The 26918-16 springs will clear up to .525 lift if matched with the 787-16 retainers and 623-16 locks. These combined parts do not require machine work to the heads, and the springs should fit in your stock spring pockets.
Spring O.D: Top 1.075" / Bottom 1.310"
Spring I.D: Top .650" / Bottom .885"
Seat Load: 125 @ 1.800"
Open Load: 367 @ 1.150"
Coil Bind: 1.100"
Rate (LBS/In): 372 lbs
Max Lift: .625"
This Beehive™ Valve Spring Kit for LS engines is designed for hydraulic roller cams and includes carefully matched Beehive™ Springs, titanium retainers, locks, seals and spring seats. With a .625" maximum lift, these Beehive™ Valve Springs deliver increased valve train stability and a much lighter valve train. This is achieved with less spring pressure for better valve control and reduced weight of both the spring and retainer. The unique Beehive™ shape handles valve train stress more efficiently to eliminate damaging harmonics and increases high RPM horsepower and durability. The oval/multi-arc wire shape places the maximum area of the wire at the point of highest stress to handle valve train stress more efficiently and allow better heat dissipation for longer life.
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