6.1 Engine Block Casting Number 05037788AB Material Iron Displacement 6.1 liter/370 cubic inches Bore Diameter 4.055” Stroke 3.58” Deck Height 9.25” Bore Spacing 4.46” Thrust Bearing Location Number 3 Main Cap Style 2 bolts with lateral cross-bolts Camshaft-to-Crankshaft Center line 7.44” Bell H ousing Bolt Pattern Same as Magnum LA V* small block (top center bolt removed) Camshaft Duration @0.50” (Intake/Exhaust) 283/286 Valve lift (Intake/Exhaust) 0.571”/0.551” Cam Journal Diameter 57mm Front MDS No Variable Cam Timing No Cylinder Heads Casting Number 5037769AA Material Aluminum Combustion Chamber 74cc Intake Port Shape Square Intake Runner Volume 188cc Exhaust Port Shape D Shaped Exhaust Port Volume 57cc Intake Valve Diameter 2.08” Exhaust Valve Diameter 1.60” Cylinder Head Bolt Style Torque-to-Yield Cylinder Head Bolt Size M12 X 1.5mm & 8mm Rotating Assembly Piston Material Hypereutectic (lightweight) Piston Style Flat top with valve notches Piston Ring Package 1.5mm, 1.5mm, 3.0mm Wrist Pin Diameter 0.984” Connecting Rod Material Powdered Metal Connecting Rod Style I-Beam Connecting Rod Length 6.242” Connecting Rod Bearing Bore 2.125” Crankshaft Material Forged Steel Crankshaft Main Journal Diameter 2.559” Crankshaft Rod Journal Diameter 2.126” Crankshaft Reluctor Count 32X Crankshaft Mounting Flange 8 bolts
