I have oliver billet rods & diamond pistons on order with JMB Justin. I'm going with a 8 psi pulley on a ROE SC. I will be pulling the motor for the install. I would recommend upgrading the rods. Everyone I talked to told me the rods are the weak link in our motors. Appox. price for rods & pistons is $3500 . Not cheap but worth it. Damn Viper tax.