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  #51  
Old 1 Day Ago
Keithybloodygeorge Keithybloodygeorge is offline
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Talk to me about rods people, do I need these heavy duty S&S for this size motor or will stock hold up ok?

I seem to remember mrmom suggesting that stock rods prepped right should be ok for a stock bore stroker so I’m assuming my bike will fit into that category

Beyond clearance for the stroke what sort of work would you put into a set to ensure strength and longevity?


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  #52  
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my motor had brand new stock -52 rods put in it 40 yrs. ago.73 cu.in.
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  #53  
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I would stay stock rods if not going crazy.
The S&S rods I have are much heavier than stock and not really needed if not building a beast.
I would stay stock for balancing purposes and less shaking parts off... unless you plan on taking your wife riding with.. good ol Milwaukee vibrator..
Same with pistons try finding newer versions if possible. The newer forged and hypereutectic are much lighter than the old forgings and don't grow as much so require less clearance so a quieter engine.
As far as compression I would stay between 9-10.5 : 1 makes for more availability when out and about, which is a big help for me when going to rallies.
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  #54  
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40 years hey Bruce? Yeah stock rods it is I reckon

I’m pretty committed on these pistons Shane,I just ordered some rings from total seal. The pieces are slowly coming together!


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  #55  
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On the weight of the pistons, again, I have a set. They were dead on weight with cast pistons. What they weren't is consistent. I had a spread between the front and rear pistons I took care of with a wee bit of milling.

be careful on the total seal rings. The pistons you are using will expand substantially and I can tell you from experience wide gaps are preferred.

i hope total seal rings have changed too. They used to have some of the highest ring tension of anything I worked with. Keep in mind I haven't used a set since 1999.

If they haven't changed, You'll just want to monitor cylinder temps during the first few hundred miles and back off the fun grip when your legs feel toasty.
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  #56  
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Default Might want to consider

Thermal barrier coating on the tops and a friction coating on the skirts for two piston it relatively cheap dont know of anyone on here thats tried it yet.
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Quote:
Originally Posted by Keithybloodygeorge View Post
40 years hey Bruce?
yep I mentioned that in post#10.it's not a touring bike so it doesn't get a lot of miles,but the one's it gets are hard.yours will be too.just ask Shane.
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