I just got these back from our engine builder and they are good to go. These look to have been bolted up to a race engine but never raced!!!! If they have been raced then they havent much cause they are like new! Steel 2.05 and 1.60 valved, roller springs, and Crower retainers and locks. These are a 190 intake runner but these have a massive Nice port work done to them.
I dont know what the flow is since porting done though. They are around 49cc as well. Nice nice set of alum heads! The item "SBC 23 Degree AFR Alum Ported Cylinder Heads Dirt Late Model IMCA Race Car" is in sale since Saturday, May 11, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts".The seller is "bamafan2709" and is located in Lexington, Alabama. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Colombia, Panama, Jamaica, Barbados, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Gibraltar, Guadeloupe, Iceland, Jordan, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Martinique, Maldives, Nicaragua, Oman, Paraguay, Reunion, Uruguay.