Don't know for sure what the figure was - that's what I pay the machinst for. Sorry. These are 93 stock GT-40 lightning heads, stock 93 valves. Came as Ford reman heads, milled by the previous owner to 61 cc but not installed. The only other mod was having them put on dual springs - and I let the shop pick the springs.



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1967 Falcon 4 door w/351C - Owner built, owner abused.
70 Mustang 302 / 02 Mustang V6 rag top, 04 SuperCrew parts hauler
http://raceabilene.com/kelly/hotrod

<font size=-1>[ This Message was edited by: ckelly on 12/24/05 11:47am ]</font>