'74 Heads

7259Member

Hi,

I'm in the process of freshening up my '74L with 15k miles, and I have a few questions.

I have read on this forum where the std 4v valves are prone to failing, is that the case for the last of the 4v heads with open chambers (assumed), small valves (assumed) and large ports (confirmed)?

I don't know whether to keep this standard low compression engine (and replace gaskets, seals, high volume sump, fully grooved mains, oil gallery restrictors, advance the camshaft 4deg, just minor work so as to not impact on originality) or if the valves are a potential issue, just swap it out for a 393C alloy head stroker (and store the original engine for safe keeping). As you would know, the Cleveland is well catered for here in 'the land down under'.

I'm not looking to race 7259, I'd just like to drive it spiritedly without a failure.

Any information or advice you can supply me with will be much appreciated.

Thank you,

Matt

12/13/119:41 PM

Original Post

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