Xtreme Energy XR300HR (Hydraulic) Cam,Lifters '58-'02 Chevy Small Block

Includes Cam & Lifters

" For Retro-Fit (Link Bar) Hydraulic Roller Lifters; Fits '58-'021 262-400 cid Chevy Small Blocks2.

" Pro Street/bracket racing

" 10:1 compression, 3500+ stall, good intake, headers

" Very rough idle.

" Xtreme Energy" cams are designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine vacuum and enhances throttle response. Special intake closing ramps close the valve sooner, providing more cylinder pressure and torque without resulting in excessive valve train noise. Faster ramps achieve maximum velocity sooner, increasing the area under the lift curve and providing maximum horsepower. Smoother exhaust designs allow for a more effective purge of spent gasses from the combustion chamber to further increase horsepower. Feature CRC (Constant Radius of Curvature) technology that ensures durability with aggressive hydraulic roller designs.

Specifications

Lifter Type: Retro-Fit Hydraulic Roller

Engine Family: Chevrolet 262-400 c.i. 8 cyl. 1958-1998

Description: Pro Street/Bracket Racing,10:1 CR, 3500+ stall,good intake,headers;Rough idle.

Cam Family: Xtreme Energy

RPM Range: 3200 to 6200

Valve Timing: 0.006

Lobe Separation: 110°

Intake Centerline: 106°

Valve Lash: Hyd.(Intake)/ Hyd.(Exhaust)

Duration: 300(Intake)/ 306(Exhaust)

Duration @ .050" Lift: 248(Intake)/ 254(Exhaust)

Valve Lift: 0.562(Intake)/ 0.58(Exhaust)

Lobe Lift: 0.375(Intake)/ 0.387(Exhaust)

Vehicle Fitments: