Aeroflow Bbc Heads 1 X Valve Dual Spring

replacement valve spring.

dual valve spring with damper to suit Aeroflow performance 320cc chevy big block cylinderheads.

will handle up to0. 850" maximum lift. To suit aggresive hyd roller and solid roller camshafts.

outside diameter of outer spring - 1. 625".

inside diameter of outer spring - 0. 880".

installed height - 2. 08".

seat pressure at installed height -275 lbs.

maximum lift - 0. 850".