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I have a sportster titled as a 79. The vin matches on the title
Originally Posted by Priest78
How do I determine what engine year and size I have with my custom sporty by the engine case number? I know the VIN on the frame is suppose to be able to tell you but how do I figure it out from the engine itself?
the vin title and frame all have the same number
3A36133h6
I noticed something was weird cause it has mechanical
Brakes old style oil tank and the primary chain adjuster
is inside the primay case
So i looked up the vin and it has h6 in wich to me say its a 76
anyone ever hear of this
if your engine number is not in the same format as in whs's reply, your engine may also be custom, in which case post some photos so we can take a close look at it (the engine, not the bike, although we would like that too!)
Here is one VIN I cant find anything on, and help be appreciated. Thanks
Originally Posted by grbrown
If your engine number is not in the same format as in WHS's reply, your engine may also be custom, in which case post some photos so we can take a close look at it (the engine, not the bike, although we would like that too!)
Can you help me please I have a Harley Davidson fatboy with a evo motor serial number Ab02N092. I cant figure out if its original or not or who made it
Originally Posted by grbrown
Hi from the UK and welcome to HDF.
Interesting photos! Hopefully someone will call by and identify it accurately, but here is a starter.
The number 24584-75 cast into the casing suggests the casting design originates in 1975, although that won't be its finished part number. From the stamped number 779-079-070 we can deduce from this website that the engine is an XL1000, made in 1979. The MICH number could be a factory serial number, but I am not certain about that. Your engine was made before the current VIN system was introduced, which standardised the format Internationally.
the vin title and frame all have the same number
3A36133h6
I noticed something was weird cause it has mechanical
Brakes old style oil tank and the primary chain adjuster
is inside the primay case
So i looked up the vin and it has h6 in wich to me say its a 76
anyone ever hear of this
Correct for a 1976 XLH, 3A =XLH (4A=XLCH) and H6 = 1976...simple **** back then!!
And...Drum rear brake until After 1978!!
As an aside...tho Ironheads have their own Sound...especially with Drag Pipes (being an Iron Motor) Mine always ran best with fairly free flowing Mufflers....Always..
Last edited by Racepres; Oct 11, 2024 at 12:49 PM.
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I have a sportster titled as a 79. The vin matches on the title
