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Melling Pushrods

1259 Views 4 Replies 3 Participants Last post by  BillK
I have looked everywhere. Can not find out the difference in the MPR-103-B and the MPR-308. Seems the are like a 1/8 different, hard to tell. I got a batch of the MPR-103-B for a tall deck motor I'm building and it had a MPR-308 in it.

Will this make any difference? Should I replace it?
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You might want to call Melling and make sure that the Ford pushrod is hardened and can work with the Big Block guide plates. Most Fords use self aligning or shaft type rocker systems and do not need a hardened pushrod.
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