Looking for advice

FarmerTimBob

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• Jan 3, 2018

• #1

Got a 06 M7. Needs a new top end. Question is do I look at big bores or just put in new stock top end and upgrade to something newer? I almost have it the way I want it, that's my dilemma. Working with a somewhat limited budget as I only get out west once or twice a year.

 

M

mk2g60

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• Jan 4, 2018

• #2

Think you answered your own question, your on a budget so leave it stock. You go big bore you need cylinders, pistons, head, fuel controller, clutching, you'll also want a y pipe and exhaust pipe, egt's. It's an easy $3-4K

 

S

Sledbrain2

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• Jan 4, 2018

• #3

If you leave it stock I have an RKT head for sale. Improves throttle response and Hp, 5 to 7.

https://www.ebay.com/itm/273001124627?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649

 

89sandman

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• Jan 4, 2018

• #4

Big bore would cost more than the sled...

 

Ddub

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• Jan 4, 2018

• #5

I'd look for a good used big bore. They come up often. Nice looking ride!

 

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mbcat

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• Jan 5, 2018

• #6

Need advise

Rktek big bore with stocexhaust, durable as stock and big increase!

 

Hardass

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• Jan 5, 2018

• #7

i see you have the right size hammer

 

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sonic reducer

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• Jan 14, 2018

• #8

what running boards are those? and rear tunnel. sorry for off topic.

 

FarmerTimBob

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• Jan 19, 2018

• #9

sonic reducer said:

what running boards are those? and rear tunnel. sorry for off topic.

Click to expand...

Boards are B&M Fab and the tunnel section is from a 09

 

mountaincat 800

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• Jan 19, 2018

• #10

So what did you decide?

 

FarmerTimBob

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• Jan 20, 2018

• #11

mountaincat 800 said:

So what did you decide?

Click to expand...

I'm thinking just put new stock top end and just ride it. Maybe do some clutching and gearing. If I went more often I'd probly do something different.

 

mountaincat 800

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• Jan 22, 2018

• #12

If you need the stock head I have one available that has RKT patented combustion chamber and milled to 14 to 1. Really wakes that 700 up. No fuel controller needed and runs 91 octane. If interested PM me. I can send pictures.

 

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sumtinwong

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• Jan 23, 2018

• #13

if you are going to be keeping the sled for a long period mod it and don't look at what it is worth you can mod a brand-new sled a little or a lot and never get out what you put in it... not even the base price of what it was stock if you dump 5,000 in mods you will loose that + ... even if you sell it the same year! if you want more that it has stock and you are going to keep it make it what you want and enjoy every ride! if you don't get to ride a lot than every ride is precious and should be all you want it to be! when the day is dun all we have is memories...smiles....and the thought's of the next ride! if you are looking at resell than buy it broke fix it ride it and sell it for a profit before its broke again just my 2c any how. good luck

 

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Old & slow

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• Jan 27, 2018

• #14

Another option to consider is looking for a used 800 cat engine. Do some research and see if the 800 fits the 700 case,just swap top ends. I know the part number for the connecting rod is the same. Or drop in the complete engine, reliable big bore for a decent price either way.

 

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Firetrail

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Sioux Falls, South Dakota

• Jan 27, 2018

• #15

Engine

I am not sure if you have ever ridden a sled with an early 800 engine. I have ownwed an 07, 09 and 10 M8 as well as a 700 M7. The 700 feels like a much more powerful engine and if you were to put say an 07 800 in your sled I think you would be sorry. They were quite anemic engines until Cat made some changes. The HO motor was quite a lot better. If you were considering an engine swap you would need to find a 10 or 11 HO.

 

Last edited: Jan 27, 2018

Stack

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• Jan 28, 2018

• #16

Stock top end with OEM components. When I had my M7 dialed in it was an impressive sled at the time, I’m at low elevation.

-Stack