lasthope05
15+ Year Contributor
- 1,144
- 267
- Mar 31, 2006
-
Philadelphia,
Pennsylvania
Picked up another shell recently with a load of free parts which included some Manley titanium retainers. With that, I'm throwing a spare budget motor back together and am looking for a set of valve springs to put in.
I could run used stock valves but figured since I already have retainers might as well get new springs(ti retainers dont fit stock springs). Both are about the same price, but not in specs. Mild cams, either Kelford 264, hks 272 or gsc s1.
I know Manley underrates their springs and BC overrates theirs, but any insightful knowledge of the two would be nice. I hear there are only a few valve spring manufactorers out there so these very might well be the same springs as the PAC/Kiggly beehives. To throw another one in. I also have a brand new set of OEM valve springs from a NOS cylinder head I purchaced.
Manley Springs
O.D. / I.D. - 1.100"/.775"
Pressures - 66 @ 1.580"
175 @ 1.210"
237 @ 1.000"
Stock/Maximum Net Lift - .370"
.580"
Coil Bind - .950"
Rate (lbs./in.) - 294
Brian Crower Springs
Spring Pressure:
Seat: 1.550" @ 84 lbs
Open: 1.000" @ 235 lbs
Coil Bind: 0.935"
I could run used stock valves but figured since I already have retainers might as well get new springs(ti retainers dont fit stock springs). Both are about the same price, but not in specs. Mild cams, either Kelford 264, hks 272 or gsc s1.
I know Manley underrates their springs and BC overrates theirs, but any insightful knowledge of the two would be nice. I hear there are only a few valve spring manufactorers out there so these very might well be the same springs as the PAC/Kiggly beehives. To throw another one in. I also have a brand new set of OEM valve springs from a NOS cylinder head I purchaced.
Manley Springs
O.D. / I.D. - 1.100"/.775"
Pressures - 66 @ 1.580"
175 @ 1.210"
237 @ 1.000"
Stock/Maximum Net Lift - .370"
.580"
Coil Bind - .950"
Rate (lbs./in.) - 294
Brian Crower Springs
Spring Pressure:
Seat: 1.550" @ 84 lbs
Open: 1.000" @ 235 lbs
Coil Bind: 0.935"