AFR Heads
Even though the springs are listed as Melling on AFR's website, I found another vendor (LS oriented, of course!) that lists them as a PAC made spring. I would like to know the diameter of the valve pockets and if 1.550 springs would be an option or they could be enlarged safely to fit. Here are the spring spec's.
AFR Replacement Valve Springs - (Springs Only)
These PAC racing/AFR 8017 valve springs are a direct replacement for Air Flow Research heads using the standard small diameter dual spring as well as a variety of other aftermarket cylinder heads and engine types. These small diameter, LS style dual valve springs can be used for most hydraulic or solid flat tappet camshaft applications. Whether you're working on a Ford, Chevrolet or Mopar, we have the AFR replacement valve spring that you need.
SOLD IN SET OF 16 ONLY
VALVE SPRING SPECS:
- Outer O.D. 1.290"
- Inner I.D. 0.685"
- Max lift: 0.600" *
- Seat Load: 140# at 1.810"
- Open Load: 356# at 1.210"
- Rate: 360 lb/inch
- Coil bind: 1.050"
* Must verify retainer to seal/guide clearance
PART NUMBER: AFR-8017-16