Beskrivning
Kamaxel
265-455 V8
Pontiac 1955-1981
Sealed Power 400359
CMC 1805 camshaft is an aftermarket performance camshaft manufactured by
the Camshaft Machine Company (CMC). It is primarily used in
Pontiac V8 engines (ranging from 265 to 455 cubic inches) as a performance upgrade or restoration component.
Key Specifications & Identification
While exact specifications can vary by the specific “grind” version, the 1805 series typically follows these general characteristics:
Engine Application: Pontiac 1955–1981 V8 engines (265, 326, 350, 389, 400, 421, 428, 455).
Type: Often found as a Hydraulic Flat Tappet camshaft.
Manufacturer: Produced by Camshaft Machine Company (CMC), which serves as a major private-label supplier
for other brands like Melling, Howards Cams, and Edelbrock.
Common Variations
Because CMC is a primary manufacturer, this cam is often sold under different brand labels with specific part numbers:
Melling SPC-7: Often cross-referenced with the 1805 series, this “068” reproduction cam is a popular choice for street performance.
Howards Cams CL417251-15: A common performance kit that utilizes CMC-produced cores.
Edelbrock Factory Muscle: Similar grinds are sold for “Stock” or “Muscle” restoration categories.
Performance Characteristics
The 1805 series is generally categorized as a Performance Level 2 to 3 cam (Street Performance):
Power Band: Typically operates in the 1,800 to 5,400 RPM range.
Idle: Usually produces a “noticable” or “lopey” idle, suitable for street-driven muscle cars.
Requirements: Often requires headers, a dual exhaust system, and a performance intake manifold for optimal results.
