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Re: 440 build Any sugestions? [Re: BradH] #1105942
11/03/11 04:14 PM
11/03/11 04:14 PM
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
H
HotRodDave Offline
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Kalispell Mt.
Another vote here for good rods, even before a roller cam


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: 440 build Any sugestions? [Re: HotRodDave] #1105943
11/03/11 04:27 PM
11/03/11 04:27 PM
Joined: Mar 2009
Posts: 1,058
bigfork mn
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dragram440 Offline OP
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Im sure the LY rods will work fine on a mild build like this one! They are already resized and balanced with the rest of the rotating assembly. Fairly low compression and not to many RPM's and im sure they will live just fine!


67' charger 499 RB 10.57 at 127
Re: 440 build Any sugestions? [Re: dragram440] #1105944
11/03/11 04:31 PM
11/03/11 04:31 PM
Joined: Mar 2010
Posts: 130
Marcell, MN
68 Roadrunner Offline
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Marcell, MN
Quote:

Im sure the LY rods will work fine on a mild build like this one! They are already resized and balanced with the rest of the rotating assembly. Fairly low compression and not to many RPM's and im sure they will live just fine!




Maybe it's just me but it doesn't seem that mild. To me mild would be stock heads with a cam, intake, carb and headers. This sounds like a disaster waiting to happen! Lol


1968 Roadrunner 383 auto .060 KB 400 domed pistons, Stealth heads, Torker intake, Holley 830, Lunati Voodoo cam 276/284, .513/.533, TCI 3500, 3.91 gears, all ARP fasteners,
Re: 440 build Any sugestions? [Re: dragram440] #1105945
11/03/11 04:33 PM
11/03/11 04:33 PM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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BradH Offline
Taking time off to work on my car
BradH  Offline
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Val-haul-ass... eventually
My car was only running mid-to-high 12s and turning 5800 RPM when it spit the rod out I mentioned. They might be fine, or they might be time bombs...

Re: 440 build Any sugestions? [Re: 68 Roadrunner] #1105946
11/03/11 04:35 PM
11/03/11 04:35 PM
Joined: Mar 2009
Posts: 1,058
bigfork mn
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dragram440 Offline OP
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Quote:

Quote:

Im sure the LY rods will work fine on a mild build like this one! They are already resized and balanced with the rest of the rotating assembly. Fairly low compression and not to many RPM's and im sure they will live just fine!




Maybe it's just me but it doesn't seem that mild. To me mild would be stock heads with a cam, intake, carb and headers. This sounds like a disaster waiting to happen! Lol



11-1 comp. 3800 converter and 3.91 gears and .590 flat tappet cam is about as mild as it gets. stock heads cam and intake sounds weak. Might as well build a 383 if thats the case!


67' charger 499 RB 10.57 at 127
Re: 440 build Any sugestions? [Re: dragram440] #1105947
11/03/11 04:47 PM
11/03/11 04:47 PM
Joined: Mar 2010
Posts: 130
Marcell, MN
68 Roadrunner Offline
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Posts: 130
Marcell, MN
Quote:

Quote:

Quote:

Im sure the LY rods will work fine on a mild build like this one! They are already resized and balanced with the rest of the rotating assembly. Fairly low compression and not to many RPM's and im sure they will live just fine!




Maybe it's just me but it doesn't seem that mild. To me mild would be stock heads with a cam, intake, carb and headers. This sounds like a disaster waiting to happen! Lol



11-1 comp. 3800 converter and 3.91 gears and .590 flat tappet cam is about as mild as it gets. stock heads cam and intake sounds weak. Might as well build a 383 if thats the case!





I guess only time will tell.


1968 Roadrunner 383 auto .060 KB 400 domed pistons, Stealth heads, Torker intake, Holley 830, Lunati Voodoo cam 276/284, .513/.533, TCI 3500, 3.91 gears, all ARP fasteners,
Re: 440 build Any sugestions? [Re: dragram440] #1105948
11/03/11 04:52 PM
11/03/11 04:52 PM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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BradH Offline
Taking time off to work on my car
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Val-haul-ass... eventually
Quote:

...and any suggestions on other opinions would be appreciated.



The rod issue has been raised by a number of people, yet you continue to ignore the legit concern. I don't think you really want other's opinions unless they already fall in line w/ your own.


Re: 440 build Any sugestions? [Re: BradH] #1105949
11/03/11 04:55 PM
11/03/11 04:55 PM
Joined: Mar 2010
Posts: 130
Marcell, MN
68 Roadrunner Offline
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Posts: 130
Marcell, MN
Quote:

Quote:

...and any suggestions on other opinions would be appreciated.



The rod issue has been raised by a number of people, yet you continue to ignore the legit concern. I don't think you really want other's opinions unless they already fall in line w/ your own.






I am getting the same feeling. Lol


1968 Roadrunner 383 auto .060 KB 400 domed pistons, Stealth heads, Torker intake, Holley 830, Lunati Voodoo cam 276/284, .513/.533, TCI 3500, 3.91 gears, all ARP fasteners,
Re: 440 build Any sugestions? [Re: 68 Roadrunner] #1105950
11/03/11 05:12 PM
11/03/11 05:12 PM
Joined: Mar 2009
Posts: 1,058
bigfork mn
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dragram440 Offline OP
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My last mild 440 build had a rod failure. Im certainly not saying they are good rods. I dont have em in mine. My bent rod experience was not good. Im certainly not blaiming the rods on my issues though. Poor machine work none balanced and unfinished cylinders three years of runs and Nitrous was the culpret in my deal. I would certainly agree the rods are the weak link in this build.


67' charger 499 RB 10.57 at 127
Re: 440 build Any sugestions? [Re: dragram440] #1105951
11/03/11 05:20 PM
11/03/11 05:20 PM
Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger Offline
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Sk. Canada
Quote:

Quote:

Quote:

Im sure the LY rods will work fine on a mild build like this one! They are already resized and balanced with the rest of the rotating assembly. Fairly low compression and not to many RPM's and im sure they will live just fine!




Maybe it's just me but it doesn't seem that mild. To me mild would be stock heads with a cam, intake, carb and headers. This sounds like a disaster waiting to happen! Lol



11-1 comp. 3800 converter and 3.91 gears and .590 flat tappet cam is about as mild as it gets. stock heads cam and intake sounds weak. Might as well build a 383 if thats the case!


Stick with the 440. It may not make the same hp but it'll spin the tires real good.

Re: 440 build Any sugestions? [Re: RemCharger] #1105952
11/03/11 05:30 PM
11/03/11 05:30 PM
Joined: May 2004
Posts: 3,210
robin hood country
deaks Offline
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robin hood country
Surely he will have to turn the screw a bit to get the victor's to work.
RPM's would have been a better choice for a 440 with ly rods. If the car is reasonably light, 500 hp would drop into the tens, which could be achieved without having to rev the nuts off it.
Mick


69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36
Re: 440 build Any sugestions? [Re: deaks] #1105953
11/03/11 05:42 PM
11/03/11 05:42 PM
Joined: Mar 2009
Posts: 1,058
bigfork mn
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dragram440 Offline OP
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Quote:

Surely he will have to turn the screw a bit to get the victor's to work.
RPM's would have been a better choice for a 440 with ly rods. If the car is reasonably light, 500 hp would drop into the tens, which could be achieved without having to rev the nuts off it.
Mick



The screw is loose and I think the nuts are already off!


67' charger 499 RB 10.57 at 127
Re: 440 build Any sugestions? [Re: dragram440] #1105954
11/03/11 05:51 PM
11/03/11 05:51 PM
Joined: May 2004
Posts: 3,210
robin hood country
deaks Offline
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robin hood country


69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36
Re: 440 build Any sugestions? [Re: deaks] #1105955
11/03/11 06:46 PM
11/03/11 06:46 PM
Joined: Jul 2010
Posts: 417
reynoldsburg,ohio
poppaj Offline
mopar
poppaj  Offline
mopar

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Posts: 417
reynoldsburg,ohio
If you use stock rods even reconditioned with new bolts they will always be a concern. Better off spending a few hundred now and get a decent set of rods, have the rotating assembly balanced. It will be the best money you can spend at this point.

6902226-IMG_1807.jpg (26 downloads)

AA/NSS 65'Coronet "Whompin Wedge"
Pop & Son Performance 557" B-1 power
John Holt Chassis
Re: 440 build Any sugestions? [Re: poppaj] #1105956
11/03/11 07:51 PM
11/03/11 07:51 PM
Joined: Jan 2003
Posts: 8,938
Holly/MI
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Dean_Kuzluzski Offline
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Holly/MI
Going a step past just throwing yet another opinion out there............

Wouldn't the determining factors of using the LY's be the mass of the piston, rpm's applied and the dutycycle/history of the rods themselves???

A .590 cam and Victor heads do seem to be a bit much with forged KB pistons. Lotsa bobweight slingin' around.

I would think either less cam, read rpm's, or better rods & pistons would be the way to go. Or leave it dialed on "Kahboom".

I'm frugal, but not that cheap.

Last edited by Dean_Kuzluzski; 11/03/11 08:15 PM.

R.I.P.- Gary "Coop" Davis 02/09/68-05/13/04
Re: 440 build Any sugestions? [Re: Dean_Kuzluzski] #1105957
11/03/11 08:08 PM
11/03/11 08:08 PM
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Posts: 16,376
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dogdays Offline
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Dean's right.

Find a way to get piston weight down to smallblock chevy country and those smallblock chevy-sized rod bolts will be able to handle it.

350 chevies and 318s have the same diameter rod bolts as any B/RB non-hemi connecting rod. The rod bolts are the most highly stressed part of the connecting rod.

So no more than a 550 gram piston with 150 gram pin and hold rpm to 6000, where the heads will not even be starting to work. That's no way to go fast.

You do know that the LY rods were the "standard" rod first developed for 413s, right? There is nothing special about them. The 3/8" rod bolts are the weak link, however after several million cycles the rod top end can rip off at high rpm as well. It's kind of a race to see which side fails first.
The 908 heavy rods added mass to the shank which helps eliminate the top ripping off scenario, but which puts more stress on the wimpy 3/8" rod bolts. So now piston weight is even more important. NEITHER is a decent high performance rod. 7/16" rod bolts are a must in a big block that is going to make power.

R.

Re: 440 build Any sugestions? [Re: Dean_Kuzluzski] #1105958
11/03/11 08:15 PM
11/03/11 08:15 PM
Joined: Mar 2009
Posts: 2,461
Sydney,Australia
tex013 Offline
top fuel
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Posts: 2,461
Sydney,Australia
lots of choice
rods - well i'm split.a lighter piston will help,so will less rpm
those heads/cam will more likely want more rpm so
but then the vert is really too small as well
i have rebuilt rods,arp bolts etc, in my 440 but i shift at 6000 trap 63/6400rpm.i have a SRP piston .i won't aim for over 6500 even when i recam it.
heck as others have said put my motor in a Abody run 10's.
put a smaller cam in it but who am i to say i use a purple 509 cam
Tex

Last edited by Tex013; 11/03/11 08:17 PM.
Re: 440 build Any sugestions? [Re: dogdays] #1105959
11/03/11 10:27 PM
11/03/11 10:27 PM
Joined: Nov 2011
Posts: 2
hibbing mn
4
440 valiant Offline
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440 valiant  Offline
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Posts: 2
hibbing mn
i was reading thru the balance card from the machine shop and
piston 694.3
pin 190
total rod 831.6
rotary 1323.8
reciprocating .50%
bob weight is 2497.4

like any build this one has snowballed from a mild 906 head build into something much bigger. im not against changing the rods at this point im way over budget any ways. anyone have a sugestion on a decent rod that wont break the bank

Re: 440 build Any sugestions? [Re: 440 valiant] #1105960
11/04/11 09:55 AM
11/04/11 09:55 AM
Joined: Mar 2009
Posts: 1,058
bigfork mn
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dragram440 Offline OP
super stock
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bigfork mn
OVER BUDGET


67' charger 499 RB 10.57 at 127
Re: 440 build Any sugestions? [Re: 440 valiant] #1105961
11/04/11 09:59 AM
11/04/11 09:59 AM
Joined: Jan 2003
Posts: 13,360
Marion, South Carolina [><]
an8sec70cuda Offline
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Posts: 13,360
Marion, South Carolina [><]
Quote:

anyone have a sugestion on a decent rod that wont break the bank



I'd use K1.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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