AFR 165 SB Ford Renegade Cylinder Head - (58cc)

These AFR 165 "Renegade" series cylinder heads come ready to go for the maximum street/strip small block Ford performance possible when using a stock short block and OEM pistons. The AFR 165 Renegade series cylinder heads feature lightweight 8mm valve stems with 1.900" intake and 1.600" exhaust valves.

The AFR 1399 heads have CNC profiled 58cc combustion chambers, 165cc volume intake runners and 70cc ultra high flowing exhaust ports. These AFR small block Ford cylinder heads come fully CNC ported and ready to provide the maximum performance from your street/strip combination. Many performance features are included with this serious race piece in street disguise.

With AFR’s trademark 3/4” thick head deck, there's no problem handling the additional cylinder pressure of a turbo, blower or nitrous. Each AFR 1399 casting is drilled for the larger 1/2” head bolts or studs for maximum head gasket retention. Adjustable push rod guide plates and stout rocker studs standard equipment. Stud mount rockers arms and hardened push rods required.

These AFR 1399 165cc performance heads are not emissions legal. No heat riser or air pump holes for maximum street/strip performance.

NOTE: Modern hydraulic roller camshaft profiles will typically experience valve float at 6000-6200 RPM with the standard valve springs because of their fast ramp rates and higher valve lift. It is highly recommended to upgrade to the optional higher pressure dual valve springs to reduce chances of valve float associated with 6200 RPM or higher. We can also fit your heads with PAC Racing, Lunati or our own severe duty springs for an additional cost. High RPM applications should also use tool steel or titanium retainers and the ARP 7/16" rocker studs.

FlowTech Induction can provide a custom built cylinder head package without the high price!

PART NUMBER: AFR-1399