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Old 04-23-2018, 06:42 PM
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Originally Posted by Mohavvalley
Here's how I'm getting 8.5

Can someone tell me what compression ratio is safe for 89???

I was assuming you were running a head gasket with a 4.370 bore.
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Old 05-24-2018, 08:54 AM
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Originally Posted by Griff
345's are way too big.
I'd look at these in the 320cc version. https://www.offshoreonly.com/classif...ds-o72091.html
Hey Griff,
This ad for the EQ 320's is gone, do you know who was selling them, assembled I assume?

Thanks
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Old 05-31-2018, 12:16 AM
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No, I don't remember for sure. Maybe Ateco??
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Old 05-31-2018, 09:06 AM
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Competition products also sells them assembled. I am pretty sure they will put whatever valves and springs in them you want also.
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Old 05-31-2018, 12:25 PM
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I'll check competition & Ateco on the heads, thanks for the tip.
Last edited by Mohavvalley; 06-01-2018 at 05:02 PM.
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Old 09-10-2018, 10:18 PM
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Griff.........crane 168731 or 168741...have to replace mine this fall.
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