If you mean 400 and 450 heads are you refering to LP heads. First LP 400 tractors used the same head casting as a gas. Then other 400 tractors used the head only used on 400 and 450 LP tractors. There was more than one head # used for some fuels, but they were a dirrect replacement for the other # for the same fuel. Have found the same # gasoline heads with matching date codes from 54 400 to 58 450 tractors. Most are # 362174.
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Today's Featured Article - Fabrication (Who Me? Make it myself?) - by Chris Pratt. First of all, what are the reasons for not fabricatin your own parts? Most judgements on what should be purchased rather than fabricated stem from: Originality - If the tractor restoration is to be 100% original, it is likely that you should spend the time and money to locate the component in the used or New-old-stock market. Since this can be extremely difficult, you may want to fabricate the item or purchase a modern replacement temporarily, but eventually, you s
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