i know that but i dont want to buy n e block that is n/a and make it turbo to much shit.... i wanna have a block that is built for boost not an n/a.... i have a sr20det in my car and it has a knock... i jus dont feel lke taking out the motor and rebuild it... i rather go nd buy a longblock but nobody is selling n e longblocks only the swap i dont need another swap.... but thanks for answering my question...