GS750 carb and head options. advice / opinions

[Guest]

OK... I've been offered a set of reconditioned vm28's of a gs1000s for about the same money I would need to be spending to get my rank 26's back fighting fit.

I'm also looking at a high comp 844 piston kit, head work and a more open pipe anyways so these on paper would seem a steal.

Question is do the 28's squeeze onto the 26's boots? As I'm looking at flowing the head and upping the valve sizes I'm thinking the 28's boots might be better. In which case do the mounting lugs on the 28's boots match those of the 26's?

Better yet couldn't I just slip an early 1000 head on there and get the higher flow rates at lower cost? I know the stud patterns match. and so the head oil feeds should line up right? So where's the catch? There has to be one.

Thanks in advance
jo

[tkent02]

Better yet couldn't I just slip an early 1000 head on there and get the higher flow rates at lower cost?

Not without swapping the rest of the engine… But we've been there before.

[JAG]

Not without swapping the rest of the engine… But we've been there before.

We have and it ain't happening. Totally different engine characteristics and... Oh yeah.... I have a 750 lump.

[tkent02]

I know, I remember.

Meanwhile, we just put another 1000 into a 750, man that makes a nice motorcycle.