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Discussion Starter #1
guys, I have a chance to get a 998 engine computer/ etc for $400. Was wondering if I could swap engines with my monster
 

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Based on what Alex O has said, yes, the engine will fit in the frame. Now there's the swingarm issue and then what to do with electrics, exhaust, etc. Alex will probably chime in soon-ish. :) If ya don't get it, please tell me so I can buy it. THAT may eventually end up in Pongo. Who knows? :) :p ;D
 
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Discussion Starter #3
the reason the s4 uses the st4's engine is because the heads are shorter than the "regular" 916 motor. same reasoning why the new s4R uses (mostly) the same motor as the st4S. head clearance. that said, i don't know enough about the dimmensions of the testastretta head. if it can clear the bottom of the gastank, and you don't have wheel/head contact if your forks bottom out, it'll fit!!!
but as chris mentioned, there's the need for a new swingarm, new exhaust, relocating the battery, rethinking the airbox, etc...

PLEASE contact me on where you found this motor!! if chris has "dibs" if you don't want to go through with this awesome (but rather involved) project, i'd love to have a line on a super-cheap motor! (this is assuming it's in good running condition?!)....

cheers.
 

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What a bunch of vultures!


Do you think it would fit in an ST2? Can I have third dibs?

;D ;D ;D
 

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You guys crack me up :)

Remember, this is the same guy who claimed his 620 did 140 mph, and now that he has put 120,000 miles on his S4...I'm suprised he didn't say it was an "R" engine.

So forget it.

Anyway, the engine is mine, mine, mineeeee...my precious...
 

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Chris and Strati covered it pretty well. It will fit, it might hit, and it can be done if you are talented or wealthy.
 

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Hope y'all don't burn your hands when you pick up that motor...and don't get too attached to it, the rightful owner may be coming by your house at any time. Accompanied by a really serious dude with a gun and a shiny metal badge.
 

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Well, I just couldn't resist pointing out the obvious...

No 998 motor is going to legitimately change hands for $400.
I've seen a used ST4 motor go for over $3k.
 
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Discussion Starter #13
its actually from a salvage. My friend low sided, and the insurance decided to scrap it. He bought it back dirt DIRT cheap.

Heck, my last m620, with a dented tank and a scraped up front fender only ran me $1.9K :)
 

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Rock on, newbie.
Have fun, and post pictures when you're done.
 
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Discussion Starter #15
this sis going to be a long STRATI type of project hehehe

Its gonna take me some thinking....I'll definately be posting pics as well, as a how to guide.... lol hopefully I can pull this off with everyone'shelp here./......heck, I just learned how to swap plugs from you guys LOL
 
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