Have a buddy w a 1990 chevy 1/2 ton 4X4 w a 350ci and an auto trans he blew a head gasket n wants to know if it would be easier and or cheaper to do the head gaskets or change engine n what would fit?
A 1990...that's a close call. With high mileage might be better off with a crate engine. A Head gasket kit, that includes head, intake, exhaust, valve covers, and some other ones runs from $50 crappy quality to $150 for high-quality. Add sending out heads for a valve job, oil, coolant and a weekend...is it worth it? It depends on the condition of the lower end and your budget. And if you have all the needed tools. Your question, ..cheaper? The head job. But that engine, if original, may be throwing good money at an engine that might need rings, etc. And what would fit? Another 350 would be best
https://www.google.com/search?q=Chevy+350+crate+engine&ie=utf-8&oe=utf-8#q=Chevy+350+crate+engine&tbm=shop&spd=18337219177925137455 $1500 and up, rebuilt long block
If the truck is in good shape other than the blown head gasket I'd go with the crate engine (350) as Fordnut said. If this is a beater truck I'd put a used salvage yard engine in it. If you guys go that route, be sure to hear the engine run and check the mileage on it before you buy it. HTH. -Jim
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