Anyone Tried the MAST Black Label LS3 350+cfm heads for 3.900 bore engines?
01-03-2010, 09:08 PM
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Anyone Tried the MAST Black Label LS3 350+cfm heads for 3.900 bore engines? http://www.mastmotorsports.com/black...20Heads&id=102 These Look Awesome! at 2500$ a set new "Unnassembled" and flowing Serious Airflow i was wondering if anyone has any results trying these on a 383 or 346? Even with 253cc intake runners they have a great Flow to cc ratio so i don't think you'd be loosing too much down low, Man the Top end charge!
