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Thread: best cast heads for 406 sbc

  1. #1
    Junior Member SHOW GUEST
    Join Date
    Jan 2003

    best cast heads for 406 sbc

    building 406 for dirt car. we can run aftermarket cast iorn heads. what is the best head. dart,rhs or pro action.

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    Jul 2006
    Dart Platinumn 215's.

    Advanced Performance

  3. #3
    Administrator RACING JUNKIE bjuice's Avatar
    Join Date
    Apr 2003
    Greenville s.c.
    we run Cast Dart Iron Eagle Heads 215 runners on a 406 and make close to 500 hp on a small 5.20 flat tappet camshaft. 10 to 1 compression ( pump gas motor)..holley 750 carb still got the choke horn,,,we also drilled for steam holes cause we street drive it..we could easily go over 600 hp or at least 600 with a more agressive roller cam profile..

    i also had another 406 i ran some cast World heads ( dart)..mild port work 11 to 1 compression . 670 solid roller ..did some block work and ran aluminum rods and it made 620 hp...1000 cfm silver claw carb


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