80-750 TSCC/80-1100 TSCC the same top?

[Newbee]

I am wondering if the top end of a 1980 4 valve 750 and a 1980 4 valve 1100 are the same...I am thinking not? I was going to save some engine parts for backup for the 1100. What if anything will interchange? I noticed my 1982 750 4 valve top end is different than the my 1980 750 4 valve so I guess there are two different versions of the 750?

[blowerbike]

80-82 750 16v.E/L same engine.
80-81 had 20 bolt valve cover/82 had 24 bolt.
i pretty sure on this.
750/1100 16v. looks the same but very few parts will interchange.
cams/oil pump gears/oil pump/valve covers ect...

[Newbee]

I remember reading about oil pump?

If I recall correctly? Puting a 750 oil pump in a 1100 was a HIPO mod people use to do?

[blowerbike]

just the 2 pump gears.
they increase the volume of oil moved by spinning the 1100 pump faster.

[rapidray]

The bore spacing is the same between the 750 & 1100 but different deck heights & different stroke. The heads will interchange but the 750 bore is too small & the 1100 valves will hit the cylinders. Trans will interchange also. Ray.

[blowerbike]

The bore spacing is the same between the 750 & 1100 but different deck heights & different stroke. The heads will interchange but the 750 bore is too small & the 1100 valves will hit the cylinders. Trans will interchange also. Ray.

i recall the trans looking differant/like the 750 didnt have dogs and slots..
more like dogs and dogs or something.
im sure they would fit but i would think the 750 may be weeker.
it also seems like the 750 forks was differant to.
its been years...who knows for sure.