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Re: 400 based 512ci cranks and kits [Re: FastmOp] #1890259
08/12/15 02:22 PM
08/12/15 02:22 PM
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dogdays Offline
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440Source's $2250 price includes balancing and shipping.
The pistons started out as Ross, then were ICON, and they don't say now except they're CNC produced in America out of American forgings. If you don't like the rods then move on.

Re: small end bushing problems - Is it possible that the pin is flexing too much?

I'd say whatever you do, start out with the idea of using 2.20 rod journals and 0.990 pins as these unlock the door for a wider variety of parts.

Been through this a hundred times, but the oil flow through the rod bearing is metered by the clearance between bearing and journal. The side clearance is so much bigger that it makes no difference on oil flow out of the bearing. Many circle track racers run those clearances extra big, keeping the rod in place by the piston pin boss. Look up "piston guided rods". There is obviously horsepower in eliminating that friction.

R.

Re: 400 based 512ci cranks and kits [Re: dogdays] #1890284
08/12/15 02:53 PM
08/12/15 02:53 PM
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Posts: 13,247
Mt. Vernon, Ohio
dartman366 Offline OP
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Thanks for the info, as far as the rod bushing's that I have seen both failed and non failed the bushing thickness appears to be to thin, wall thickness wise seems un supportive,could be material could be thickness not sure, i suppose you could remove them and replace them with a known top quality bushing and all would be good, just food for thought.


Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
Re: 400 based 512ci cranks and kits [Re: dartman366] #1890459
08/12/15 06:58 PM
08/12/15 06:58 PM
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Oregon
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AndyF Offline
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The trick is to use the Chevy rods. They are made in much higher volume so you can get higher quality rods for less money. For a 512 you should be able to use a very common 6.535 rod. Another great benefit of using the Chevy rod is that then you can use Chevy rod bearings. There are a ton of those bearings available including different widths, coatings, etc.

If it was me I'd probably go with the Molnar crank, some SCAT H beam rods and the SRP pistons. That combo should fall together and make really nice power with the TF heads.

Re: 400 based 512ci cranks and kits [Re: AndyF] #1890481
08/12/15 07:41 PM
08/12/15 07:41 PM
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366 Offline OP
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Originally Posted By AndyF
The trick is to use the Chevy rods. They are made in much higher volume so you can get higher quality rods for less money. For a 512 you should be able to use a very common 6.535 rod. Another great benefit of using the Chevy rod is that then you can use Chevy rod bearings. There are a ton of those bearings available including different widths, coatings, etc.

If it was me I'd probably go with the Molnar crank, some SCAT H beam rods and the SRP pistons. That combo should fall together and make really nice power with the TF heads.
Well Andy you are real close to what my list is, only diff is Eagle rod's and Ross pistons, I will look at the Scats and srp's


Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
Re: 400 based 512ci cranks and kits [Re: dartman366] #1890663
08/12/15 11:41 PM
08/12/15 11:41 PM
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Oregon
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AndyF Offline
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The SRP 213453 pistons are $560 at Summit while the ICON 823 pistons are $627 and the Ross 99495 pistons are $690. I think these are apples to apples prices but you have to double check to be sure. Diamond also has a shelf piston but they sell direct so you have to call them for pricing.

I'm sure that Molnar also has a 6.535 rod and his prices are usually really good. The SCAT rods are $485 at Summit with the standard bolts which should be fine for your application. You can put together a total stroker kit for about $1900 from Summit. If your engine builder has a wholesale account with Summit then they get an additional discount.

Last edited by AndyF; 08/12/15 11:52 PM.
Re: 400 based 512ci cranks and kits [Re: AndyF] #1890866
08/13/15 10:35 AM
08/13/15 10:35 AM
Joined: Jan 2004
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Mt. Vernon, Ohio
dartman366 Offline OP
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once again Andy you (and others) have provided excellent info and you just verified my parts selsctions, Thank you very much,,,now its time to start building the savings account back up. laugh2


Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
Re: 400 based 512ci cranks and kits [Re: dartman366] #1890911
08/13/15 11:55 AM
08/13/15 11:55 AM
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Aurora, Oh.
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max_maniac Offline
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Originally Posted By dartman366
once again Andy you (and others) have provided excellent info and you just verified my parts selsctions, Thank you very much,,,now its time to start building the savings account back up. laugh2



I think "Hell" has frozen over -------- popcorn

drinking

Re: 400 based 512ci cranks and kits [Re: max_maniac] #1890977
08/13/15 01:19 PM
08/13/15 01:19 PM
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366 Offline OP
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laugh2I thought it was getting cold around here, guess it's time to step off into the deep end and either sink or swim.lol


Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
Re: 400 based 512ci cranks and kits [Re: dartman366] #1891132
08/13/15 05:19 PM
08/13/15 05:19 PM
Joined: Jan 2003
Posts: 2,299
NE Ohio
DoubleD Online content
top fuel
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NE Ohio
Go Big (block) or go home.........and just as we are getting ready to go HEMI..........hell is icing up pretty quick.

Re: 400 based 512ci cranks and kits [Re: DoubleD] #1891325
08/13/15 09:42 PM
08/13/15 09:42 PM
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Aurora, Oh.
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max_maniac Offline
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Originally Posted By DoubleD
Go Big (block) or go home.........and just as we are getting ready to go HEMI..........hell is icing up pretty quick.



work I'm still trying to figure out how come there are no oil leaks with all them holes in the valve covers work

And why did they hide the spark plugs in them holes shruggy

Funny looking engine - do they have a video pictorial I can watch to see how to change the spark plugs wrench

Whats this Hemi thing anyway - could be a pretty Hefty thing whistling

Re: 400 based 512ci cranks and kits [Re: dartman366] #1891843
08/14/15 02:25 PM
08/14/15 02:25 PM
Joined: Jan 2003
Posts: 684
St. Charles, MO.
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Slingshot383 Offline
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St. Charles, MO.
Ross pistons, GRP Chevy style rods, and crank of your choice, light and strong.


1994 Undercover Chassis 125" altered stack injected big block, soon blown and injected Member of The Torque and Recoil Club
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