i had my heads crank and block done by these guys. they dont bull shit you at all they helped me with every thing. this was my first time ever rebuilding a engine and they took me in the back to show me what was bad on my heads then told me my options. i had a friend with me that has been working on engines for years to make sure i was not going be dicked around or be sold something i didnt. john never try selling me something i didnt need or dick me around. he broke down the kit i was getting to show me i was getting a good deal and i was. would of cost me lot more to buy it from anyones else.