429 CI Small block Merlin world block Buick heads this engine is complete carburetor pan, including external oil pump starter flex plate carburetor throttle stop. It has 17 passes on it since complete freshen up made 780 on the Dyno I have Build sheet and dyno sheets I also have a brand new set of Valve springs 12500 will consider reasonable offers if interested needing information you can give me a call at 832-715-7646 James