Mast 305cc LS7 Heads, Pair

This listing is for a pair of refreshed Mast 305cc LS7 heads with dyno time only.

Mast 305cc LS7 heads, Pair

-CHE Bronze Guides

-CHE B5 Copper Intake & Exhaust Seats

-Xceldyne 2.250" Titanium Intake Valves w/ Moly Coated Stems

-Ferrea 1.600" Super Alloy Inconel Exhaust Valves

-PAC 1222X Valve Springs

-PAC R455 Titanium Retainers

-.041 Wire O-ring 

-68cc Chamber Volume

-Currently set up for hydraulic roller <.700 Lift

Over $8000 Retail cost!