Chevrolet Corvette 427 Engine High HP Factory GM OEM. Only the heads are rebuilt the engine needs to be rebuilt thats it and also a new pair of valve covers will be included. The item "66-72 Chevrolet Corvette Camaro Chevelle Impala 427 Engine & Heads GM Big Block" is in sale since Thursday, January 30, 2020. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Air Intake & Fuel Delivery". The seller is "carandtruckparts" and is located in Santa Ana, California.This item can be shipped worldwide.