2004 GMC Envoy XL Performance Engines

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

Similar in performance to the Holeshot series, the Tork Master is B&M’s lowest cost torque converter. The Tork Master is an excellent all-around performance street converter. The best ‘value priced’ street converters available.

Product Features:

• New Precision Pump Drive Tube
• Pressure Tested
• Fully Balanced
• Needle Thrust Bearing
• New Thrust Washer

HoleShot 2400 for GM 1993 to 1996 TH700R4 (30 spline) and 1984 to 1993 4L60E (30 spline) Application: HoleShot 2400 for GM 1993 to 1996 TH700R4 (30 spline) and 1984 to 1993 4L60E (30 spline) A higher than stock stall speed as delivered by the Holeshot converter will provide several advantages and benefits in vehicles with modified engines. Many modifications, particularly big cams, tend to reduce low end power and torque. The high stall converter allows the engine to launch the car at higher rpm where more torque is available. The Holeshot is generally a very good choice for the typical street machine that is looking for better launch capability and more strength. Street rods with modified engines will also benefit from a Holeshot converter. If your vehicle is equipped with a plate type nitrous system, you will need a Nitrous Holeshot!! Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Furnace brazed impeller. New precision steel alloy pump drive tube. New heavy duty needle bearing between stator and impeller (not a thrust washer). Needle bearing between stator and turbine. Furnace brazed turbine. Dual pattern drive lugs on some GM Holeshots. New turbine hub. New springs and rollers in stator.

Product Features:

• Furnace Brazed Impeller
• Steel Alloy Pump Drive Tube
• Heavy Duty Needle Bearing
• Between Stator and Turbine
• Furnace Brazed Turbine
• New Turbine Hub
• New Springs/Rollers In Stator

The Holeshot Converter is a very good choice for the typical street machine that is looking for better launch capability and more strength. With a furnace brazed turbine, new turbine hub and dual pattern drive lugs on some GM Holeshots.

Product Features:

• Furnace Brazed Impeller
• Steel Alloy Pump Drive Tube
• Heavy Duty Needle Bearing
• Between Stator and Turbine
• Furnace Brazed Turbine

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

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.

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.

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 open at 160 degrees every time, regardless of engine rpm, and it’s high-flow design and brass and copper construction eliminate the damaging effects of cycling when you’re stuck in stop-and-go traffic. It includes the rubber gasket and has a pressure relief valve.

Product Features:

• Opens sooner than stock at 160 degrees
• High flow design for performance applications
• Includes rubber o-ring seal/gasket
• Incorporates pressure relief valve