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
4150 Single Plane Intake for Oldsmobile 400, 425 & 455
A single-plane intake manifold for Oldsmobile big-block V8s: the 400, 425 and 455. Built for high-RPM performance, with a power band of 4,500 to 7,500 RPM, for strip and serious street/strip Olds engines.
- Single-plane design, 5.25 in. height
- 4150-style square-bore 4-barrel carburetor flange
- Operating range: 4,500–7,500 RPM
Before you order:
- For standard-deck Olds 400 / 425 / 455 engines. Not for tall-deck applications.
- Made for high RPM. For a street or towing engine, the 7551 Air-Gap dual plane gives more low-end torque.
- Check hood clearance before installing.
Engine Fitment
- Oldsmobile 400 (6.6L)
- Oldsmobile 425 (7.0L)
- Oldsmobile 455 (7.5L)
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 an Olds 350?
No. The Olds small block (307, 330, 350, 403) uses a different intake; see our 7111.
Not sure it fits?
Email haytalras@gmail.com with your vehicle and engine and we'll confirm before you order.
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
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