crank/rod help

should i use the stock crank and rod for my 686 workhores build? or would a weld aftermaket crank and rod be better im using a benchmark big bore and mud buster cam also steel cam pins and gear brace from benchmark. im looking to build a motor for working and mudding and plowing but would still like to run good on top end

Crankworks in Temps, AZ. But...they take thier time and are currently out of rhino rods. I'd get a corrillo rod, bearing and pin from benchmark and send all the stuff to crankworks, then they can get it done quicker.

I agree on crankworks...but I prefer the falicon knife edge rod. Dont let crankworks install their bearing...use OEM only.

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Why dont you have Benchmark do your crank?

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Thats what im asking is there a need to have them do the crank or is a stock crank fine for my type of build

The stock crank is fine...but i wouldnt run the stock rod

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I have been researching info for my build. From what I have gathered is Chris/Benchmark does cranks in-house. Using your stock crank, he adds a Carrillo rod, bearings and another mod. Along with the diff support you will have a very strong bottom end. I going to send him mine.

Best thing to do is give Benchmark a call.

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The stock crank and rod will work fine for your application. If you want to rebuild the crank and uograde to a Carrillo rod, that would obviously be better.
I would not recommend CW. After delays, mistakes, and finally repairing a customer's stroker crank for me recently, I received it only to find that the timing gear wasn't installed in the correct orientation. To correct the advanced cam timing, we had to use a slotted cam sprocket and degree the cam.

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I have a ton of time on my Benchmark 686 with stock rod and crank. If I had the bucks, I would have upgraded though.

But do use the CP piston and DLC pin fRom Chris, this has definately helped in the longevity of my motor.


Rog

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Benchmark 686, (67.6 RWHP )
HRT Motorsports cage, LSR XTR 6.5
Rugged RRP600

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yea i talked to chris and he just says to use a stock crank and rods for my build im getting all my parts from him seems very willing to help even me

What carb and exhaust are you going to use?

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for now stock intell i feel it dont work well. but i dont want it really loud so i like the stock echaust and i think if i put a jet kit in the stock carb it will work out fine for my needs

They sound funny with a stock exhaust....I just put my stock system back on last week.

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is there any exhuast that is not any louder then stock but that would add power or is all afterameket exhuast going to make it really loud i dont care if it sounds funny as long as its not loud it will spend some time been drove around a semi shop in doors so i cant have it to loud

HMF makes an aftermarket exhaust that is called the Swamp Series. It is not much louder than stock but will allow it to breathe better. The Utility Series however is very loud and would not be good for your application. Check into the Swamp Series from HMF.