I'm wondering if anyone can help me out I have a 1980 fxs and need to replace the head gaskets getting some oil seepage and blow by his do I tell if I need to get new cylinders and piston and also if I get stock 80 inch piston and cylinders do I have to do anything to my original heads other then make sure flat and internals are ok ?
Shovelhead top end rebuild help
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Might help. might not.
Good Luck.
I keep these on my shelf also.
https://www.ebay.com/itm/1978-1-2-to....c100005.m1851 >>>>>> Mine is a physical book. Not a cd with a pdf on it.Last edited by Guest; 10-24-2017, 7:47 AM. -
If I go with new stock cylinders and pistons my heads are ok size wise as long as they are flat correct ?Comment
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Don't know. I have swapped to 80 inch heads on 74 inch cylinders on a 1200 cc earlier nose cone engine. Not enough detail in your answer. < Pics? >
I was building a lower comprehension motor for easier kick only starting. Working good still for years .
Could always do a squiish test before final assembly I guess. Or use
One of these instead. Not that I expect you to know how to use the tools.
Lately. I expect thread like these to go South real quick.Comment
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As long as you're in speck with the wall fit (For given piston) and the out of round/tapper also falls in spec... Be good to go...
Keep in mind that the 80" cylinders are good up to a 0.030" overbore (Pistons are available in a 0.040" over, but the jugs really get thin at that bore.)
All three castings of the Shovel's heads will interchange...
Might want to let a shop freshen up the heads ...
.../// http://www.jockeyjournal.com/forum/s...ning+cylinders \\\...Last edited by Dragstews; 10-24-2017, 10:35 AM.Take my 45 and outrun em all ..Comment
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Look like many miles have been put on em...
Dang, if I would get the next size up from what bore it's at now ...
Your pistons looks to be cast Oem ...
Could get a set of Wiseco's .. They cost a bit more than the cast but money well spent....Take my 45 and outrun em all ..Comment
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Yes in thinking going for the wisecos what you you think about the jugs they look pretty rough to me ??Comment
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Theres no way to tell about those cylinders without putting a bore gage to them.man no offense or disrespect meant but judging from your questions sounds like you are in over your head.save yourself lots of grief and money and take that motor to someone that knows what they are doing.good luckComment
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On your jugs:
What I was trying to say is to do what's called a clean-up bore, that is going 0.010" over from the bore your at.. (If your bore is at .030" now, may be best to get another set )Take my 45 and outrun em all ..Comment
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