R-Series Tunnel Wedge Intake Manifold for Ford 390·428
Trick Flow's take on the classic Tunnel Wedge intake manifold brings old school looks, modern performance, and advanced
manufacturing together in one package! Since part of the original Tunnel Wedge's cool factor was its appearance, Trick Flow took special care to match the original intakes appearance and carburetor locations. On the inside though, Trick Flow overhauled the port design for more airflow and incorporated an 0-ring sealed bottom plate. Cast in premium grade A319 aluminum. the manifold is topped with 4150-/4160-style square bore carb flanges.
Emissions Warning
Products sold on this website may not be legal for use on public roads or highways due to Environmental Protection Agency (EPA) restrictions or California Air Resources Board (CARB) emissions regulations. Federal and State regulations may restrict Product installation to pre-emissions regulation (Model Year 1974 or earlier) or to competition/racing vehicles used exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and3) practice associated with events.
Installation of such products, including driving racing vehicles to and from the track, may be considered illegal “tampering ” or as “defeat device”, and may result in federal and state penalties. It is the purchaser’s responsibility to ensure compliance with all applicable emissions laws, including California’s stricter standards.
Proposition 65 Warning:
This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
- Engine Block Style:
- Stock/OEM standard deck
- Style:
- Single plane
- Basic Operating RPM Range:
- 4,000-7,500
- Material:
- Aluminum
- Finish:
- Natural
- Height:
- 6.600 in.
- Intake Section Included:
- Complete
- Carburetor Mount:
- Dual 4-barrel square bore
- Has Bosses:
- No
- Bosses Machined:
- No
- Boss Quantity:
- N/A
- EGR:
- No
- Quantity:
- Sold individually.
- Notes:
- Includes O-ring sealed bottom plate, (14) socket head cap screws, (2) button head cap screws, locking wire, and (1) hose fitting, Breather cover plate, optional freeze plug. This medium rise manifold is designed to use the original style Ford FE dual
- Make:
- Ford
- Engine Family:
- Ford big block FE
- Engine Sizes:
- 6.4L/390- 7.0L/428
- Years:
- 1961-1977
- Cylinder Head Style:
- Stock configuration