you're gonna have a compression increase when you do that. just make sure the bottom end doesn't have any problems. on highmilage motors sometimes getting a valve job or swapping heads can blow out an already weak bottom end.
I get what you mean, but it's not like the motor is being supercharged or anything. I'd hope that a cast iron block that is only a few years old could handle new heads! If not, well... it would suck, that's all I can say.
I get what you mean, but it's not like the motor is being supercharged or anything. I'd hope that a cast iron block that is only a few years old could handle new heads! If not, well... it would suck, that's all I can say.