I have a 1980 Sporty with a 1000cc Shovelhead. I blew the trans. case this past summer and am having trouble finding someone to fix it or finding a new one. I was looking at maybe putting a new revtech or s&s shovelhead motor into the bike. Has anyone ever done this on their sporty? Any suggestions would be appreciated. Thanks in advance.

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Jug

 

First off it's not a Shovelhead unless it's Shovester conversion, it's an Ironhead Sportster.
Not sure what the max is with stock engine cases but I had one that was out to 86". (over 1400cc)
This was done with a stroker kit,case bore and remachined stud pattern for oversized jugs from Axtel.
Y2K

 

To date, I have found no big bore kits for IRONHEAD engines. You can stroke it to 1200. But would not recommend stroking beyond 1200.

 

check carls speed shop.
it aint a shovel, its a sportster.
you can put anything you wabt in anything you want as long as you have tools, knowledge and MONEY.
why not just fix he tranny?

 

now how would that be fun?

 

79 Lowrider had an 80" shovel in it.

 

have an 80 in a 79 lowrider also

 

I recently sold a '72 Sprty motor with a 3.5" bore, Axtell cylinders, cases bored and base studs reloccated. It had 4 5/8 S&S flywheels in it. I believe it came to 88 cu.in.