships in 24 Hours from CA & GA·30-Day Free Returns·1-Year Warranty
- Free shipping, ships within 24 hours from our California & Georgia warehouses
- 30-day free returns, we pay return shipping
- 1-year warranty on casting defects
- Made in our own factory, leak-tested and inspected before it ships
5026 Air-Gap Dual Plane Intake for Mopar 318, 340 & 360 (LA / Magnum)
An Air-Gap, dual-plane intake manifold for Chrysler small-block V8s: the LA 318, 340 and 360, and the Magnum 5.2L and 5.9L. The open space under the runners keeps them away from lifter-valley heat, so the air/fuel charge stays cooler and denser for more power. The runners move the power band about 1,000 RPM higher than a standard low-rise dual plane: 1,500 to 6,500 RPM.
- Air-Gap dual-plane design, 5.50 in. height
- 4150-style square-bore 4-barrel carburetor flange
- Operating range: 1,500–6,500 RPM
- Available in Satin, Black and Polished
Before you order:
- Set up for 340 / 360-style cylinder heads. On early LA heads the bolt holes are about 8° off and need modification plus socket-head bolts.
- Requires a 1975-or-earlier style water neck.
- No provision for an exhaust-heated choke and no exhaust crossover.
- Will not accept the stock Thermo-Quad carburetor.
- Not for Gen III Hemi or Mopar big blocks (383, 400, 440).
Engine Fitment
- Dodge LA 318 (5.2L) 1967–1991, 340 (5.6L) 1968–1973, 360 (5.9L) 1970–1991
- Plymouth LA 318 1967–1989, 340 1968–1973, 360 1971–1983
- Chrysler LA 318 1975–1989, 360 1971–1980
- Dodge Magnum 5.2L (318) and 5.9L (360) 1992–2003
- Jeep Magnum 5.2L 1993–1998 and 5.9L 1998
See our Mopar intake page for vehicles such as the Challenger, Charger, 'Cuda and D-Series trucks. Full specifications are in the Specifications tab.
What's Included
- 1 × intake manifold
- Additional parts as shown in the product photos
Why Haytalras
- Built in our own factory. We cast and CNC-machine our intake manifolds in-house. The same factory has produced intake manifolds for Holley, TSP and Professional Products.
- Checked before it ships. Every manifold goes through air-tightness, dimensional and visual inspection.
- Ships from the US. Free shipping from our California and Georgia warehouses, out the door within 24 hours, usually delivered in 3–7 days.
- Backed by us. 30-day free returns and a 1-year warranty on casting defects.
Frequently Asked Questions
Will it fit a Jeep Grand Wagoneer 360?
No. That is an AMC 360, a different engine. See our Jeep AMC V8 intakes.
What carburetor does it take?
A square-bore 4150-style 4-barrel. The stock Thermo-Quad will not fit.
Not sure it fits?
Email haytalras@gmail.com with your engine, year and cylinder head casting numbers and we'll confirm before you order.
Download the official Haytalras installation instructions for this 5026 part. We recommend reading them and doing a test fit before final assembly.
View / Download Installation PDF
Questions during install? Email haytalras@gmail.com with your engine and part number and we'll help.
Shipping
- Orders ship within 24 hours on business days from our US warehouses in Ontario, California and Bloomingdale, Georgia.
- Most US orders arrive within 3–7 days after shipping. A tracking number is emailed as soon as your package leaves the warehouse.
- Need a part urgently? Email us and we'll check stock at the closest warehouse.
Returns
- Eligible items can be returned free of charge within 30 days of delivery.
- Please contact us at haytalras@gmail.com before sending anything back so we can set up your return.
- We recommend a test fit as soon as your package arrives, before final assembly.
Full details: Returns & Warranty
