HEADS WILL NEED SOME WORK. NEED A FEW BOLT HOLES FIXED AND PROBABLY A NICE MILL/SURFACE JOB.
These will need to be disassembled, cleaned up and inspected before doing any performance mods you may want to do to them. I've looked them over and didn't see any obvious damage or cracks. I would recommend a machine shop going through the heads and checking everything out. Only thing I guarantee is no cracks.AFR 165cc SBF Renegade 20 Degree Street Heads. Outside Diameter of Outer Spring in. Number of Springs Per Valve. Rocker Arm Nut Thread Size. These cylinder heads will accept AIR injection and are street ported.
Requires supplied thermactor reducer to mount alternator/accessory brackets. Confirm orientation of plug prior to installing cylinder head. Increase torque and horsepower in your small block Ford engine with a set of Air Flow Research 165 heads! The lightweight aluminum heads feature 100% street-ported intake runners, exhaust ports, and combustion chambers for enhanced flow over your stock small Ford heads.They also feature a competition 5-angle valve job, 8mm valve stems paired with 1.900 in. Intake and 1.600 in. Exhaust valves and feature a combustion chamber volume of 58cc, an exhaust port volume of 68cc, and an intake runner volume of 165cc. Viable applications for this model include Ford 4.7L/289 (1963-68), 5.0L/302 (1968-95), and 5.8L/351 (1969-95) engines featuring stud-mount rocker arms. Please note that these heads will not accept rail rocker arms and that hardened push rods are required.
In addition, mounting the alternator and accessory brackets requires use of the supplied thermatractor. For over thirty years, AFR has been engineering cylinder heads that deliver unmatched flow and power output.Manufactured with advanced porting technology, AFR heads are flow-tested and subjected to a rigorous quality control process to ensure maximum performance in all applications. Whether you pilot a top fuel dragster or a street machine, AFR has a set of cylinder heads designed for you. I will try my hardest to respond quickly to your problems. I leave feedback when feedback is received. Items : All items are described to the best of my knowledge but keep in mind I'm not an expert in all fields. All items are used parts and have normal wear and tear. We use the most economical carriers for you depending on the item & your location. We have pick ups from our location Monday - Friday throughout the day. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Engines & Engine Parts\Cylinder Heads". The seller is "danaconda1" and is located in this country: US. This item can be shipped worldwide.