This short block has fully forged rotating assemble, and Dart block it will hold big power reliably.
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Block: Dart Big M 9.8 4 Bolt Main 2pc Seal
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Bore/Stroke: 4.500 x 4.250
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Displacement: 540 C.I.D.
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Crankshaft: Manley 4340 Forged 4.250" Stroke Internally Balanced 2pc.
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Connecting Rods: Manley 4340 Forged H Beam 6.385" ARP 8740 Bolts
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Pistons: Forged -10cc Dome Single Valve Relief
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Piston Rings: Moly Rings
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Compression Ratio: 112cc=9.8:1/118cc=9.4:1
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Camshaft Bearings: Installed & Clocked to OEM Position
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Freeze Plugs: Brass Installed & Sealed
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Oil Galley Plugs: Installed & Sealed
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Weight:360
Contact Southeast Performance for details and pricing.