6.5 Champion build

[Walter Keller]

We are in the process of modifing a Champion 6.5 hp engine. 390 GX carb, manifold, Uni filter, filter adapter, stronger valve springs and fuel pump. We also removed the governor and pluged the hole. Looking for a GX 160 head if anyone has one laying around.

 

[sayre315]

dont put a gx160 head on there
thats what i'v heard
get a ARC billet aluminum flywheel and connecting rod and you could probebly spin that thing over 7k without any problems

 

[Russ2251]

dont put a gx160 head on there
thats what i'v heard

Please backup these kinds of statements. It will be appreciated by all.
If cannot back it up...then it must be bogus.

 

[sayre315]

Russ, are you saying that he should'nt put a 160 head on?

 

[Russ2251]

Didn't say that at all.

 

[sayre315]

what are you sayin then?

 

[Russ2251]

Statement was made "dont put a gx160 head on there
thats what i'v heard".
This means nothing unless it can be backed up with known empirical facts.
It's easy to say that flying saucers exist. Proving it is a different story because of a serious lack of evidence.

 

[Kenny_McCormic]

160 head needs porting to take advantage of, I would get a billet rod/flywheel ($150), before anything else.

 

[oscaryu1]

GX160 head is fine. Same sized valves, increases compression ratios, ect.

Porting would make it all the better. You can find GX160 heads on eBay all the time. Kidney shaped, no doubt?

$39.99 on eBay, shipped. I was told they were 18cc, but they seem to look like 14cc's when compared to a genuine GX160's head.

Something it should look like when put together:

Original head vs (14 or 18cc head?) <19cc head.

 

[Kenny_McCormic]

Im thinking the head not really matching the bore at all might negatively affect flame growth?

 

[Jerryburger]

Just make sure it has a billet gas cap. It helps make it a better engine. (I've heard.)

 

[kibble]

Just make sure it has a billet gas cap. It helps make it a better engine. (I've heard.)

Only as long at the spout that delivers the gas is billet as well. You gotta have billet to billet contact.

 

[Russ2251]

Wasn't Steve McQueen in the film "Billet"?

 

[jr dragster T]

Lol my rhino ONLY has billet to billet.

 

[Kenny_McCormic]

Lol my rhino ONLY has billet to billet.

What about the EXTRUDED fuel lines? And that CAST carb body? The header isnt billet and i doubt the gaskets are.

 

[crazycart]

Bling.

 

[2or3wheels]

sweet

 

[Walter Keller]

back to topic

Thanks for the pics - just going to use what we have now as far as mods. Should have it back together tomorrow - need to pickup a gasket and a couple bolts.

Speaking of "billet" does anyone make valve covers from "billet" aluminum for the Honda.

 

[oscaryu1]

No one I know makes billet aluminum valve covers. You could call your local machine shop or ARC... but it won't be cheap.

 

[Walter Keller]

covers

I am always looking for new stuff to make - have to talk to my CNC guy.