Mercruiser 7.4 thunderbolt parts ?

[anglosax]

Hi Guys
I have mercruiser 7.4 late 80s I guess , what is the automotive cross ref to this engine as I need to buy some non marinized engine parts
Thanks

 

[Don S]

Re: Mercruiser 7.4 thunderbolt parts ?

Get the block casting number and check it here http://www.ajgeneral.com/bbc_block_casting_numbers/