Cylinder Heads

Diggerdon · Sep 19, 2016

I have used my Ford 800 for 30 years and it has run good. Compression tests indicate I should have the heads worked. My question is do I need to have anything done to them because of the unleaded gas now days ? :?

Dean · Sep 19, 2016

Not really, but if it has been 30 years since rework, it probably needs seats and guides anyway.

Dean

Destroked 450 · Sep 20, 2016

I would think after 30 years the rest of the engine would need overhauled also.

Diggerdon · Sep 20, 2016

(quoted from post at 20:06:29 09/19/16) I have used my Ford 800 for 30 years and it has run good. Compression tests indicate I should have the heads worked. My question is do I need to have anything done to them because of the unleaded gas now days ? :?

This old girl has never been reworked so I imagine she is due for more than valves.

Destroked 450 · Sep 20, 2016

As for your original question, I'd probably have hardened seats put in the heads to help with unleaded fuels.
The rest would be a matter of what it needed to get a good fresh overhauled engine that will last another thirty years.

showcrop · Sep 21, 2016

It would also need new ring grooves for the pistons, (easier to just replace the pistons, LOL) and new sleeves as the ones in it will have a lot of taper.

Cylinder Heads

Diggerdon

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Dean

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Destroked 450

Well-known Member

Diggerdon

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Destroked 450

Well-known Member

showcrop

Well-known Member

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