Selling a set of Pontiac Firebird cylinder heads. These are used 400/265 hp open chamber
QR Code Link to This Post
They are matching date code of E279 with casting number 45. They have 1.96 intake and 1.66 exhaust valves. These are hard to find matched set from a well maintained motor. They come with all rocker arms and guide plates. These are used and should be freshened up with seals and guides before using.