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- Jul 18, 2011
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I am in the process of doing a top-end rebuild on my 1991 Mercruiser 7.4L (oval ports) 330 hp.
I am not sure if the head bolts used 20 years ago were the TTY kind. I plan on purchasing a new head bolts for re-assembly, but the removal of TTY bolts may be a bit more tricky than 'standard' head bolts.
Does anyone know for sure, I searched my manual (#15) a bit, but did not see anything definitive ??
Thanks in advance.
I am not sure if the head bolts used 20 years ago were the TTY kind. I plan on purchasing a new head bolts for re-assembly, but the removal of TTY bolts may be a bit more tricky than 'standard' head bolts.
Does anyone know for sure, I searched my manual (#15) a bit, but did not see anything definitive ??
Thanks in advance.