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F20c Crankshaft - stroker kit

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Old 05-25-2014, 02:44 AM
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There are only a few cases of bad rebuilds and I know of plenty of F20Cs used in other cars that have happily been rebuilt.

There is much more than bores to the engine rebuild. There is no reason why you can't replace the FRM with a ceramic coating. After all, this is exactly what Honda was using the FRM for - super hard surface property.

And of course there have been plenty of H22As that have been rebuilt which is pretty much the same bottom end as the F20C
Old 05-25-2014, 05:28 AM
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Originally Posted by AlexGJ248
You can just replace the FRM liners with Darton sleeves though to get around this issue.
As if it were that simple!

FRM cylinders are cast integral with the block and must be milled out. The potential for rigidity issues is simply too great.
Old 05-25-2014, 05:31 AM
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Ok, I did make it sound simple!

I think 'funtimefrankie' took his block to a machining specialist and they did it for him.
Old 05-25-2014, 06:15 AM
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Milling the block to then change the liners is not that big a job of you have the block and just go drop it off to a machine shop
Old 05-25-2014, 01:33 PM
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Originally Posted by a3lkx
Thanks for input guys, I lost track of this post so I do apologise for the late response. My current crank is supposedly 17 thou out. i am considering have it reground to 20 thou and the appropriate shells to accommodate this, plus a full gasket set. I was wondering how much a 2.4 stroker kit would come in at but having shopped around I don't think this is an option as its to expensive. I plan on rebuilding the engine and dropping it back into the car, keeping costs as low as possible. Any ideas on the total cost. I'm going to call honda next week for a price on a new crank , for a laugh!

Thanks
A new crank will cost you $1000.
Old 10-06-2020, 10:39 PM
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Originally Posted by a3lkx
Thanks for input guys, I lost track of this post so I do apologise for the late response. My current crank is supposedly 17 thou out. i am considering have it reground to 20 thou and the appropriate shells to accommodate this, plus a full gasket set. I was wondering how much a 2.4 stroker kit would come in at but having shopped around I don't think this is an option as its to expensive. I plan on rebuilding the engine and dropping it back into the car, keeping costs as low as possible. Any ideas on the total cost. I'm going to call honda next week for a price on a new crank , for a laugh!

Thanks
im in the same boat with my crankshaft. Can you elaborate on resizing the journal, sourcing bearings or what needs to happen?
Old 10-07-2020, 02:30 AM
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I wouldn’t get a Honda crank reground personally, you’re then limited to after market bearings that only come in one size, rather than proper graded oem bearing shells. The bearing clearance on these engines is critical to its oil pressure and subsequently life. I’d try and find a good replacement crank.

on the subject of stroker cranks, you absolutely will gain a load of power and torque, if you’re not then something else has gone wrong.
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