[QUOTE=NorCam;1532725]Been there...done that. The problem with DHC heads is that they will not accommodate the large diameter 1.550 springs needed for this roller cam. The top guy at Trick Flow (forgot his name) warned me not to try and cut them. Max spring pocket on the Trick Flows is 1.470 and they are best suited to hydraulic roller cams or smaller solid lifter cams.
FWIW. - 186 heads can not be safely machined for 1.550 springs either, the end spring pockets are prone to hit water, you can step cut them with a .060 stock diameter shim in place and then use .100 long valves, but this may mess up the rocker geometry.
Plus you will probably lose 40+ HP.
Maybe you could find a Orphan Tarantula Intake manifold ( or period correct ) and have the tops of the intake runners Tig Welded up/ground down, to work with your current heads?.
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01-20-2021, 05:34 PM
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