has the engine been bored oversized?? when i bored my 22R to .060 oversize i had to go to a v6 radiator, because the stock radiator would overheat on the interstate or hwy hills
radiators come with a rating system. The stock 2row toyota radiator in the 22r/22re (96 to 116 HP) trucks are rated at 250 HP. The radiator in the '86 turbo (133HP) is the same only with a nipple for the coolant return from the turbo. Just boring .060 over should not have overwhelmed the stock radiator were it in good order.
1stgenboy
