IH 466 Long Rod Setup??? March 09, 2018 09:14AM
would there be much advantage to using like a 407 rod or JD rod still using the 4.3 bore and 5.35 stroke?
Any more power or torque with the longer rod?



Edited 1 time(s). Last edit at 03/09/2018 09:45AM by Midnight Harvester.
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Re: IH 466 Long Rod Setup??? March 09, 2018 12:40PM
Not enough difference to amount to anything.
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Re: IH 466 Long Rod Setup??? March 09, 2018 01:38PM
Jd rod has wider bearing
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Re: IH 466 Long Rod Setup??? March 10, 2018 09:12PM
I'd run a 407 rod in before I ever put a 466 rod back in. There's enough difference in the wrist pin placement to make a difference.

A hardened and balanced 407 rod is going to be a better bang for your buck if you're looking at a non-billet route. I saw a tremendous difference in low-end torque between the two sets.
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Re: IH 466 Long Rod Setup??? March 11, 2018 03:28AM
Explain your theory here? Wrist pin placement? Did you change cams at the time you changed rods?
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Re: IH 466 Long Rod Setup??? March 11, 2018 03:35AM
Pretty well accepted theory that a long rod is advantageous.
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Re: IH 466 Long Rod Setup??? March 11, 2018 04:16AM
Accepted maybe, true..... no
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Re: IH 466 Long Rod Setup??? March 11, 2018 04:47AM
The 407 rods are longer than the 466 rod by about .350.

That changes the angle during the revolutions of the crankshaft.
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Re: IH 466 Long Rod Setup??? March 11, 2018 06:09AM
I think 9" rod is pretty common in 466 I have motors.
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Re: IH 466 Long Rod Setup??? March 11, 2018 06:18AM
I agree that a longer rod is better, but your tuning window gets really narrow with a longer rod! Just keep that in mind! Some of big time engine builders are getting away from deck plates for that reason.
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Re: IH 466 Long Rod Setup??? March 11, 2018 02:10PM
Why does it make a small window for tuning?
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Re: IH 466 Long Rod Setup??? March 11, 2018 02:53PM
its the dwell time ......time piston stays at the top of the cylinder before starting back down ..longer rods allows for a longer roll over of the crankshaft before piston speed picks back up going other way ...
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