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66chevynova 08-30-2009 03:26 PM

engine codes
Can anyone help me figure this code on this motor? it is mk07800. I can't find anything about it. I would like to rebuild it and would like to know alittle bit about it. Thanks ,Galen

DoubleVision 08-30-2009 06:53 PM

I`m guessing this is a small block chevy? If so the M indicates GM of mexico. What`s the casting number? Does the block have Hencho en mexico on it?

ericnova72 08-30-2009 07:05 PM

Sounds typical of a Targetmaster crate replacement engine #.

66chevynova 08-31-2009 04:15 PM

Doublevision It is a chevy motor and I did recheck it and it does have Hecho en Mexico on it. The casting # is 3970010. I'm trying to find out what the horse power is.

DoubleVision 08-31-2009 05:58 PM

As Eric said, it`s a target master engine. It didn`t come with much power. It has large chamber smogger heads on it and dirt low compression ratio.
These engines weren`t made with performance in mind. But you can use it to build power if you wish.

fast68 08-31-2009 09:00 PM

just a replacement common mexican crate 350

not great castings quality,,..,,. but if it runs then thats a good thing

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