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661 Stroker

Redfin

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Difference in skirt length between those 2.
I need a 56mm piston with a 12mm gideon.
395 has the correct dimensions in compression height and skirt length but it's a 13mm pin.
Granted these are forged pistons that DDawg had produced and I used a wrap of vinyl on the 12mm pin to center for pic. But I do believe the comp height and skirts are oem. DD can verify.

I did use the 12mm pin on 56mm 661 and 13mm on 395 to get ur query.

661 comp height. .885”
661 skirt from bottom of pin. .480”

395 comp height. .811”
395 skirt from bottom of pin. .688”629B1509-17C1-4118-BA0B-250AA8F01246.jpeg
 

Lightning Performance

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No over bore OEM but working on a stroker 394.
No burnt jugs for those, either. I'm just getting started with these 90cc plus saws.

Have a few scored 660 jugs to send out to bore.
Still looking for a 395 jug scored.
The only one here that runs decent stock was the 460BB I'm told. Then it pulled off the piston top lol. Someone gave me the jug. Exhaust will need an expansion chamber pipe being up that high to fix it. Transfer ports will never be OEM volume so no point in fixing it for a muffler saw.
 

RI Chevy

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No over bore OEM but working on a stroker 394.
No burnt jugs for those, either. I'm just getting started with these 90cc plus saws.

Have a few scored 660 jugs to send out to bore.
Still looking for a 395 jug scored.
The only one here that runs decent stock was the 460BB I'm told. Then it pulled off the piston top lol. Someone gave me the jug. Exhaust will need an expansion chamber pipe being up that high to fix it. Transfer ports will never be OEM volume so no point in fixing it for a muffler saw.
Kenny. Post some pics of the jugs please when you get them back from being chromed. Curious to see how they look compared to nikasil plating.
Thanks
 

Lightning Performance

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Kenny. Post some pics of the jugs please when you get them back from being chromed. Curious to see how they look compared to nikasil plating.
Thanks
I don't want chrome... chrome sucks.
Haven't sent anything out yet. Stopped mailing stuff two weeks ago with the holidays mess coming. Waiting till I'll have three jugs ready to send at once. Stihl looking for scored 084 and a 3120 jugs. If it doesn't happen I'll send out two 660's and something else. Scored oem 394 jugs keep eluding me also to bore for the stroker motor.

This is a Jawny's stroker thread not a pics gallery so I'll go away now.
 

MustangMike

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So:

1) What jug are we looking at, because it does not look like a 661 to me!

2) Seems like uppers are higher on the intake side. I know some think they should be level. I always like to hear thoughts, comments, theory!

Also, if you have any thoughts on bridge ports. I think they support a similar function.
 

Deets066

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So:

1) What jug are we looking at, because it does not look like a 661 to me!

2) Seems like uppers are higher on the intake side. I know some think they should be level. I always like to hear thoughts, comments, theory!

Also, if you have any thoughts on bridge ports. I think they support a similar function.
You are missing some fine details.
 

MustangMike

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Playing with some Asian clones may be fun, and I may learn a bit, but it sure as heck does not make me any expert!
 

MustangMike

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I'm busy as He** with my work (self employed), and I likely could not figure it out anyway, so I'm at your mercy.
 
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