MP 509 cam

ronw said

I have a new MP 509 Hyd fat tappet cam, I'm thinking of putting in my sons 340 but he asked if there would be an advantage to using the same type cam in a roller. The car is a 68 GTS Dart 4 speed car and will see very little time at the track. Is the added expense worth the money? Ron

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hi. ok, with a solid roller, you will need longer valves, for extra lift, the heads will have to be reworked for air flow at the new lift.
piston valve clearance will be an issue. it's a lot of expense and work. for a stock street motor, naw. nothing is free or cheap about rollers. a good flat tappet cam will do just fine. very low maintenance and expense. 7000 rpm does you nothing on street, you will be running at lower RPM,s.