Differences between '96 670 an '99 670 X

[Toy4Fun]

I was wondering if the main differences between the 1996 Summit 670 and a 1999 Summit X 670 are the cylinder porting and heads? I own a '96 and was given a 1999 with low compression that I'm thinking about rebuilding. I'm wondering if it would be worth putting the head/cylinders and possibly magneto/flywheel on my lower end to gain the hp or just swap motors? Is it a noticeable upgrade?

 

[magnet]

I was wondering if the main differences between the 1996 Summit 670 and a 1999 Summit X 670 are the cylinder porting and heads? I own a '96 and was given a 1999 with low compression that I'm thinking about rebuilding. I'm wondering if it would be worth putting the head/cylinders and possibly magneto/flywheel on my lower end to gain the hp or just swap motors? Is it a noticeable upgrade?

swap motors. the x model had waayyy more jam than a nonx. to make a nonx meet the x power/torque it needed alot of work done to it. the entire engine is different on these sleds cant even use pistons back and forth.

 

[Bogger]

you were GIVEN a 99x ?????????

Nice.... Rebuild the X... cost me about $700 to do mine last year ...

 

[Summitric]

i was wondering if the main differences between the 1996 summit 670 and a 1999 summit x 670 are the cylinder porting and heads? I own a '96 and was given a 1999 with low compression that i'm thinking about rebuilding. I'm wondering if it would be worth putting the head/cylinders and possibly magneto/flywheel on my lower end to gain the hp or just swap motors? Is it a noticeable upgrade?

you'll need a different pipe and can, manifold, intake box(or just use air filter pods), and i believe the motor mount.....good luck.

 

[Toy4Fun]

Fortunately I got an almost complete Summit x, the tunnel was thrashed and the track and skid were used for another project so I have the exhaust and can, carbs, intake etc.