Problems with 268xp to 272xp swap.

[Wagnerwerks]

Around 2 yrs ago I found this 268xp crankcase in my local scrap pile for around 2 bucks so I snagged it. Since then I've been scrounging parts to build it. I started with a farmertec 272 top end, but the quality was so bad I didn't even think the Intake would seal on the flange. I recently purchased a ks 272 jug. When I went to install it I found the flange extension was to large to fit into the case. I've searched for the same issue online but haven't found anything. Anyone run I to this?

 

[DSS]

No. Pics?

 

[DSS]

You sure it's a 268 case?

 

[Wagnerwerks]

Sure on the bottom end... I bought the cylinder from a reputable seller and it looks right.
The aftermarket jug fits fine...


So as I'm taking pics I see the issue. Not a 272 cylinder?? Looks way too long a stroke.

 

[DSS]

Well there's your problem

 

[DSS]

Whatever it is its not 272. Round intake?

 

[Wagnerwerks]

Yeah.... now it makes sense. What the heck is this one?

 

[Wagnerwerks]

52mm and it looks to be around 6mm more stroke than 272.

 

[DSS]

Show the intake and exhaust

 

[Wagnerwerks]

Exhaust with a 272 gasket below it

 

[Wagnerwerks]

I'm thinking maybe a 280s jug.

 

[Wagnerwerks]

Solved ..
281

 

[psuiewalsh]

Good problem to have

 

[Wagnerwerks]

Lol. If I had a 281 that needs a jug. Wanna trade for a 272?