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i have a bunch of 420a engines all remanufactured buy Import Engine Specialties they are all .020 over with new pistons and ring clevite bearings, blocks have been shotblasted,tapped,decked,boredand honed. cylinder heads have been cleaned,decked,tapped,new guides,valves,locks, retainers,valve job.come with new water pump,idlers,oil pump,and gasket kits. i also have a few with je pistons and rings,eagle h-beam rods,melling oil pumps,arp bolts,copper headgasket,cylinder heads have been mildly ported,and camshafts and gears are available. you can have any combination of parts to meet your needs. ALL engines have been sim tested to be sure nothing is wrong. a sim tester is a machine that you bolt the engine to and the machine turns the engine over at a low 500 rpm (average) to check for problems. it also lets the pick up tube suck up hot oil to check oil pressure and so on. price on a stock long block is $2400. built engines are around $3500-$4200 depending on what you want(with core charge). group buys will get you even better deals. i worked at the place that built them for almost 10 years tho i don't anymore i do still deal with them alot. they have specailized in import engines for over 20 years and have done alot with 4g63's but are now seeing the 420A as a good base for making big horsepower.so trust they have been built buy pro's. as soon as there web site is fixed i with post that too.
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