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Small Block Chevy Motor - Educated Chevy

BY THE NUMBERS
SAM 401-CID Small-Block Chevy
Bore: 4.125 inch
Stroke: 3.750 inch
Displacement: 401 cubic inches
Compression ratio: 10.4:1
Camshaft: COMP Cams solid flat tappet
Cam duration: 244/252 degrees
at .050-inch tappet rise
Cam lobe lift: .370/.370 inch
Valve lift: .666/.666 inch
Rocker ratio: Jesel, 1.8:1
Lobe separation: 104 degrees
Installed centerline: 97 degrees
Top ring: Total Seal Diamond Finish .8mm
Top ring gap: .016 inch
Second ring: Total Seal .8mm
Second ring gap: .030 inch
Oil ring: Total Seal low-tension 2mm
Piston: Wiseco, 17cc dish
Block: Chevrolet Bow Tie cast iron
Crankshaft: Lunati forged
Rods: Lunati 6.125-inch H-beam
Main journal: 2.648 inch
Main bearing clearance: .002 inch
Rod journal: 2.100 inch
Rod bearing clearance: .002 inch
Cylinder head: All Pro
Peak intake flow: 360 cfm
Intake valve diameter: 2.125 inch
Exhaust valve diameter: 1.600 inch
Intake manifold: Edelbrock Super Victor
Carburetor: Holley 4150
Header: Hooker 1 7/8 to 3.5-inch collector
Ignition: MSD
Damper: TCI
Water pump: Meziere Electric


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