5.9 magnum block bored .020 all machine work done by arrowhead machine and speed New brass freeze plugs 406 cubic inches 9.7:1 compression Scat cast crank Scat rods Keith black pistons 4.020 Rotating assembly balanced to within 1 gram Piston rings gapped for small shot of nitrous ARP main studs Engine quest ported and polished iron heads: 1.9" intake valve 1.6" exhaust valve 3 angle valve job A...
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