What is the difference between the viper/srx motor & the sxr/vmax motor?

[hereismylife]

I am just wondering if I want to replace my 700 sxr motor with a viper/srx motor what would I need?
If I am right I would need the exhaust,pv,cyc heads,and the carbs

Did I miss something?

 

[Sxr700Bandit]

To change from a non powervalve powerplant to a powervalve type powerplant you will need:
complete motor(red head v.s powervalve parts not comatible),
pipes,
CDI,
motor mounts(I think),
pv controller,
the carbs will innerchange, not sure abut the airbox. and I'm sure that I missed a few things. T

 

[Yama49601]

Not to mention that it doesn't just drop right in either. You have to do some modifications to the belly pan to even get it in there.

 

[hereismylife]

So the block is definetly different. I thought I could build from the block up. I was thinking on making this my next project but I do not know if it is worth it. I was thinking on getting as much as I can out of my sxr with a viper motor.

 

[tomseal6]

The viper and SRX cylinder and case is very similar. both have power valves with the vioer having a little better porting than the SRX. The viper crank is lighter than the SRX. Viper has a single mono head and single exhaust where the SRX has individual heads per cylinder and triple pipes.

The SX SXR Motor is a completely differnt animal. Non powervalved and no parts will interchange with the other 2

 

[hereismylife]

Go figure. That is why no one converts there sx to a srx/viper sleeper. Thanks for the info.

 

[Madmatt]

Buy mine

Joe, why don't you just sell that thing and come up here an buy one of my sleds?

Madmatt

 

[hereismylife]

I don't remember you having a viper. I did see you had one in 05 from the threads you started. I thought last year you had a phazer & a srx?

 

[Madmatt]

Yes, I do!

I guess you only saw the SRX and the Phazer. Here is a photo of the viper. I believe this is set up just the way you would want it!

Madmatt

 

[hereismylife]

That is a nice sled. I think you were getting work done on it when I was up. never did see it in person

 

[tomseal6]

If Im not mistaking, I saw Matts viper motor sitting in mrvipers shop back in the fall of 05 getting some serious work done to it.

 

[Madmatt]

Different motor

The viper motor in Don's shop was my 780. This one is a stocker. Different sleds alltogether. This sled has been my daily driver for two years.

Madmatt

 

[SpartaSXr]

there is an SXR-X for sale in the classifieds. that is the first I have ever seen with an SRX motor in an SXr and it is a Hauck custom. the hood clearance with pipes is also an issue.