valve adjustment

  1. mattbaker302

    camshaft upgrade

    hey, guys so I just bought a new cam and lifters that I'm gonna install in my 71 302. I wanted to see if yall knew how much preload I should go with when I tighten the rockers down? the cam isn't anything crazy here are the specs on the flat tappet.... ?Also is this a good performance...
  2. cjstang6791

    Engine '67 Mustang 289 V8 Loose Rocker Arm Polylock Nuts Wtf?

    Trying to tune and road test my '67 Mustang 289 V8, but for some reason, the POLYLOCKS KEEP COMING LOOSE, and not always on the same cylinder or bank -- sometimes left, other times, right. I'm confident the valve adjustment procedure and pre-load and zero lash have been done correctly (performed...
  3. cjstang6791

    '67 Mustang 289 V8 Loose Rocker Arm Polylock Nuts Wtf?

    Trying to tune and road test my '67 Mustang 289 V8, but for some reason, the POLYLOCKS KEEP COMING LOOSE, and not always on the same cylinder or bank -- sometimes left, other times, right. I'm confident the valve adjustment procedure and pre-load and zero lash have been done correctly (performed...
  4. cjstang6791

    '67 Mustang 289 V8 Rocker Arm Poly Lock Nuts Keep Coming Loose. Wtf?

    Long time reader, first-time poster and I'm seeking some advice on a rocker arm nut issue. I've been working on my '67 Mustang 289 +.030 V8 with a fairly aggressive "street/strip" cam (290/228, .504 lift), Comp Cams Roller Tip "Rail Type" rockers using poly lock nuts (some type from JEGS I...
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