I am having an issue and I need a little help. I blew the head gasket on my 89 YJ with 90K miles. I know I can easily swap the head gasket, but am worried about warp. I did not over heat it but I have heard that due to the length and weight of the head, they are prone to warping.
I could also swap in a 4.0 Head and exhaust, cost about $500.
I can also buy a complete 99 4.0 with 66K miles for $400. But then have to rewire, add fuel pump, probably are least $1000 when all said and done
Or I can buy the 4.0, and stroke it with the 4.2 crank and rods, but if I do this I want to keep it carb, is there anyway to do that using the 4.0 block and 4.2 intake manifold? I think there would be issues with distributor and fuel right?
Also I am selling the jeep. So I don't want to go overboard unless I am sure I can get the money back from it