Thread: Broke Comp Cam promagmun rocker

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urban worked at wheel to wheel ? why they hit back were. i think it,s whined up when the engine RPM fee wheel then when the prop lands back it the water. blower engine it alot harder on the crank. blower on one end prop on the other.i have no proof but talked about this with other engine builders . as for crane stuff there rockers and wide bodys they made for merc are good and they made all the copper coated roller cams core .when they closed down there others now that build better core like JC cores . for springs on race stuff it.s pac. psi .isky . i have my customs grinds done by Erson or Horwards .and use moral lifters