Thread: 1955 Chrysler 331 Hemi build for '34 Plymouth Coupe

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I built a 392 in the mid-70's and talked on the phone several times with Racer Brown, ordering cam, lifters, adjustable pushrods and so forth. I still have the 3/8" wrench that I heated and bent to make a tool to adjust the pushrods. One of the things he taught me was to make tubing spacers to replace the springs on the rocker tubes, leaving about 0.010" sliding clearance on each tube for temp growth. I'm just throwing this out there for your information, otherwise it will die with me. He's the same fellow who did tests in his lab that showed the rollers of the (then new) roller rocker arms skidding across the valve stem tip rather than rolling across. He said that the rollers were to small in diameter to effect a mechanical couple with the valve stem tip. You young fellows should know that it was Racer Brown who ground all the horsepower cams for Chrysler Corporation in the horsepower wars of the 60's.

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