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  1. General Engine Question: A.I.R. Pumps - How do they work?

    Hotrodding Basics
    Hi All, I just had a few general questions regarding A.I.R. pumps that I wasn't able to find the answers to online. How exactly does a A.I.R. pump operate internally? I am working on my '77 Chevy truck (non-EGR) and have a few things removed. I see the A.I.R. pump operates off the v-belt, so...
  2. General Engine Question: Camshafts and Valvetrain

    Hotrodding Basics
    Hi All, I have been working on gaining a better understanding of how an engine breathes. Got a bit of a non-technical thought on camshafts and valve-trains and wanted to get everyone's take on it. Can a camshaft and the valve train be likened to a human respiratory system, in that the...
  3. Chevrolet 409

    Hotrodders' Lounge
    Hi All, Just have a few curiosity-driven questions about the 409, somewhat inspired by TucsonJay's post here (#316). What ever happened to the Chevy 409? Was it trumped performance-wise by the 427 or the 400? I see this engine has a few die-hard fans, but there don't seem to be very many...
  4. Camshafts: Basic Information

    Hotrodding Basics
    Hi All, I have been researching camshafts, specifically the correlation between power and emissions output. I found a very informative page online that deals with camshaft basics that I believe other members with my mechanical aptitude (very basic, couldn't pop the hood if my life depended on...
  5. Chevrolet 363 Stroker - Any Experiences?

    Engine
    Chevrolet 363 Stroker - Any Information or Experiences? Hi All, I was browsing through Craigslist and saw an ad for a crank for building a 363 stroker. Thinking there was a typo in the title, I clicked on it and it was listed again as a crank for a 363. So I did a search online and 363 stroker...
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