[DummyLicense]

Hey guys, new to the site and decided to join because I had some questions. I have been driving a street rod 750 for almost a year now, I love the bike itself and I’ve always been given compliments on it but after awhile Ive been getting “used” to it. I’ve been riding the bike for over a year and I want to do something that to my knowledge hasn’t been done before after a month of research, I’m wanting to put a bigger engine like a 114 or something along those lines in the bike but i have decided before I take those steps I would like an opinion of someone who’s been in the Harley scene for awhile.

 

[DummyLicense]

Hey guys, new to the site and decided to join because I had some questions. I have been driving a street rod 750 for almost a year now, I love the bike itself and I’ve always been given compliments on it but after awhile Ive been getting “used” to it. I’ve been riding the bike for over a year and I want to do something that to my knowledge hasn’t been done before after a month of research, I’m wanting to put a bigger engine like a 114 or something along those lines in the bike but i have decided before I take those steps I would like an opinion of someone who’s been in the Harley scene for awhile.

thought I would add a picture just to show what she looks like.

 

[Bott]

Big intagreated trans so you need to lengthen the frame. That solves that Idea. Bore size from a 750 to a 107 stroke is now you X'd the frame for the trans length, now stretch the frame up so the barrels fit the stroke is Y. As in why bother.

Smartest move you can make is either build a 107 from scratch, leave the 750 alone.

 

[PugslyCat]

You would have to change pretty much everything on the bike to install an engine that is more than twice the displacement having significantly more weight, horsepower, and torque. You might be able to reuse the headlight, bars, tank, and seat with minor or no modifications. I'm thinking it would be an effort that would take a professional customizer many months of effort.

I'm thinking that most folks would have a higher chance of success and less cash outlay to start with a bigger bike that already has the engine they want. They could then bolt on the accessories that would make it more like the Street Rod.

 

[DummyLicense]

Big intagreated trans so you need to lengthen the frame. That solves that Idea. Bore size from a 750 to a 107 stroke is now you X'd the frame for the trans length, now stretch the frame up so the barrels fit the stroke is Y. As in why bother.

Smartest move you can make is either build a 107 from scratch, leave the 750 alone.

You would have to change pretty much everything on the bike to install an engine that is more than twice the displacement having significantly more weight, horsepower, and torque. You might be able to reuse the headlight, bars, tank, and seat with minor or no modifications. I'm thinking it would be an effort that would take a professional customizer many months of effort.

I'm thinking that most folks would have a higher chance of success and less cash outlay to start with a bigger bike that already has the engine they want. They could then bolt on the accessories that would make it more like the Street Rod.

I’m aware I’m gonna have to do a lot to the bike if I do like cut the frame and elongate the frame as a whole but I honestly think my whole problem would be wiring it all up. Honestly most of the hardware I have like the bigger engine.

 

[Bott]

There is a bike to ride and a bike to work on. The working bike is long in the chase, or amazon is a click away for new aftermarket replicated parts. Go to a swap meet, look around for a bike you like to have, then restore it as per [whatever is in the head] picking parts off the swap meet ground.

A few things happen:
1. Fighting the once enthusiast attempt at a large project is now left in the corner is wasted money and time.
2. The 'I didn't know how much' things would cost, either engine/machine work wise, or a part that is NLA, and that 'no longer availability' stops the project cold.
3. The financial return of the project, where you took a loss rather than a profit; once the project is finished. It was more profitable to piece the bike out just to break even, or a live and learn was the 'tuition' spent on an unprofitable exercise, where money was better spent on lotto tickets.

Wiring is the easy part. It's having the skill set to do it all starting from the front wheel to the back wheel, nothing gets in the way of the build. Here are the flipper bikes that all eventually went to Japan I hear? Learn how to wire a bike from scratch. Starting out building one to warm you up for the big project bike. Then again...

... Signed,
NOLTT (no one listens to turtle)

 

[Guaire]

Have you ever stuffed an over-sized motor into a small frame before?.... and completed the build into a working motorcycle before?
Have you ever modified a frame and run it? Have you ever built a frame from scratch and run it?
Do you know what rake and trail mean and how wheelbase length affects handling? Then there's the issue of suspension components.
Why not build a Norvin?

 

[Guaire]

The XG engine is a 60 degree V. The old HD engines are 45 degrees. The old ones are tighter in angle, but they are bigger lumps.
If you have the chops for frame building, just build a frame for whatever motor you like. Keep in mind, you will have to replace the wiring harness completely as well.

 

[CISA2016]

Hey guys, new to the site and decided to join because I had some questions. I have been driving a street rod 750 for almost a year now, I love the bike itself and I’ve always been given compliments on it but after awhile Ive been getting “used” to it. I’ve been riding the bike for over a year and I want to do something that to my knowledge hasn’t been done before after a month of research, I’m wanting to put a bigger engine like a 114 or something along those lines in the bike but i have decided before I take those steps I would like an opinion of someone who’s been in the Harley scene for awhile.

Doesn’t worth it. Only real chance is V&H has race engine for street rod 750 which will increase the power to 100hp. It’s not road legal. Street rod is at best fun with its original engine . If you think about 114 built then HARLEY has done testing , years of design and has built the frame for it and that is softail and touring frame. If you want 114 just buy a softail model and it will save you a ton of money + safety. I can understand the fun part of what you are talking but the truth is that the street rod frame is small to hold that engine , transmission and all other components + the height of street rod is not good for those heavy parts. I’m no one to advise but just sharing my thoughts.