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Jeff Chambers · 04-28-2002, 12:34 PM

One of the best spring packages I've found for the SBF head is the Comp Cams 986-16 double spring set. Its a double spring with damper that provides 125# on the seat and around 300# at .500" lift. It'll definitely keep the valves from floating up past 6400rpm. Because they're a double spring, you have to use a smaller teflon valve stem seal and its really recommended to use a hardened shim/cup. I've got a brand new set for sale on my website (still shrink wrapped) and I've also got a used set that have about 60 passes on them. I make a habit of changing springs at least twice a season.

04-28-2002, 12:34 PM	#2
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	One of the best spring packages I've found for the SBF head is the Comp Cams 986-16 double spring set. Its a double spring with damper that provides 125# on the seat and around 300# at .500" lift. It'll definitely keep the valves from floating up past 6400rpm. Because they're a double spring, you have to use a smaller teflon valve stem seal and its really recommended to use a hardened shim/cup. I've got a brand new set for sale on my website (still shrink wrapped) and I've also got a used set that have about 60 passes on them. I make a habit of changing springs at least twice a season. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"