Chevrolet SS Performance Engines

HYDRAULIC ROLLER – XFI RPM: Great mid-range with superior top end power. Requires tuning.

Product Features:

• HYDRAULIC ROLLER – XFI RPM: Great mid-range with superior top end power. Requires tuning.
• 269/273 Advertised Duration, 216/220 Duration @ .050″, .525″/.532″ Lift, 114 Lobe Separation
• Use Beehive Valve Spring part No. 26915-16 with this camshaft

Designed to take advantage of the GM LS engine’s larger camshaft journal diameter, the XFI RPM camshaft line takes Xtreme Energy technology to deliver excellent power.

Product Features:

• Designed with Xtreme Energy technology to provide excellent power with the LS engine’s enhanced cylinder head design and high RPM potential.
• Takes advantage of the LS engine’s larger journal diameter, base circle and 1.7+ rocker arm ratio.
• Provides outstanding low RPM torque with increased stability.

Designed to take advantage of the GM LS engine’s larger camshaft journal diameter, the XFI RPM camshaft line takes Xtreme Energy technology to deliver excellent power.

Product Features:

• Designed with Xtreme Energy technology to provide excellent power with the LS engine’s enhanced cylinder head design and high RPM potential.
• Takes advantage of the LS engine’s larger journal diameter, base circle and 1.7+ rocker arm ratio.
• Provides outstanding low RPM torque with increased stability.

Designed to take advantage of the GM LS engine’s larger camshaft journal diameter, the XFI RPM camshaft line takes Xtreme Energy technology to deliver excellent power. Without sacrificing low RPM torque, these camshafts extend the RPM potential of GM LS e

Product Features:

• Designed with Xtreme Energy technology to provide excellent power with the LS engine’s enhanced cylinder head design and high RPM potential.
• Takes advantage of the LS engine’s larger journal diameter, base circle and 1.7+ rocker arm ratio.
• Provides outstanding low RPM torque with increased stability.

HYDRAULIC ROLLER – XFI XE-R: High rpm street/strip with XE-R lobe designs. Requires custom tuning.

Product Features:

• HYDRAULIC ROLLER – XFI XE-R: High rpm street/strip with XE-R lobe designs. Requires custom tuning.
• 273/279 Advertised Duration, 224/230 Duration @ .050″, .581″/.588″ Lift, 114 Lobe Separation
• Use Beehive Valve Spring part No. 26918-16 with this camshaft

This Beehive Valve Spring Kit for LS engines is designed for hydraulic roller cams and includes carefully matched Beehive Springs, steel 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.Kit Includes:26918-16 Beehive Valve Springs774-16 Steel Retainers623-16 7° Steel Valve Locks511-16 Valve Seals4705-16 Spring Seats

Product Features:

• Kit includes part #26918-16 Beehive valve springs and matching steel retainers, 7° valve locks, valve seals and spring seats
• Kits designed for hydraulic roller cams
• .625″ maximum lift springs

VALVE SPRING KIT, FOR LS 1.310″ BEEHIVE 1 KT