
Action +Plus Intake Manifold for Ford 351M & 400M
Color:
This Weiand intake manifold is engineered to deliver strong, consistent airflow to the cylinders for Ford 351M & 400M applications, improving throttle response and power across the RPM range.
Specifications:
- Ford 351M & 400M V8
- Single Plane Design
- Cast Aluminum Construction
Action +Plus 180° low-rise, dual-plane manifolds are ideal for stock replacement yet with improved power and torque. Their effective range is off-idle through approximately 5500+ RPM, and they work well with larger cam profiles.
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Features:- Low rise, dual plane design builds maximum torque for street performance engines
- Permanent mold casting process for lighter, smoother, better looking and more consistent castings
- Dyno proven to make as much as 25hp over competitors manifold
- Square bore carburetor flange
- Utilizes late model alternator and A/C bracket mounting provisions
- Additional vacuum tap off of runner
- Will clear HEI distributors
- Exhaust crossover for improved street drivability (Standard Small Block Chevy heads)
- Fully CNC machined for a perfect fit
In addition, some of these manifolds feature Weiand's Everbright coating. Virtually maintenance-free, this polished finish is the product of vacuum metalizing technology and protective clearcoating; looks good, lasts long.
JEGS Easy Kits are designed by JEGS Professionals to assist your shopping experience. Kit includes Weiand Intake Manifold, Intake Gaskets, Intake Bolts, Carburetor Gasket, Carburetor Studs and RTV Silicone Sealer.

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