Author Topic: 550F Head milling questions  (Read 622 times)

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2tall

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550F Head milling questions
« on: October 28, 2009, 02:35:16 PM »
Couple of questions for those of you who have milled around on your power plants in search of a few more ponies.

I have a 550 K8 with just over 12k miles, and it runs good. But, I am thinking about having the head shaved down a bit and have the valves ground and seated while I'm at it. I can get all of this done for FREE (best friend is a machinist), but like many good intentions... just because I want to doesn't mean I should. ;D

I will be replacing the head gasket this winter anyways, and thought that while it's off, I could tweak on it a little in the process. ORRRR... Should I just get a 500 head and the 650 cam and be done with it?

What is involved in the search for more compression without tearing into the lower half of the engine? Are there any project threads out there about this? Any do's or don'ts? Is the power gain worth it?

Or should I just leave the whole thing alone?

Finally, as I don't plan on hanging onto this bike forever, would this mod (even if done correctly) hurt the resale value any?

I appreciate any and all input, even if you tell me I'm a moron for wishing this on myself.

Paul

Offline bryanj

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Re: 550F Head milling questions
« Reply #1 on: October 29, 2009, 11:05:13 AM »
500 and 550 heads are identical so why swop?

only mill if its not flat

If head is removed pull the cylinders or the base gasket will leak

make sure all gasket surfaces are "mirror finish" clean and no crud gets into the oilways or bye bye cam and head
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!