Engine Kits

SB Chevy Xtreme Energy Retro-Fit Hyd. Roller Camshaft
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SB Chevy Xtreme Energy Retro-Fit Hyd. Roller Camshaft



Part #: 12-422-8
List Price: $586.88
Our Price: $293.44
You Save: $293.44



S.B. Chevy Extreme Energy Retro-Fit Hyd. Roller Camshaft #12-422-8. HYDRAULIC ROLLER: High performance application.
Largest with stock converter, noticeable idle.

Advertised Duration

Duration @ 0.050

Valve Lift
W/1.5 Rocker

Lobe Sep.
Angle

RPM
Operating
Range

Int.

Exh.

Int.

Exh.

Int.

Exh.

 

 

270

276

218

224

.495

.502

110º

1600- 5400

 

Advertised Duration 270 int./276 exh.
Advertised Exhaust Duration 276
Advertised Intake Duration 270
Basic Operating RPM Range 1,600-5,400
Brand COMP Cams
Cam Style Hydraulic roller tappet
Computer-Controlled Compatible No
Duration at 050 inch Lift 218 int./224 exh.
Exhaust Duration at 050 inch Lift 224
Exhaust Valve Lash 0.000 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.502 in.
Grind Number CS XR270HR-10
Intake Duration at 050 inch Lift 218
Intake Valve Lash 0.000 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.495 in.
Lobe Separation (degrees) 110
Notes Requires thrust button and wear plate.
Notes Retro-fit: Designed for early non-roller blocks. Requires thrust button and wear plate.
Part Type Camshafts
Product Line COMP Cams Xtreme Energy Retro-Fit Camshafts
Quantity Sold individually.
Valve Lift with Factory Rocker Arm Ratio 0.495 int./0.502 exh. lift

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