-40%
1937-1951 Buick Valve Body to Intake Manifold Block-off Plate. 320 Engines.
1937-1951 Buick Valve Body to Intake Manifold Block-off Plate. 320 Engines.

1937-1951 Buick Valve Body to Intake Manifold Block-off Plate. 320 Engines.

$ 10.29

Availability: 94 in stock
  • Other Part Number: buick cenury roadmaster limited series 60 70 80 90
  • Returns Accepted: Returns Accepted
  • Condition: New
  • Manufacturer Part Number: n/a
  • Restocking Fee: No
  • Refund will be given as: Money Back
  • Interchange Part Number: 1937 37 1938 38 1939 39 1940 40 1941 41
  • Return shipping will be paid by: Buyer
  • Item must be returned within: 30 Days

    Description

    1937-1951 Buick
    Valve Body to Intake
    Manifold Block-off Plate
    Fits All 320 Engines - Century, Roadmaster, Limited
    Solid
    Copper
    Originally, Buick incorporated a “butterfly” or “flapper” in its exhaust manifold valve bodies. Its purpose was to quickly heat the fuel mixture in the motor, particularly in cold weather. The butterfly valve is normally closed when the engine is cold. In its closed position, exhaust gas would be directed into the intake manifold, heating the fuel mixture and the surrounding area. As the engine and valve body warms, a heat sensitive spring on the side of the valve body would allow the butterfly to open, directing exhaust gas into the exhaust pipe and exiting the vehicle. The valve required regular maintenance as it often seized. If it happened to seize in the closed position, the exhaust gas would continue to heat the fuel mixture and the intake manifold, often causing poor performance, vapor lock and engine damage. Many a Buick restorer remembers having had to “hammer” the valve back and forth to get it to temporarily function.
    Because our cars are now used primarily for warm weather use and the need for quicker “warm ups” is not necessary, we eliminated the butterfly on the valve bodies we sell (see listing #
    184948458773)
    .
    We also eliminated the need for continual maintenance, poor performance and the possibility of engine damage due to a stuck valve. Following this logic, we have produced this copper block-off plate. It closes the path of exhaust gases into the intake manifold and diverts exhaust gases directly out the
    exhaust
    pipe. The end result is a cooler intake manifold chamber where air/fuel mixtures prepare to burn. This can be
    especially
    useful where highly
    volatile
    ethan
    ol-blended
    fuels are used and/or vapor lock occurs.
    See our other listings for Buick Manifolds, Parts & Kits
    A Quality Reproduction By
    CARS
    We Carry a Comprehensive Line of Buick Parts from 1935-1987
    Serving the Buick Hobby Since 1973
    We Ship Worldwide - In Stock Same Day Shipping
    CARS LLC
    oldbuickparts
    205 Pearl Street
    Neshanic Station, NJ 08853
    Froo www.froo.com | Froo Cross Sell, Free Cross Sell, Cross promote, eBay Marketing, eBay listing Apps, eBay Apps, eBay Application