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Home Forum Polaris
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800 Triple into XC Gen II Chassis
- Engine Swap Possible
started by scorpionlover
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February 4th 2008 at 9:29 AM
[ Modified February 4th 2008 at 9:59 AM
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scorpionlover
Junior Member
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270 Posts 
Group: Members
Member Since: August 17th 2007
Location: Shell Rock, IA, USA
Current Sled: 98 XC600
Miles Last Season: 700
Miles This Season: 900
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I have a 99 XC700 SP Gen II chassis only with no engine. Has anyone here done a swap and put an 800 Triple Storm or XCR800 engine into one. If so how much work was it. Looks like there is plenty of room in there for pipes and all, but if it is impossible i won't even consider it. I am pretty sure in 2000 and 2001 Polaris made an XCR800 in the gen II body so it been done the factory way. Thanks in advance
Sleds currently owned. Scorpions- 73 Stinger ET290,74 Super Stinger 340,2-75 340 Whips, 75 400 Whip, 75 440 Whip, 76 Lil Whip, 79 440 Whip, 2-79 440 TK Whip, 2-1980 440 Whips and a bunch of parts sleds. 74 Northway Interceptor, 73 Rupp 25hp Sport, 77 Sno Jet Astro 340. Polaris Sleds- 1976 340 Colt, 1977 340 Colt, 1985 Indy 400 SKS, 1994 Storm, 1995 XLT Special, 1997 XLT RMK, 1998 XC600, 1999 XC700SP- 136" and 2002 600 RMK.
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February 4th 2008 at 9:56 AM
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for the xcr/ultra engine swap you just need the motor. pipes, straps air box and carbs. should just be a simple drop in.
nothing goes like 3 holes!!
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February 4th 2008 at 10:01 AM
[ Modified February 4th 2008 at 10:07 AM
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the_hog
Builder/Owner of a real MOD sled!
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1575 Posts 
Group: Members
Member Since: November 12th 2003
Location: Eastern MT/Western ND, USA
Current Sled: CMX/PSI Mod, 01 SRX
Miles Last Season: 180
Miles This Season: 1 so far
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I did a Indy RXL/650 based motor into a chassis with a GenII twin bulkhead. Should be about the same for a Storm or XCR motor. First get a set of 2000+ XCR 800 motor straps. The front mag side motor mount will need to be moved, as you can see in this picture.
Thats about the biggest hurdle I had. My center to center came out almost perfect, just needed to shim the rear motor mounts alittle to get it spot on after torquing the engine down.
Or if you want to go another way you could get a twin motor plate and if it is wide enough redrill the mount holes for the motor and use that.
I think it should be a pretty staight forward swap as long as you have the wireharness for the Storm or XCR motor. If you use an XCR 800 engine it will be easy as far as pipes go just get a set from a 2000+ motor since they were in the GenII chassis. If you use the Storm motor the pipes may take alittle massaging. My SLP pretty much dropped right in, just a few little thing that I had to fix. There will be little things that pop up when doing a swap, with mine there was. But major thing was that motor mount for me.
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February 4th 2008 at 7:43 PM
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xc600rmk
Friend of Fast
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1508 Posts
Group: Members
Member Since: March 27th 2007
Location: Albion, NY, USA
Current Sled: 98 XC600/RMK,98 XCR440sks
Miles Last Season: 2,500+ ea
Miles This Season: 3
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gen2 is the same base as a wedge so a tripple should drop in with madcows recommendations
*98 XC600 and some RMK add ons
*98 XCR440 and some SKS add ons
*Some old 70s Chappral Firebird with a 1 lunger Fuji,15mph downhill on ice with a 14 mph tailwind,AND ITS FOR SALE FOR SALE!!!
*new edition to the fam.83 Polaris Star 250.
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February 5th 2008 at 8:04 AM
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scorpionlover
Junior Member
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270 Posts
Group: Members
Member Since: August 17th 2007
Location: Shell Rock, IA, USA
Current Sled: 98 XC600
Miles Last Season: 700
Miles This Season: 900
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Thanks for all the help guys. I will take all of your ideas into consideration. Now all I have to do is find the engine. I would put it back to stock, but everyone is asking to much for their twins and they are not worth what they are asking for them at least not to me.
Sleds currently owned. Scorpions- 73 Stinger ET290,74 Super Stinger 340,2-75 340 Whips, 75 400 Whip, 75 440 Whip, 76 Lil Whip, 79 440 Whip, 2-79 440 TK Whip, 2-1980 440 Whips and a bunch of parts sleds. 74 Northway Interceptor, 73 Rupp 25hp Sport, 77 Sno Jet Astro 340. Polaris Sleds- 1976 340 Colt, 1977 340 Colt, 1985 Indy 400 SKS, 1994 Storm, 1995 XLT Special, 1997 XLT RMK, 1998 XC600, 1999 XC700SP- 136" and 2002 600 RMK.
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February 5th 2008 at 9:45 AM
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MX86
Powder Rider
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1263 Posts
Group: Members
Member Since: March 1st 2007
Location: Nashwauk, Minnesota, USA
Current Sled: 1999 polaris 700 SKS mod
Miles Last Season: 1,200
Miles This Season: not enough
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didn't polaris make the XCR800 in the Gen 2 chassis the last few years it was in production?
1999 Polaris 700 sks: Hymark heads, SLP pipe/silencer, Vforce 3 reeds, EPI clutch kit, Rox 5-7" adjustable Riser, Powermadd handguards.
2000 yz250: Vforce 3 reeds, KYB suspension valved by Race Tech, boyesen supercooler aftermarket water pump and cover, Billet aluminum clutch basket, maxxis tires, Tag T2 handlebars.
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February 5th 2008 at 11:12 AM
[ Modified February 5th 2008 at 11:17 AM
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scorpionlover
Junior Member
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270 Posts
Group: Members
Member Since: August 17th 2007
Location: Shell Rock, IA, USA
Current Sled: 98 XC600
Miles Last Season: 700
Miles This Season: 900
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