351c Ford X-Celerator

The WEIAND 351c Ford X-Celerator intake manifold is a single-plane, aluminum performance component engineered for 351 Cleveland and modified 2-valve head applications. Built on WEIAND's proven intake design philosophy, the X-Celerator delivers optimized runner geometry and port velocity characteristics that translate to measurable gains across the mid-range to upper RPM band where street and strip engines operate.

This square-bore manifold features aluminum construction with a natural finish, weighing 19.4 lbs and measuring 14.3 x 7.1 x 22.3 inches. Single-plane design consolidates runner paths into a unified plenum, reducing low-speed signal noise while promoting combustion charge stratification across the cylinder bank. The natural aluminum finish permits custom coating or anodizing to match engine bay aesthetics or thermal requirements. Manifold compatibility is specific to 351 Cleveland mills and non-original 2V head conversions; verify your cylinder head casting and intake port configuration before purchase to ensure proper seal and flow characteristics.

Engine builders and performance enthusiasts restoring or upgrading vintage Ford 351C platforms rely on the X-Celerator to achieve intake velocity gains without sacrificing cross-scavenging benefits of single-plane design. Common installations include street performance builds, weekend bracket racing programs, and engine swaps where factory iron manifolds introduce excessive weight and restrictive flow. Proper gasket selection, torque sequencing, and coolant bypass configuration are critical to longevity and leak-free operation.

WEIAND manifolds are sourced components in the Ford performance aftermarket, occupying a middle-ground position between budget casting suppliers and fully ported custom manifold houses. This SKU (WEI7516) is the standard production configuration; finish, gasket materials, and mounting hardware may vary by production run and should be confirmed with the vendor before installation begins.