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Message started by Myoman on 08/23/11 at 06:08:09

Title: LS 400 engine upgrade
Post by Myoman on 08/23/11 at 06:08:09

Hi All

This is my first post so take it easy on me! I have a 1987 Suzuki Savage LS400 and wanted to know if I can replace the engine with a 650cc one easily?

Thanks

Title: Re: LS 400 engine upgrade
Post by Bubba on 08/23/11 at 06:52:19

Not familiar w/ the 400 but I would imagine you'd have to replace all the electrics also...

Title: Re: LS 400 engine upgrade
Post by verslagen1 on 08/23/11 at 07:22:36

I don't think they sell the 400 where the 650 lives and vice versa.
So, not many are going to be able to give acurate advice.

Now, simply put, since the stroke is different, I suppose the height of the engine is different by the same amount.

Title: Re: LS 400 engine upgrade
Post by ralfyguy on 08/23/11 at 10:30:40

I wonder if there is a difference in the camshafts of both engines.

Title: Re: LS 400 engine upgrade
Post by dasch on 08/23/11 at 11:43:01

My guess is - relatively easy swap. But don't buy a 650 engine based on that. Never seen a 400 either.

Title: Re: LS 400 engine upgrade
Post by babyhog on 08/23/11 at 13:11:42

Looks about the same...

http://www.motorcyclespecs.co.za/model/suzu/suzuki_ls400_savage%2087.htm

http://www.motorcyclespecs.co.za/Gallery%20%20A/Suzuki%20LS%20400%20Savage%2087%20%201.jpg

Found these specs here: http://www.suzukicycles.org/1980-1989/1987b.shtml

LS 400 Savage 1987
Overall Length: 2,195 mm (86.4 in)
Overall Width: 690 mm (27.2 in)
Overall Height: 1,080 mm (42.5 in)
Wheelbase: 1,480 mm (58.3 in)
Dry Weight: 159 kg (350 lbs)
Engine type: Air-cooled 396 cc single cylinder, SOHC, 4 valves. 24 hp/ 7,000 rpm, 2.7 kg-m/ 4,000 rpm.

Title: Re: LS 400 engine upgrade
Post by arteacher on 08/23/11 at 16:06:53

Becha all it is is a different jug and carb. If you could find the bore and stroke specs you'd know for sure.

Title: Re: LS 400 engine upgrade
Post by verslagen1 on 08/23/11 at 16:25:28

bore and stroke somewhere between 74 and 80 if i remember correctly.

Title: Re: LS 400 engine upgrade
Post by verslagen1 on 08/23/11 at 16:36:28

555246080B0E4D530C0E0E0C3E0 wrote:

I've done a search and it seams I was wrong, the 400 is 88 bore and 65 stroke.
Clive W :)

Title: Re: LS 400 engine upgrade
Post by BurnPgh on 08/24/11 at 04:00:03

24 hp for the 400...27 for the 650...why bother?

Title: Re: LS 400 engine upgrade
Post by ralfyguy on 08/24/11 at 04:57:51

6F585F437D4A452D0 wrote:

24 hp for the 400...27 for the 650...why bother?

Torque

Title: Re: LS 400 engine upgrade
Post by dasch on 08/24/11 at 06:01:54

and sound ;)

Title: Re: LS 400 engine upgrade
Post by EJID on 08/24/11 at 07:45:21

and bragging rights? :-?

Title: Re: LS 400 engine upgrade
Post by Iono on 08/25/11 at 00:24:03

I"m not sure if this is chrome covers or what worth a shot to send them a message asking http://www.chromeworld.com/GroupDetails/SubGroupResults.aspx?gid={21adfa9c-0cf7-4c60-a62b-a418942fc318}&SearchType=_GROUP_SEARCH&GroupName=Suzuki+Savage+650+Engine+and+Drive+Shaft&