late 70s OMC Iron Duke 4 cyl

Bob1944

Petty Officer 1st Class
Joined
Aug 16, 2008
Messages
216
I picked up a late 70s open bow Peremarquett 16' with what I am told is a GM Iron duke 4 cyl. Model number 990234M. I have been looking online for a model number site to tell me for sure the year and other info for this engine. I may need a head gasket and some other ignition parts. Any info you have on this info and websites for info would be appreciated.

Thanks
Bob:redface:
 
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