Need help identifying crank!!!

[Cooper0809]

Been a long time since I’ve been on the 2 stroke side! Wow! For the life of me I can’t remember what crank this is! Either came out of a viper, srx or vmax. If memory is right, it came out of a vmax engine. But still not sure. Can anybody identify this crank?

 

[pete_man26]

porkchop counter balance is a viper crank, round counter balance is a SRX or Vmax.

 

[Cooper0809]

What’s a pork chop counter balance? Lol

 

[Maim]

that is the cut by the connecting rod lower end. only the sx vipers had the cut like the pic. the srx oned where a full circle.

 

[mrviper700]

the crank pictured is a red head 600/700 crankshaft!

 

[brethren]

Here is one out of a 2003 Viper.

Mr. Viper this is the one the re builders got the phasing wrong. If you remember you were the one that helped me find the problem a few years back. I know I've said it a million times but thanks again. I'm still baffled on how the re builders could have made that kind of mistake.

Sent from my VTR-L09 using Tapatalk

 

[sx viper]

Can someone tell me what crank this is, there is DF numbers. Someone said it is SRX600/700 1998-1999, but is it same?

 

[mrviper700]

View attachment 64721

Can someone tell me what crank this is, there is DF numbers. Someone said it is SRX600/700 1998-1999, but is it same?

that crank is a 2000-02 srx crank, unless someone has slipped different outer crank bearings onto a 98/99 crank, as they are 2 pc outer pto crank bearings on a 98/99. the crank pictured will also fit a viper engine case.

 

[sx viper]

that crank is a 2000-02 srx crank, unless someone has slipped different outer crank bearings onto a 98/99 crank, as they are 2 pc outer pto crank bearings on a 98/99. the crank pictured will also fit a viper engine case.

I'm pretty sure that outer bearings are changed, old ones are in box. I must check it. But if it is 98/99 crank, is there different stroke? Because SRX 600 is 59.6mm stroke right? and bore is 65mm, it makes 197.99cc per cylinder, means 593,97cc?? And then 98-99 SRX 700 would make 668,58cc or does it use bigger bore on those years? Someone just said that crank is same on those years 98-99(SRX 600 and 700), but i think you might know better? 00-02 SRX use that 62mm stroke crank and 69mm piston and it makes 695,52cc like viper??

 

[mrviper700]

all srx 600 and 700 are the same stroke from 1998-2002, viper same stroke as well.

 

[sx viper]

all srx 600 and 700 are the same stroke from 1998-2002, viper same stroke as well.

Thanks for information!