Cylinder Head - RR BB-O - Assembled - 2.250 / 1.880 in Valves - 270 cc Intake - 119 cc Chamber - 1.550 in Springs - Aluminum - Big Block Chevy - Each Brand-BRODIX MPN 2061001 . **NOTE: The springs on these are set-up for a 700 lift solid roller Truck Freight NO
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