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valvetrain

  1. valve springs interfere with head stud washers

    Engine
    Haven't had the chance to contact ARP or AFR to hear their take on the issue as they're not open weekends, so I was wondering if anyone else has had this problem? I got AFR 1050 heads (1.55" OD springs) and ARP 234-4301 sbc Head Stud Kit (which is the recommended kit by AFR). I get all the studs...
  2. New roller rockers...do they need to break in?

    Hotrodding Basics
    I just got some brand new full roller rockers from Howards Cams (Part 90084) and I am not sure if they are OK or need some break in time? Most of the tips all roll really easily and smoothly by finger pressure, but the tips on 3 of them don't seem right to me, they are stiff and gritty. Is this...
  3. adjusting valves?

    Hotrodding Basics
    Hey!! I have a 88 GMC 1500 4x4 I've just recently had the heads an all the gaskets replaced but the guy said the valves still need adjusted a little more so I'm trying to figure out how exactly I would go about it?? I've been told to start it w/ the valve covers off an the truck running but not...
  4. 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...
  5. 1977 Chevy K20: Engine Suffers from Hesitation/Power Loss When In Drive

    Hotrodding Basics
    Hi All, I have a 1977 Chevy truck with a stock crate 350 engine and a 3-speed auto transmission. It seems to be suffering from power loss when in Drive. I drove the truck yesterday to move for the street sweeper and it gave no trouble. This morning, the truck started up just fine, but when...
  6. 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...
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