Olds 307-403
Designed for 330-350-403 c.i.d. Oldsmobiles and 1980-1/2 to 1985 307-inch engines with 5A heads (casting #3317). The Performer RPM Olds manifold is a high-rise, dual-plane design with 180° firing order engineered for maximum top-end horsepower while maintaining throttle response.
Installation Notes:Power Package includes matching:
Cam Specs:
Operating Range | 1500-6500 RPM |
Duration Advertised | 290° Intake/300° Exhaust |
Duration @ .050'' | 224° Intake/234° Exhaust |
Lift @ Valve | .496'' Intake/.520'' Exhaust |
Lift @ Cam | .310'' Intake/.325'' Exhaust |
Lobe Separation Angle | 112° |
Intake Centerline | 107° |
Intake Timing @ .050" | Open 5° BTDC Close 39° ABDC |
Exhaust Timing @ .050" | Open 54° BBDC Close 0° ATDC |
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Specifications:
Is valve clearance an issue on a stock engine with this cam?
will this work on a 350 bored .30 over
Will this fit on a 1972 Olds 350 ?
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.