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427 Chevy Big Block - Radical Rat

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434-inch big-block Chevrolet
Bore:4.285-inch
Stroke:3.750-inch
CID:434 cubic inches
Compression ratio:10.5:1
Camshaft:Crane solid roller
Cam duration:256/260 degrees @ 0.050-inch tappet rise
Valve lift:.820/.780-inch
Rocker ratio:1.8:1
Lobe separation:110 degrees
Installed centerline:106 degrees
Top ring:.043-inch Total Seal
Top ring gap:.016-inch
Second ring:1/16-inch Total Seal
Second ring gap:.012-inch
Oil ring:3/16-inch (9-lb drag)
Piston:Mahle
Quench clearance:.042-inch
Block:World
Crankshaft:Bryant, billet
Rods:Eagle 6.800-inch
Main journal:standard BBC
Rod journal:2.100-inch
Cylinder head:300cc Brodix oval raised port; Weldtech CNC; HVH
Peak intake flow:375 cfm at .700 inch lift
Intake valve diameter:2.300-inch
Exhaust valve diameter:1.86-inch
Intake manifold:Brodix, Ported by HVH
Carburetor:Carb Shop Holley 4150
Carb spacer:HVH
Header:Hooker 2-inch primary
Ignition:MSD

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