Bought a 400 out of a Catalina. Was told it was a 72 and never apart. Block number is a 1971 400. Tore the engine completely down for a rebuild. Heads have casting 98. After reading it says its from a 71 455 so that tells me the heads were changed. Question is I was planning on Edelbrock heads but after seeing this should I rebuild these 98 heads for the car. Looking for a great weekend cruiser not a race car. Car has 3:55 gears and a locker. Thanks.
