750 oil gears for a GS1000G

[Einar J Skog]

Hi

Wondering what gears to lay my hands on.
Is it the old 8 valve 750, or...

Anybody????

[SqDancerLynn1]

My understanding is you need the 4 valve 750 gears

[RobGS850L]

4 valve oil gears are the higher volume ones. The question I have is why switch on your 1000G model? 4 valve models enjoy the higher volume because the bearings are the shell type and have tighter clearances requiring higher pressure to keep a cushion of oil between the bearing surfaces. Early 4 valve engines like the higher pressure gears because when running higher lift cams the valve train takes a strain and requires more oil. 2 valve engines with the shim buckets live in a pool of oil and don't really need the extra volume. Just my .02.

[madjack57754]

APE stocks what you need. Buying new is a whole lot easier that scrounging around trying to find the right gears. The high performance oil pump gears for the 1100s that the catalogs sell, are just 750 gears.

[renobruce]

So with the mods I am doing on my 1000 (1085 pistons, ported head, aftermarket cams), should I consider the 750 gears, or would it just be a waste?