Hi guys, please help me out here. I'm swapping out my 258 for a AMC 360 in my '82 CJ5. I've read numerous jeep forum topics that say the swap will require a cooling upgrade from 2 to 3 core radiator larger 7 blade fan and shroud. I was all set to order a new 3 core online, but as I was removing my cooling system I took a glance inside the cap and it appears to be a 3 core. The fan was also a 7 blade clutch fan with the original shroud. So now I'm thinking I could just keep the original set-up and have the radiator flushed and pressure tested...? Anyone have experience with running a 360 with what appears to be a 258 heavy duty 3 core cooling package? The 360 has been built stock with the only upgrade of an RV cam, so it's not a HP monster. Thanks!