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Chevy 408 (3.75 x 4.165). Stock GM block, 4-bolt main, line bored/decked. Main and Head studs. 500 laps since rebuild. Cola crank. Manley H-Beam rods (Internal Balance). Has NEW - Mahle pistons, Comp roller-cam, Brodix -11X heads (spreadport). Currently set-up as dry-sump (easily converts back to wet-sump). Strictly used Valvoline 20w-50 full synthetic, changed every 3-4 nights. Can hear run, still in car. $6800 o.b.o. Call or text - (815)7five7-nineteen81 Steward, Il