I would say worry about getting your engine first before you get sleeves. First work on your engine ( the head, fuel setup,..etc) and then when you think it is too strong then get your motor sleeved and throw a big turbo or nos kit... but t get sleeves now o a stock block would be kinda pointless. Like said above it doesnt much you engine stronger..it makes it so it can handle more horsepower without breakig. Anyway thats just my opinion...Good Luck