Searley 143 Posted August 19, 2017 Hello,Does Anyone Know What's Involved In Converting A 200 X-Flow To Cast Iron Head(ie It Used To Be An Allow Head,To Be Converted/Marinized) I Heard It Can Be Done But There's A Few Things That Need To Be Done.What About Upgradeing The Distributor/Ignition System. Share this post Link to post Share on other sites