I can clearly see the 4 valve heads on other GS1100's - but the G,L,and K look the same as the 1000's. Am I correct that the 1100's were just a bigger bore but the heads are the same? I am asking due to a carburetor switch. Thank you!
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gs1000g and gs1100g
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gs1000g and gs1100g
I believe I know this answer from the service manuals - but want to be sure. Do the GS1000G's and the GS1100G's share the same 2 valve head?
I can clearly see the 4 valve heads on other GS1100's - but the G,L,and K look the same as the 1000's. Am I correct that the 1100's were just a bigger bore but the heads are the same? I am asking due to a carburetor switch. Thank you!Tags: None
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If they are the same head, I would suspect the cams to be different. The 1100 cam lobes may hold the valves open longer or wider to let a larger volume of air/ gasses pass through.
This is coming from a carpenter, not a mechanic, so it'll be interesting to hear what others say.Roger
Current rides
1983 GS 850G
2003 FJR 1300A
Gone but not forgotten 1985 Rebel 250, 1991 XT225, 2004 KLR650, 1981 GS850G, 1982 GS1100GL, 2002 DL1000, 2005 KLR650, 2003 KLX400
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In comparing the part numbers on Alpha Sports website, I noticed the head is in fact different, but to my surprise the cams were used in a few different engines.
11100-49830
- 1980 SUZUKI GS1000ET - CYLINDER HEAD
- 1980 SUZUKI GS1000GLT - CYLINDER HEAD
- 1980 SUZUKI GS1000GT - CYLINDER HEAD
- 1980 SUZUKI GS1000ST - CYLINDER HEAD
- 1981 SUZUKI GS1000GLX - CYLINDER HEAD
- 1981 SUZUKI GS1000GX - CYLINDER HEAD
11100-49020
- 1982 GS1100G - CYLINDER HEAD
- 1982 SUZUKI GS1100GKZ (Touring) - CYLINDER HEAD
- 1982 SUZUKI GS1100GLZ - CYLINDER HEAD
intake cam 12711-49001
- 1980 SUZUKI GS1000GLT - CAM SHAFT - VALVE
- 1980 SUZUKI GS1000GT - CAM SHAFT-VALVE
- 1981 SUZUKI GS1000GLX - CAM SHAFT - VALVE
- 1981 SUZUKI GS1000GX - CAM SHAFT-VALVE
- 1982 GS1100G - CAM SHAFT VALVE
- 1982 SUZUKI GS1100GKZ (Touring) - CAM SHAFT-VALVE
- 1982 SUZUKI GS1100GLZ - CAM SHAFT-VALVE
- 1983 SUZUKI GS1100GD - CAM SHAFT VALVE
- 1983 SUZUKI GS1100GKD - CAM SHAFT-VALVE
- 1983 SUZUKI GS1100GLD - CAM SHAFT-VALVE
- 1984 SUZUKI GS1100GKE Touring - CAM SHAFT - VALVE
Exhaust cam 12721-49001
- 1980 SUZUKI GS1000GLT - CAM SHAFT - VALVE
- 1980 SUZUKI GS1000GT - CAM SHAFT-VALVE
- 1980 SUZUKI GS850GT - CAM SHAFT-VALVE
- 1981 SUZUKI GS1000GLX - CAM SHAFT - VALVE
- 1981 SUZUKI GS1000GX - CAM SHAFT-VALVE
- 1981 SUZUKI GS850GX - CAM SHAFT-VALVE
- 1982 GS1100G - CAM SHAFT VALVE
- 1982 SUZUKI GS1100GKZ (Touring) - CAM SHAFT-VALVE
- 1982 SUZUKI GS1100GLZ - CAM SHAFT-VALVE
- 1982 SUZUKI GS850GLZ - CAM SHAFT - VALVE
- 1982 SUZUKI GS850GZ - CAM SHAFT-VALVE
- 1983 SUZUKI GS1100GD - CAM SHAFT VALVE
- 1983 SUZUKI GS1100GKD - CAM SHAFT-VALVE
- 1983 SUZUKI GS1100GLD - CAM SHAFT-VALVE
- 1983 SUZUKI GS850GD - CAM SHAFT-VALVE
- 1983 SUZUKI GS850GLD - CAM SHAFT - VALVE
- 1984 SUZUKI GS1100GKE Touring - CAM SHAFT - VALVE
I don't understand how this works. I thought maybe since the cams were the same, the valves would be a different diameter, but that's not the case either. Although, this did exclude the 850's.
Intake valve 12911-49020
- 1978 SUZUKI GS1000C & EC - CAM SHAFT - VALVE
- 1979 SUZUKI GS1000LN - CAM SHAFT - VALVE
- 1979 SUZUKI GS1000N & EN - CAM SHAFT - VALVE
- 1979 SUZUKI GS1000SN - CAM SHAFT - VALVE
- 1980 SUZUKI GS1000ET - CAM SHAFT - VALVE
- 1980 SUZUKI GS1000GLT - CAM SHAFT - VALVE
- 1980 SUZUKI GS1000GT - CAM SHAFT-VALVE
- 1980 SUZUKI GS1000ST - CAM SHAFT - VALVE
- 1981 SUZUKI GS1000GLX - CAM SHAFT - VALVE
- 1981 SUZUKI GS1000GX - CAM SHAFT-VALVE
- 1982 GS1100G - CAM SHAFT VALVE
- 1982 SUZUKI GS1100GKZ (Touring) - CAM SHAFT-VALVE
- 1982 SUZUKI GS1100GLZ - CAM SHAFT-VALVE
- 1983 SUZUKI GS1100GD - CAM SHAFT VALVE
- 1983 SUZUKI GS1100GKD - CAM SHAFT-VALVE
- 1983 SUZUKI GS1100GLD - CAM SHAFT-VALVE
- 1984 SUZUKI GS1100GKE Touring - CAM SHAFT - VALVE
Exhaust valve 12912-49020
- 1978 SUZUKI GS1000C & EC - CAM SHAFT - VALVE
- 1979 SUZUKI GS1000LN - CAM SHAFT - VALVE
- 1979 SUZUKI GS1000N & EN - CAM SHAFT - VALVE
- 1979 SUZUKI GS1000SN - CAM SHAFT - VALVE
- 1980 SUZUKI GS1000ET - CAM SHAFT - VALVE
- 1980 SUZUKI GS1000GLT - CAM SHAFT - VALVE
- 1980 SUZUKI GS1000GT - CAM SHAFT-VALVE
- 1980 SUZUKI GS1000ST - CAM SHAFT - VALVE
- 1981 SUZUKI GS1000GLX - CAM SHAFT - VALVE
- 1981 SUZUKI GS1000GX - CAM SHAFT-VALVE
- 1982 GS1100G - CAM SHAFT VALVE
- 1982 SUZUKI GS1100GKZ (Touring) - CAM SHAFT-VALVE
- 1982 SUZUKI GS1100GLZ - CAM SHAFT-VALVE
- 1983 SUZUKI GS1100GD - CAM SHAFT VALVE
- 1983 SUZUKI GS1100GKD - CAM SHAFT-VALVE
- 1983 SUZUKI GS1100GLD - CAM SHAFT-VALVE
- 1984 SUZUKI GS1100GKE Touring - CAM SHAFT - VALVE
Roger
Current rides
1983 GS 850G
2003 FJR 1300A
Gone but not forgotten 1985 Rebel 250, 1991 XT225, 2004 KLR650, 1981 GS850G, 1982 GS1100GL, 2002 DL1000, 2005 KLR650, 2003 KLX400
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Combustion chambers are smaller on a 1000. Using the 1000 head on an 1100 will yield nearly a full point increase in compression. Conversely a 1100 head will lower the squeeze on a 1000.
The 1100 jugs with a 1000 head is a good candidate for performance cams if you can afford them. You'll make the most of longer duration valve openings.1981 GS650G , all the bike you need
1980 GS1000G Power corrupts, and absolute power corrupts absolutely
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