World Products Ford Windsor Jr. & Sr. Cast Iron Heads

The stock World Products Windsor Jr.180cc runner heads will flow 226 cfm on the intake side and 144 cfm on the exhaust. With our “Undercover Porting” the intake air flow improves to 244 cfm while the on the exhaust side air flow will jump to 161 cfm.

The World Products Windsor Sr. 200cc runner head will flow 242 cfm on the intake side and 154 cfm on the exhaust in stock form. After our “Undercover Porting” the intake will flow 255 cfm and the exhaust will improve to 170 cfm.[/one_half]

One of the keys to extracting maximum performance from cast iron cylinder heads is combustion chamber work. The Windsor Jr. / Sr. combustion chambers are much improved over factory Ford heads.

From “Undercover Ported” to CNC Sportsman Ported, we offer the World Products Windsor Jr. and Windsor Sr. Ford cast iron heads anyway you want them. And yes, we will also rework your heads!


Complete World Products Windsor heads with “UnderCover Porting“.  Assembled with 11/32 stainless valves, flat tappet springs & locators, steel retainers, machined locks, rocker studs and guide plates. Combustion chambers are reworked, valve seats machined and heads are flat surfaced to your specifications.   

Bare World Products Windsor castings with “UnderCover Porting“.

Looking to fool’um? The World Products Windsor heads resemble the factory Ford heads on the outside.  We had disguise packages that will make them look even more like the factory heads.

Cylinder Head Design Form: Fill out our online form for a recommendation and pricing on a set of heads built specifically for your application. Also, here is a link to more detailed information on our Complete Cylinder Head Assemblies. Cylinder Head FAQs

Sending your cylinder heads to us for modifications? Check out our head shipping tips.