03 navigator iron block with standard forged crank, arp main studs, new side caps ford bolts, clevite rods/main coated bearings, h beam rods with arp 2000 bolts, .20 over 10:1 comp custom diamond pistons with total seal stainless steel top rings, all the machining was done by Houston engine/balancing engine has around 200 miles and 2 dyno pulls it made 396 rwhp n/a asking 1500 firm my # is 8326182257
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