SB Ford 289 - 302ci Magnum Camshaft# 31-331-4. HYDRAULIC: Limited street use or bracket race. 11:1 compression, 4000 stall, 4:10 or lower with good intake and exhaust. Radical idle.
TYPICAL SK-KITS INCLUDE COMP Camshaft Matched Lifters Matched Double Timing Chain Set Cam Installation Lubricant Complete Installation Instructions Official Contingency Decals
Advertised Duration
Duration @ 0.050
Valve Lift W/1.5 Rocker
Lobe Sep. Angle
RPM Operating Range
Int.
Exh.
Int.
Exh.
Int.
Exh.
305
305
253
253
.540
.540
110º
3000 - 7000
Advertised Duration
305 int./305 exh.
Advertised Exhaust Duration
305
Advertised Intake Duration
305
Assembly Lubricant Included
Yes
Basic Operating RPM Range
3,000-7,000
Brand
COMP Cams
Cam Style
Hydraulic flat tappet
Computer-Controlled Compatible
No
Duration at 050 inch Lift
253 int./253 exh.
Exhaust Duration at 050 inch Lift
253
Exhaust Valve Lash
0.000 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio
0.540 in.
Gaskets Included
No
Grind Number
305H
Intake Duration at 050 inch Lift
253
Intake Valve Lash
0.000 in.
Intake Valve Lift with Factory Rocker Arm Ratio
0.540 in.
Lifter Style
Hydraulic flat tappet
Lifters Included
Yes
Lobe Separation (degrees)
110
Locks Included
No
Part Type
Camshaft and Lifter Kits
Product Line
COMP Cams Magnum Hydraulic Cam and Lifter Kits
Pushrods Included
No
Quantity
Sold as a kit.
Retainers Included
No
Rocker Arms Included
No
Timing Chain and Gears Included
Yes
Timing Chain Style
Double roller
Valve Lift with Factory Rocker Arm Ratio
0.540 int./0.540 exh. lift
Valve Springs Included
No
Valve Stem Seal Set Included
No
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