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i ve got a 1993 302 block that came with a hydralic roller cam can i put in a flat tappet hydralic cam in its place. i know itll need different pushrods , and valve springs
 

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All the blocks are the same ...if you have all the parts from another 302 they should go right in . The only difference with the roller blocks is that lifter bosses are taller . The cam is in the same relation to the crank and deck
 

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Yes you can put a flat tappet cam in a roller cam block,however you cannot put a stock hyd roller in a early block due to the lifter height on the block.If you want a hyd roller on an early block you can run the link bar hyd retro lifters.
 
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