Dw7e patch 1-037 cylinder heads

Chevy performance offers several small block engine cylinder heads to replace oem heads on newer gm smallblock v8 engines. Prior to 20, there is no date of manufacture on the heads. World products cylinder heads free shipping on orders. Located on the left side of the cylinder head top, with the exhaust ports facing you, there is a w, indicating world. The first available true aftermarket performance cylinder head, good for 3070hp over stock, and emissions legal. Description small block chevy heads 1037 1038 1039 1052 1058 sportsman il motown 220. Small block chevy sportsman ii cast iron cylinder head. With 200cc intake and 69cc exhaust ports, worlds sportsman ii cylinder heads offer 3070 horsepower gains over oem cast iron heads, yet are 50state emissions legal. World products cannot verify any other numbers which may have been stamped on the heads by other parties who may have made modifications. World products has recently redesigned all the machining and done some casting updates on all of its castiron cylinder heads.

Part numbers are located and stamped on the ends of the heads prior to 2005, then engraved on the ends of the heads after 2005. World products cylinder heads cast iron chevy small block. On world heads, casting marks and numbers are found below the valve cover bolts, inbetween the valve rocker studs. World sportsman ii small block chevy iron heads, straight plug. How do i identify cylinder head castings on world heads. World products cylinder heads free shipping on orders over. The industrys most popular true high performance cast iron cylinder head has been continuously improved since its introduction over 20 years ago. World products sbc sportsmanii cast iron cylinder heads jegs. Cylinder head casting id guide casting id numbers are located under the valve cover. As of mid 2012 the part number was moved to the intake face just under the.