Page 1 of 1
Lower cylinder positions - 1957 Sportster in Gallery
Posted:
Thu Nov 15, 2018 9:22 pmby GaryM2
Please look at the picture of the white and blue 1957 Sportster in the gallery.
http://www.harleykmodel.com/fullsize.ht ... =1600x1200http://www.harleykmodel.com/fullsize.ht ... =1600x1200Are the lower cylinder heads on backwards? See the base of the heads for detail.
shouldn't the stampings be on the right side of the engine and the part numbers be on the left side? Was this a mistake?
Re: Lower cylinder positions - 1957 Sportster in Gallery
Posted:
Thu Nov 15, 2018 10:37 pmby strong56KH
No, the castings were opposite on the 57 XL cylinder bases. Not sure if this extended to late 57 and into 58.
Re: Lower cylinder positions - 1957 Sportster in Gallery
Posted:
Thu Nov 15, 2018 10:56 pmby GaryM2
Out of the 6 - 1957 Sportsters in the gallery, only 2 are set up that way. The white and blue and the white and black models.
The Harley Museum Sportster is set up with the stamping on the right side and the part number on the left.
Which is correct?
Re: Lower cylinder positions - 1957 Sportster in Gallery
Posted:
Thu Nov 15, 2018 11:32 pmby themike
Are you asking about the HEADS or the CYLINDERS? If Cylinders, they fit ONE way. There may be a difference year to year regarding #. I think that is your question, right?
Re: Lower cylinder positions - 1957 Sportster in Gallery
Posted:
Fri Nov 16, 2018 4:37 amby Simon
That's something I wouldn't have noticed - good eye!
Re: Lower cylinder positions - 1957 Sportster in Gallery
Posted:
Fri Nov 16, 2018 10:24 amby strong56KH
If you look at the Pohlman photo of the 57 XL, the part casting numbers are on the right side and forge castings on the left. If these were cast in batches, it would follow that early VIN 57 XL's would have been fitted with these at the factory. When the cylinders were cast in the opposite configuration is unknown, but you don't see this configuration beyond 1958 as far as I have observed.
