Engine Kits

Chevy 262-400 Thumpr™ Retro-Fit Hydraulic Roller Camshaft
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Chevy 262-400 Thumpr™ Retro-Fit Hydraulic Roller Camshaft



Part #: 12-600-8
List Price: $587.98
Our Price: $293.99
You Save: $293.99

Availability: In Stock



Chevy SB .511 lift, Thumpr™ Retro-Fit Hydraulic Roller Camshaft high performance street, stock converter is ok but best with a 2000+ stall with 3.73 or lower gears with choppy idle.

RPM

Duration

Valve Lift

Lobe

Operating

Advertised

@ .050

@ 1.5:1

Sep.

Range

IN.

EX.

IN.

EX.

IN.

EX.

Angle

1900-5600

283

303

227

241

.511

.497

107°

;

Advertised Duration 283 int./303 exh.
Advertised Exhaust Duration 303
Advertised Intake Duration 283
Basic Operating RPM Range 1,900-5,600
Brand COMP Cams
Cam Style Hydraulic roller tappet
Computer-Controlled Compatible No
Duration at 050 inch Lift 227 int./241 exh.
Exhaust Duration at 050 inch Lift 241
Exhaust Valve Lash 0.000 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.497 in.
Grind Number 283THR7
Intake Duration at 050 inch Lift 227
Intake Valve Lash 0.000 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.511 in.
Lobe Separation (degrees) 107
Notes Designed for engines originally equipped with flat tappet camshaft.
Part Type Camshafts
Product Line COMP Cams Thumpr Retro-Fit Hydraulic Roller Camshafts
Quantity Sold individually.
Valve Lift with Factory Rocker Arm Ratio 0.511 int./0.497 exh. lift