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Old 10-13-2010, 02:08 PM   #1 (permalink)
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whats the best 347 rotating kit

i have a 65 fastback with a toploader and i got my hands on a 302 block to build a bad ass 347.. problem is all i can find is scat or probe rotating stroker kits and i refuse to use either one. can anybody help me out by telling me what are the best rotating stroker kits out there. of course forgers crank , pistons and connecting rods. money is no object i just want the best.
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Old 10-14-2010, 08:24 AM   #2 (permalink)
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Re: whats the best 347 rotating kit

Stefko Racing set me up with Callies steel crank, Oliver 4340 forged rods & KB pistons with a stud girdle its about as strong a bottom end possible.
My only mistake, not springing for an aftermarket block, so, i can;t even think about more than 450hp.
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Old 10-14-2010, 08:43 AM   #3 (permalink)
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Re: whats the best 347 rotating kit

thank you.. sound just what i was looking for... can you give me a ballpark on what that cost you.. thanks
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Old 10-14-2010, 08:57 AM   #4 (permalink)
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Re: whats the best 347 rotating kit

The scat kits come highly recommended by most..They are machined in the U.S...Why are you opposed to using them?
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Old 10-14-2010, 09:25 AM   #5 (permalink)
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Re: whats the best 347 rotating kit

sorry for those who recomends them but i concider them junk for high hp apps.last i heard they are now machined in china just like probe and eagle.
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Old 10-14-2010, 10:18 AM   #6 (permalink)
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Re: whats the best 347 rotating kit

For you, and you only, I will recommend a $2,200 Crower Crank, a $1,200 set of Crower rods, and a set of $1,000 Ross pistons........to put into that $200 stock block........
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Old 10-14-2010, 12:20 PM   #7 (permalink)
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Re: whats the best 347 rotating kit

first all .. dont be a wise ass...and i never said it was a stock block.. its a world block high nickle. si I KNOW the block could handle 500 + hp
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Old 10-14-2010, 11:00 PM   #8 (permalink)
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Re: whats the best 347 rotating kit

i use Bryant Racing cranks, Oliver standard light rods , JE pistons , Ford racing BOSS block , dail stretch gauge for rod bolt tightening not a torque wrench. internal balance and a BHJ balancer. this stuff is the best and Carillo rods MIGHT be a tad better for twice the price with CARR bolts ! HUUUM , this is post 408 for me but i dont run 408's !

Last edited by shiftthis; 10-14-2010 at 11:04 PM.
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Old 10-15-2010, 09:04 AM   #9 (permalink)
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Re: whats the best 347 rotating kit

My rotating assembly with gapless rings came in at approx.- $2,175.00 & the crank for instance looks like a piece of art work!
Pretty well bullet proof set up, again, my only mistake is using a stock block
She made 450hp @ 6K/412@ 3500 on the dyno, which i know isn;t real world but good to know.
So, so much for power adders or gas as i'm pretty well at the blocks limit now!
One interesting thing - The Edelbrock RPM heads i got new, but, 4 unmatched springs, 2 seats unfinished & 1 valve shorter than the rest!
So, we ditched the springs, re-did the seats, tooled steel retainers, St.Steel valves, ported them & Edelbrock did step up & make good on parts, labor.
But, if i had been a backyard builder & just bolted them on expecting great results, what would have happened?
first really pro built motor & i couldn;t be happier with the results
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Old 10-15-2010, 09:45 AM   #10 (permalink)
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Re: whats the best 347 rotating kit

Quote:
Originally Posted by yoyoman05 View Post
first all .. dont be a wise ass...and i never said it was a stock block.. its a world block high nickle. si I KNOW the block could handle 500 + hp

First of all, wise ass is what I do.....and you got an answer commensurate with the information you gave.

Second define "bad ass". 500 FWHP is a flat top 347 with not much, and a cast crank will handle it fine.

What, specifically, is your goal?
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Old 10-15-2010, 10:41 AM   #11 (permalink)
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Re: whats the best 347 rotating kit

Quote:
Originally Posted by yoyoman05 View Post
i have a 65 fastback with a toploader and i got my hands on a 302 block to build a bad ass 347.. problem is all i can find is scat or probe rotating stroker kits and i refuse to use either one. can anybody help me out by telling me what are the best rotating stroker kits out there. of course forgers crank , pistons and connecting rods. money is no object i just want the best.
Quote:
Originally Posted by Mark O'Neal View Post
For you, and you only, I will recommend a $2,200 Crower Crank, a $1,200 set of Crower rods, and a set of $1,000 Ross pistons........to put into that $200 stock block........
Based on your quote in black, I'd say Mr. O'Neal answered your question.

When you give half information, you get half answers. What's your goal? Street or Strip? What type of induction?

Also, I know some people prefer the Probe kit because it's one of the only ones that uses a 5.315" rod instead of a 5.40" rod. This moves the wrist pin further down in the piston so you don't have the oil rings unsupported at the pin. Some say it's a non-issue, some say it's a big issue. Depends on who you want to believe.
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Last edited by wilit; 10-15-2010 at 11:03 AM.
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Old 10-23-2010, 03:00 PM   #12 (permalink)
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Re: whats the best 347 rotating kit

My Scat forged rods and crank are on their 3rd build and 2nd block. Can't go wrong with Scat.
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Old 10-24-2010, 07:22 AM   #13 (permalink)
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Re: whats the best 347 rotating kit

Quote:
Originally Posted by yoyoman05 View Post
first all .. dont be a wise ass...and i never said it was a stock block.. its a world block high nickle. si I KNOW the block could handle 500 + hp
In your original post, you said you got a 302 block to build a 347 with... and didn't want to deal with Eagle/Scat 'junk'.

302 block generally means... 302 block... not World block.

The Scat stuff is pretty good. You may or may not need +0.001 bearings or the rods or mains, but the machining is generally pretty straight.
As for strength, the stock block, rods and cast crank generally give up at about the same time, so stuffing expensive forged pieces in a stock block is generally a waste of money. You -might- invest is Scat forged parts, but Oliver, etc in a stock block is kind of silly.

I've pushed a cast 302 crank, 289 rods w/ARP bolts and stock block to 10.6's in a 3300# car to a 10.63 @ 129.3 in the 1/4 mile, and ran dozens of nitrous bottles through it. The current engine uses an old Boss 302 crank and rods in a Mexican block, and goes significantly faster.

Point is, for a stock block, don't waste your money on exotic rotating parts. Spend it on GOOD machine work and attention to detail. GOOD machine work is hard to find. WAY too many hacks/lazy asses out there. Your machine work is more important than the parts you choose.

Good Luck!
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