OzVMX Forum
Marque Remarks => Suzuki => Topic started by: JC on July 17, 2008, 12:23:49 pm
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Can anyone tell me if the cams are interchangeable on the 370 & 400 SP/DR's of late 70's-early 80's?
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Kawboy
Best to use the DR 400 top end as they are a straight bolt on .
Make sure you have cleaned out the oil gallery & buy a new oil filter as they have a bad habbit of chewing out the head cam bearings.
370 motor also accepts the 400 barrel -head n topend ;)
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Thanks Oldy,
So the cams are not interchangeable?
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I've got tonnes of SP/DR370 parts to get rid of................ ;)
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Tony what's the heads like at the cam bearings ???
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From memory, I think they're ok, Stewy. But when I'm home on Saturday, I'll check it out.
that stuff will go seriously cheap. Demand for SP370's isn't that great.
Yeah, I know........... I can't believe it either................ :D
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that motor has never travelled further in its life than it has in the last 3 months............. hehee
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Tony if the heads and rocker gear are OK- I'll take one or more IF Kawa doesn't want em .
Believe or not the I can get the SP 370 to rev harder than the DR 400 ::)
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I'll check out what there over the weekend.
There's lots of motor bits I reckon.
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370 carb has points on end, 400 doesn't.
I think the reason for the 370 revving better is the carb. I used to think it was the ignition [400 has black box advance] but since using a 370 carb .....
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Both running the same carb ( and jets ) I would tend to agree it's in the points setting .
The 370 just rev harder .
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I have had a vast improvement with the earlier carb but other than that no comparison so thanks. When they came out the sp was a fair bit faster through the speed trap
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Further to that back in the 80s a friendly electronics mate said the black box was dead crude and just came on full advance about 3 to 3.5 thousand revs. That being so a modern more sophisticated device might have more tuning effect than anything else!