Inliners International Forums General Discussion Engines GM 4 cylinders 151 153 181

There are 3 different 8 port heads,.2 marine and 1 industrial. The only part off the Iron Duke 151 you can use on a 153/181 is the pushrod guide plates. All 3 of the 8 port Gaskets , ., and the 8 port compared to the 5 port ., , the smallest 8 port is the industrial engine.