Where do I find the right jug for my engine?

[Hell on Wheels]

Hey everyone,

Where can I find a jug that is properly ported for the GT-5 engine's 38mm stroke vs the usual 40mm stroke on every other jug I get? Is it all just luck?

 

[Spare_Parts]

CR Machine has them.

 

[Hell on Wheels]

CR Machine has them.

Is there one that doesn't cost a fortune? I know he's good at what he does but $100 for a chrome plated cylinder is a bit much. I wrecked my car recently so I'm trying to get the engine to run so I can at least get to school and back without walking for 3 hours each way.

 

[Cozmik Mezzenger]

 

[DistantWolrld101]

How much does that girl cost .... I mean bike I'd like one

 

[junglepig]

Is there one that doesn't cost a fortune? I know he's good at what he does but $100 for a chrome plated cylinder is a bit much. I wrecked my car recently so I'm trying to get the engine to run so I can at least get to school and back without walking for 3 hours each way.

It should run fine on an eBay jug if that's all you need.

 

[Hell on Wheels]

It should run fine on an eBay jug if that's all you need.

eBay jugs all seem to be 40mm stroke. That's all I've been getting. And it won't run because the piston covers half of the ports at BDC.

 

[junglepig]

eBay jugs all seem to be 40mm stroke. That's all I've been getting. And it won't run because the piston covers half of the ports at BDC.

https://bicyclemotorworks.com/product/professionally-ported-cylinder-piston/
It's $100.
I'm thinking you're going to have to work with number/thickness of base gaskets.
You've got the long rod and type B piston, right?

 

[junglepig]

View attachment 84871

off topic, but very pretty frame. Looks fast.

 

[Hell on Wheels]

https://bicyclemotorworks.com/product/professionally-ported-cylinder-piston/
It's $100.
I'm thinking you're going to have to work with number/thickness of base gaskets.
You've got the long rod and type B piston, right?

Yep, both cranks I have are GT5 with a ZAF80 rod