I haven't taken the valve covers off yet as it winter here and dealing with some health issues but, I wanted to ask before hand. I thought someone might remember if they had something similar. It did have 1.6 rockers prior then they switched to the Crower Rockers and Lifters. If I recall there was guys running the Mopar Magnum ones I think with the Harland Sharp Rockers if I remember correctly. I'm not sure what brand the tall ones on it are now. They came on the truck as you see.