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#1
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340 camshaft i.d.
hi fella's--long time/no chat. i just removed & disassembled a 340 i have owned for 5 yrs. i'm trying to identify the camshaft,was told it was a purple shaft. the only numbers stamped on it are on the back (distributor) end they are 901284. can't find anything on web, anyone know what i have?? has very choppy idle & doesn't start making power til 2500rpm's.
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#2
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The numbers stamped on the end of factory cams are probably just the number of the blank, the only way to know the actual grind is to measure with a dial indicator while the cam is in V blocks.
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#3
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Agree with John. If there is a purple splotch of paint on it, its probably MP and these are quite distinctive when it comes to lobe lift. eg. 284/484 "031" cam will have a .322 lobe lift off the base circle (lobe lift X 1.5 = stated cam lift)
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#4
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I have been trying to find out the same thing about a 440 cam with # on the cam sprock side no luck so far . good luck on yours
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#5
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All aftermarket cams have the grind numbers and maybe lobe profiles on the rear of the cam, pull it and post it.
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