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Old 10-08-2010, 05:36 AM
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Default Harley Stroker?

This may be a dumb question. I know what a flat, knuckle, pan, and shovel head engine is, but what is a stroker engine? I saw a ad for a 74 Harley stroker and wondered what it is.
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Old 10-08-2010, 05:50 AM
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It's an engine that has been modified to have a longer stroke, thus giving more displacement and torque.
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Old 10-08-2010, 06:31 AM
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2 ways to increase the displacement (size, cubic inches) is increase the bore, which means the piston and cylinder are wider across; or to increase the stroke, which is the distance the piston travels in the cylinder. You can also increase both, which means it's been bored and stroked.
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Old 10-08-2010, 11:42 AM
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gotta add: don't stroke a sportster engine.
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Old 10-08-2010, 12:11 PM
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Man, I used to have a stroker shovel that ran like a raped ape for about 3 months out of the year, then would explode and I'd spend the the next 9 months building it up again.

Those were the days lol.
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Old 10-08-2010, 12:24 PM
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Quote:
Originally Posted by TW View Post
Man, I used to have a stroker shovel that ran like a raped ape for about 3 months out of the year, then would explode and I'd spend the the next 9 months building it up again.

Those were the days lol.

Isn't it amazing how a motor will sound its loudest and proudest.....right before it explodes. lol



Sorry man, I feel for yuh, I have been there myself.
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Old 10-08-2010, 12:25 PM
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Have to agree that stroking *generally* isn't a good idea. If you need more cubes, bore it. Your motor will be much happier.
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Old 10-08-2010, 12:29 PM
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Have to agree that stroking *generally* isn't a good idea. If you need more cubes, bore it. Your motor will be much happier.
20-25 years ago, there wasn't the big-bore selection of cylinders/pistons that there is now in the "aluminum age". Stroker wheels and rods were plentiful and so were stroker plates. We used what we could get our hands on. It's a lot different these days.
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Old 10-08-2010, 12:56 PM
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20-25 years ago, there wasn't the big-bore selection of cylinders/pistons that there is now in the "aluminum age". Stroker wheels and rods were plentiful and so were stroker plates. We used what we could get our hands on. It's a lot different these days.
Absolutely. I had a stroked Pan chopper for years. It would run great, amazingly fast (even beating KZ1000's and Yamaha 305 two-strokes, etc.), about 6 months out of the year. Then I would rebuild it, and go again the next year. I am so much happier now with the aluminum motors that can be bored out and still be stone reliable.
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Old 10-08-2010, 01:17 PM
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Definately...
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Old 10-08-2010, 01:17 PM
 
 
 
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davidson, engine, explained, harley, ironhead, longer, motor, motors, pistons, plates, power, sportster, strocker, stroke, stroked, stroker, wheels


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