Predator head rework is a service we offer. The service includes a mild port job on both the intake and exhaust ports, touch up valve seats if needed, surface and o-ring grove for copper sealing ring. The port job is a mild job focused on the short side radius, casting flaws and bowl area. Ports have a 220 cartridge roll sanded finish. They are surfaced a standard .040 off unless otherwise stated by the purchaser.
Customers can expect a 4-5hp gain with this. The factory ports are good enough to run but nowhere near a performance port.
For those that wonder how this works. You purchase this, You box up your heads and send them to the address listed below with your name and contact info in the box, You then wait 7-10 business days for them to return. It’s that simple.
405 3rd Street
McClelland, Iowa 51548