Parker Performance will install your PAC Racing 1234X Valve Springs and PAC Racing 434 Retainers and we use all OEM replacement products, as well as following the OEM Manufacturer's guidelines for replacement. This means the cylinder heads are removed from the vehicle, disassembled and bench re-assembled. This requires replacement of head gaskets, and we also suggest head studs upon re-installing the heads. Labor cost includes all OEM Ford gaskets & fluids (valve covers, timing cover, GT500 headgaskets, coolant, etc) as well as the ARP Head Studs & ARP Crank Bolt (if vehicle not yet equipped). Please select from options below.
