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  2. Distributor - Wikipedia

    en.wikipedia.org/wiki/Distributor

    Older distributor designs used a cam on the distributor shaft that operates the contact breaker (also called points). Opening the points causes a high induction voltage in the ignition coil. [ 1 ] This design was superseded by an electronically controlled ignition coil with a sensor (usually Hall effect or optical) to control the timing of the ...

  3. Chevrolet small-block engine (first- and second-generation)

    en.wikipedia.org/wiki/Chevrolet_small-block...

    The coil-in-cap HEI distributor was retired, and an all-new electronic distributor design was used. The intake manifold to head bolt pattern was redesigned to improve gasket integrity—four of the center intake manifold bolts were drilled at 72° instead of 90° for the cast iron cylinder heads. Changes to the valve covers were also made.

  4. Pontiac straight-8 engine - Wikipedia

    en.wikipedia.org/wiki/Pontiac_Straight-8_engine

    From 1952 to 1954 two compression ratios were specified, 6.8:1 with synchromesh (manual) transmission, and 7.7:1 with Hydramatic automatic transmission. [4] The engine had a remarkably low idle speed of 450 rpm with standard transmission and 375 rpm (while in drive) for the automatic; [ 5 ] a modern engine is usually tuned to a minimum 600-700 rpm.

  5. High energy ignition - Wikipedia

    en.wikipedia.org/wiki/High_energy_ignition

    High energy ignition, also known as H.E.I., is an electronic ignition system designed by the Delco-Remy Division of General Motors. It was used on all GM vehicles, at least in the North American market, from 1975 through the mid-1980s.

  6. List of GM transmissions - Wikipedia

    en.wikipedia.org/wiki/List_of_GM_transmissions

    Muncie SM420 transmission — 4-speed manual used up to 1967, very similar to sm 465 except small changes to gear ratios and location of reverse. New Process Gear NP435 - 4-speed longitudinal transmission used in a select handful of 67-72 GM pickups

  7. The Best $100 You Can Spend on Your Car’s Maintenance in 2025

    www.aol.com/m-mechanic-best-100-spend-130011428.html

    You take your vitamins, eat well, exercise and wash your hands to prevent getting sick and going to the doctor’s office. Guess what? You should take the same preventative steps with your car.

  8. Chevrolet Turbo-Air 6 engine - Wikipedia

    en.wikipedia.org/wiki/Chevrolet_Turbo-Air_6_engine

    The Turbo-Air 6 is a flat-six engine that is primarily air-cooled. The engine's major components include an aluminum crankcase, two three-cylinder aluminum cylinder heads with integral intake manifolds, and six individual iron cylinder barrels.

  9. Pontiac V8 engine - Wikipedia

    en.wikipedia.org/wiki/Pontiac_V8_engine

    There are no manual transmission equipped Trans Ams that came factory with the standard L78 400 motor in 1977–79. The W72 Performance Package also included an upgrade to the rear differential ratio, setting the rear gear ratio to 3.23 for all 1977 and 1979 W72 Firebirds, with the exception being 3.42 for 4-speed equipped W72 Firebirds in 1978 ...