100" Big Bore Kit

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Feb 4, 2011 | 02:22 AM

#11

grbrown

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Joined: Jun 2007

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From: Bedford UK

Quote:

Originally Posted by 1997bagger

Those are Revolution Performance parts on the the Ebay add, some have had good luck but several have had disasters, the Rev Perf vendor thread on one of the forums was a horror show with piston failures and no support towards failed parts.
Axtell makes a good big bore kit that works but for $900 I would purchase a 4 5/8 S&S stroker kit and know I have a proven product.

I had a JIMS stroker flywheel set in my evo in a former life. Gives 89 cu (or 90ci with a standard +.020 rebore!). I later looked into boring the crankcases to increase bore and the ci even more, but came to realise the costs were ramping up, hence eventually went for a new motor.

Feb 4, 2011 | 05:12 AM

#12

Plow64

Thread Starter

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Joined: Jan 2007

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From: Northern VA

Quote:

Originally Posted by flashprez

go to www.revperf.com they have a 85 ci pistons & cylinders that do not use the steel sleeve. They are nickel-silicone-carbide electroplated bores. Motor does not have to be split to install. They run about 1k.

Thanks for the link, flash. The Rev Perf kits, not including the cost to bore the cases, cost about 85% of an after market 113" engine. There's an S&S 113" on ebay for $4999 and the Demon Cycles 114" for around $4250.

Feb 4, 2011 | 08:12 AM

#13

96roadking

Outstanding HDF Member

Joined: Mar 2010

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From: Hallsville, Tx.

Jirehcycles.com always has good prices on Ultima big inch motors.

Feb 4, 2011 | 08:16 AM

#14

98 FLHX

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Joined: Mar 2009

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From: St. Peters, Missouri

Quote:

Originally Posted by 96roadking

Jirehcycles.com always has good prices on Ultima big inch motors.

A buddy of mine has an Ultima 113 he bought from Jireh in his 1990 FXR.
Needless to say, that thing is a beast...

Feb 4, 2011 | 12:43 PM

#15

1997bagger

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From: Ohio

Quote:

Originally Posted by Plow64

Be careful with Demons, 3 pages on another forum of why not to buy from them, I didin't see the warnings and personally lost money on handling charges because of wrong years listed in add and the part didn't fit, had to pay the handling fee to get my money back and out shipping. Demons has a nice scam going.

Feb 4, 2011 | 12:57 PM

#16

1997bagger

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Joined: Aug 2008

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From: Ohio

Here is a link to a new Ultima 113 cleaned up by an engine builder John Sachs that set my heads up. The Ultima's are a good value but in the hands of the right people, they are a weapon.

http://harleytechtalk.org/htt/index....c,11115.0.html

Feb 4, 2011 | 01:17 PM

#17

grbrown

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Joined: Jun 2007

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From: Bedford UK

Take a close look at the performance figures for an S&S 113 before buying. When I was looking a couple of years ago they had a fairly wild cam and a lumpy torque curve. I bought a 107 for my Glide with a flatter and much wider torque curve, but they have since replaced that with a 111. The 111 and 113 will probably each suit different types of bike.

Feb 4, 2011 | 04:01 PM

#18

98 FLHX

Tourer

Joined: Mar 2009

Posts: 375

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From: St. Peters, Missouri

Quote:

Originally Posted by 1997bagger

Here is a link to a new Ultima 113 cleaned up by an engine builder John Sachs that set my heads up. The Ultima's are a good value but in the hands of the right people, they are a weapon.

http://harleytechtalk.org/htt/index....c,11115.0.html

...very true...