I have a pair of 48's these were rebuilt for a 69 and assembled then a better dated set was sourced and bolted on in place. These are complete ready to run date matched 69 heads. the include valve springs, push rod guide plates, valves, and screw in studs. VERY nice set of early date coded heads. asking 1250. email or text for pics raiiita@yahoo.com 559-321-4096