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Author Topic: Great News Possibly Developing!  (Read 7057 times)
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rceagle1a
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« on: March 16, 2013, 12:26:38 AM »

I stumbled across a possible new place for big block clone engines. I'm not going to post the web link just yet for this site to be sure it is Mower racing worthy, but I have a GX440 clone engine ordered and when it arrives I'll be posting pics during the unboxing. Followed by a teardown to inspect the engine further inside and out. Some details on these engines are: 440cc, 92mm bore by 66mm stroke. 18hp claimed stock out of the box. Engines are sold as long blocks without carburetors, Exhaust, Or fuel tank. They can be purchased in either electric start or pull only. To be race ready these engines will require a billet flywheel, rod, and head work. Balance shaft is included with engine as well to stop the eyeball popping some of these engines can cause. Representative from this company stated that they went to the plant where these are built with pluses and minues of all other clone engines built and made changes to these engines where needed to address clone deficiencies and further strengthen the good points. Engines come from factory with no governor to remove or oil alert sensors to remove(Block castings are blocked in these locations). Spark plug boot looks to be upgraded and coil is supposed to be non rev limiting. Cams offered by this merchant are ground by Tim Iskenderian at small engine cams. They have a few different cam grinds available. upgraded valves, and Billet Rods are offered from Parson's Racing Supply, Along with ARC flywheels and rods. Rockers and other various parts from raceseng are also listed. Base GX440 longblock is $329 for non-electric start and $349 for the electric start version. New stock bare heads are $28.00 so you could buy 2 or 3 heads and work on different porting and valve combo's and be able to test much easier. Here are the supplier sourced tech specs:

These engines are made to our specifications and are the only Straight-shaft 439cc Honda GX390 "big bore clones" available for purchase in the United States. They are EPA-exempt and are currently sold only in longblock form to racers and engine builders of racers.

 We maintain positive direct contact with our factory to ensure consistency and the ability to continually improve these engines as time goes on. We appreciate all feedback(positive or negative) and would like to hear from you, regarding what you (the racers) want in these engines.

 Specifications:
 -92mm Bore x 66mm Stroke
 -8.75:1 Compression
 -3 Angle Intake Valve Seat
 -36mm Intake & 31mm Exhaust Valves
 -32lb HD Valve Springs Factory Installed
 -Extra-thick Cylinder Head Deck (41cc Chamber) Can be milled over .150"
 -6 Amp Charging Coil
 -Uses all GX390 Parts
 -Cam journal is NOT 0.008 oversize like most clones
 -Lightweight 235gram Connecting Rod
 -388gram Piston & Wrist Pin (-7cc Dish)
 -Oil Alert and Speed Governor have been removed and holes plugged.
 -Balance Shaft included
 -All Engines are Test-Run before being shipped.



* GX440E3.jpg (182.24 KB, 908x678 - viewed 256 times.)

* GX440E4.jpg (181.79 KB, 908x678 - viewed 251 times.)

* GX440E2.jpg (209.02 KB, 908x678 - viewed 354 times.)
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Justin Altemeier, Newton, Iowa USA
Primarily Sponsored by: VanWall Powersports, Perry Iowa,Associate Sponsors:Mike's Machine and Repair, Reasnor Ia., Chris Talburt Custom Paint and Graphics, Ozark Mo.,Clymer Bros., Nelson Farms, Rick Crozier,K&W Enterprises, M&D Farms, Kelli Aldrich, Colfax Auto Parts, Webb Family Farms, Nuzum Services, Colfax Tractor Parts,HERRIN MOWERSPORTS
 



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To LOSE just plain SUCKS!!!!!!
Jeff McKelroy #55A
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« Reply #1 on: March 16, 2013, 12:30:13 AM »

That's Interesting, Keep Me Posted!!
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Jeff McKelroy
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« Reply #2 on: March 16, 2013, 12:33:52 AM »

Still only 27 cubes? Can it be punched out?
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Drew Burton #19 FXS/FXT
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« Reply #2 on: March 16, 2013, 12:33:52 AM »

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rceagle1a
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« Reply #3 on: March 16, 2013, 01:24:54 AM »

Drew, Jake Herrin's FXS is no slouch in the power department and it is only a 420cc.
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Justin Altemeier, Newton, Iowa USA
Primarily Sponsored by: VanWall Powersports, Perry Iowa,Associate Sponsors:Mike's Machine and Repair, Reasnor Ia., Chris Talburt Custom Paint and Graphics, Ozark Mo.,Clymer Bros., Nelson Farms, Rick Crozier,K&W Enterprises, M&D Farms, Kelli Aldrich, Colfax Auto Parts, Webb Family Farms, Nuzum Services, Colfax Tractor Parts,HERRIN MOWERSPORTS
 



To WIN is EVERYTHING!!!!!!
To LOSE just plain SUCKS!!!!!!
George Herrin
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« Reply #4 on: March 16, 2013, 07:16:58 AM »

But Justin it aint no Kohler!!! But it will make em go out and spend lots of money!!!
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George Herrin #6
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cubcadet70
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« Reply #5 on: March 16, 2013, 12:06:10 PM »

I've been looking at this for a few months now since he told us when it's going to arrive. I'm a Honda fan as well as the kohler. But you can't beat a built kohler roller motor. But the price is nice on Honda and the clones.
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George Herrin
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« Reply #6 on: March 16, 2013, 12:22:26 PM »

But you can't beat a built kohler roller motor.

Dont bet your bank roll on that one buddy!!!
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George Herrin #6
Indian Power.. You gotta Go big to beat em or Go HOME
8 time ARMA National Champion
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www.herrinmowersports.yolasite.com
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My other racer is a 1/5th scale Dirt Late Model!!!!
cubcadet70
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« Reply #7 on: March 16, 2013, 10:26:12 PM »

Haha George. Yes it's true. But the Honda has always been more reliable and cost effective. I have not built a kohler yet. I know there's more stuff for the kohler now than the Honda but... You get what you pay for!
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George Herrin
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« Reply #8 on: March 16, 2013, 10:30:08 PM »

Are you sure about that!!!
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George Herrin #6
Indian Power.. You gotta Go big to beat em or Go HOME
8 time ARMA National Champion
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www.herrinmowersports.yolasite.com
www.allamericanmowerchampionships.yolasite.com
My other racer is a 1/5th scale Dirt Late Model!!!!
Burwell555
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« Reply #9 on: March 16, 2013, 10:35:19 PM »

I guess time will tell as the fxs class grows to more than a handful and some variety starts showing up!
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Zach Burwell
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George Herrin
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« Reply #10 on: March 16, 2013, 10:43:10 PM »

Just remember David slayed Goliath!!!
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George Herrin #6
Indian Power.. You gotta Go big to beat em or Go HOME
8 time ARMA National Champion
4 time USLMRA National Champion
Retired from BP
www.herrinmowersports.yolasite.com
www.allamericanmowerchampionships.yolasite.com
My other racer is a 1/5th scale Dirt Late Model!!!!
cubcadet70
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« Reply #11 on: March 16, 2013, 10:57:46 PM »

Eh I don't know. I prolly spoke too soon lol. But them Honda are like one of the quotes from Uncle Si on Duck Dynasty, "I sting like a butterly and punch like a flea"    lol
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Burwell555
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« Reply #12 on: March 16, 2013, 11:03:51 PM »

Just remember David slayed Goliath!!!

Of course, but as my ole man always tells me, "light shines on a dogs rear every now and then, but consistency brings home the championships, boy. Does ya no good to be a one hit wonder if your tryin to be the big dog"
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Darkviper
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« Reply #13 on: March 16, 2013, 11:33:07 PM »

Geroge is ur sons clone a honda gx390 or 420 clone cause i thought it was 390.
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Jonathon Kaup
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George Herrin
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« Reply #14 on: March 17, 2013, 12:00:15 AM »

Which one!!! He has several motors depending on the challenge at hand. Lets say he has plenty of motor for any challenge!!!
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George Herrin #6
Indian Power.. You gotta Go big to beat em or Go HOME
8 time ARMA National Champion
4 time USLMRA National Champion
Retired from BP
www.herrinmowersports.yolasite.com
www.allamericanmowerchampionships.yolasite.com
My other racer is a 1/5th scale Dirt Late Model!!!!
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