Author Topic: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.  (Read 4976 times)

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RideProducts

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New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« on: December 08, 2016, 07:38:32 AM »
New piston kits (piston, rings, wrist pin & circlips), stock size with proper ring pin locations for either the 4/6 motor or standard 440 Invader. $65 each or $120 per pair, free shipping within continental US.
207949878aaaa2
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Interceptor398

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Re: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« Reply #1 on: December 08, 2016, 10:57:29 AM »
Welcome to the site!

Teherr

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Re: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« Reply #2 on: December 08, 2016, 07:12:09 PM »
they appear to be invader piston, and not 4/6 which have a different pin location. 
440 Invaders
440 LTD Monohead
Liquifire
80' 4/6 
Intruder Ice Oval Racer
74 El Tigre T7 Free Air
80 Polaris 440 TX
250 & 340 Enticers

sxrsist

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Re: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« Reply #3 on: January 11, 2017, 08:45:28 AM »
so are you telling me the 440 invader and 80 440 4/6 pistons wont interchange with each other?

Interceptor398

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Re: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« Reply #4 on: January 11, 2017, 07:37:51 PM »
The only difference is the ring pin location.  If you use them in 4/6 cylinders the gap will ride the intake bridge.  Some have used them without issue but when the rings get worn there is more chance of catching a ring.

sprocket

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Re: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« Reply #5 on: January 14, 2017, 08:36:34 AM »
If you're worried about it take your pistons to a machine shop and have them move the pin location otherwise I've ran them for years in my race engines and never had any issues if you're still worried take your cylinders to a welding shop have them weld in more fill on the bridge then go through the process of die grinding & blending then send your cylinders off for new plating

JDmatt

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Re: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« Reply #6 on: January 15, 2017, 04:22:07 PM »
Picture looks like a standard SPI piston that lists for $39.95 each.
Matt
www.JDsleds.com - John Deere Snowmobiles
www.newbreedparts.com - New parts for John Deere & Kawasaki Snowmobiles

Teherr

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Re: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« Reply #7 on: January 16, 2017, 07:26:55 PM »
The pin placement is not an issue with running invader pistons in 4/6.  I have slid invader pistons in 4/6 cylinder and both pins ride on solid cylinder between the boost ports - they will not catch.

But, look at attached pic.  invader on left, 4/6 on right.  The top ring rides a bit higher on the invader.  Not sure if this would would make any difference. 
440 Invaders
440 LTD Monohead
Liquifire
80' 4/6 
Intruder Ice Oval Racer
74 El Tigre T7 Free Air
80 Polaris 440 TX
250 & 340 Enticers

sxrsist

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Re: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« Reply #8 on: January 20, 2017, 08:22:44 AM »
The pin placement is not an issue with running invader pistons in 4/6.  I have slid invader pistons in 4/6 cylinder and both pins ride on solid cylinder between the boost ports - they will not catch.

But, look at attached pic.  invader on left, 4/6 on right.  The top ring rides a bit higher on the invader.  Not sure if this would would make any difference.
I just have mine apart as we speak and the pin is located threw the intake port it scares me but what choice is there

Interceptor398

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Re: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« Reply #9 on: January 20, 2017, 09:02:20 AM »
Some run them that way with no issues.

sxrsist

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Re: New Invader 440 or 4/6 LTD Pistons and Rings, $65/set.
« Reply #10 on: January 22, 2017, 05:05:56 AM »
so what piston do i have in mine ? the bottom locater pin was at the 2  oclock position if exhauts port is 12:00