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Re: Measuring for pushrod length.
[Re: mopar dave]
#2250432
02/09/17 04:48 PM
02/09/17 04:48 PM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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The simple answer on why you have two different length pushrods is ANGLE. The intakes are offset and lean over more to get around the intake port. You lean it over, it has to be longer to cover same distance.
Many motors have 3 different lengths depending on port layout. One exhaust length, a left intake and a right intake length
ALL pushrods flex, nearly impossible to stop it. We have 9/16 intakes and 5/8 exhaust in our motor......they flex. Of course we have 500lbs on the seat and a cam with 1.200 lift
Last edited by Monte_Smith; 02/09/17 04:51 PM.
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Re: Measuring for pushrod length.
[Re: mopar dave]
#2250739
02/10/17 12:01 AM
02/10/17 12:01 AM
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Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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Not this time around. I was told summit racing pushrods are made by trend. Is that true. Never had Mantons and wanted to give them a try. I like my Mantons, very nice pieces,,heard a lot of good about Trend also. 
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: Measuring for pushrod length.
[Re: mopar dave]
#2250769
02/10/17 12:41 AM
02/10/17 12:41 AM
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Joined: Jan 2003
Posts: 11,718
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,718
Portage,michigan
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I don't think anybody makes bad ones. All made out of the same thing
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8
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Re: Measuring for pushrod length.
[Re: B3422W5]
#2250889
02/10/17 04:54 AM
02/10/17 04:54 AM
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Joined: Aug 2003
Posts: 43,214
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,214
Bend,OR USA
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I don't think anybody makes bad ones. All made out of the same thing I really hope you don't believe that  If you where nearer I would ask you to come over and look at some of the pushrods I have had fail  I've bent them, broke them, burned them up and had them wear out The good ones last a lot longer than the not so good ones, especially in racing
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Measuring for pushrod length.
[Re: mopar dave]
#2251073
02/10/17 03:48 PM
02/10/17 03:48 PM
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Joined: Oct 2007
Posts: 4,207
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,207
New York
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The material is less important that the fit & finish + quality control.
Heat treat can be done right, wrong, or not at all, and it's impossible to tell visually.
Not a place to save money. Why? because the difference between great and IDK isn't that big, and that's one less thing you ever have to worry about. Valve train problem? It's not the pushrods.
Some look really rough out of the box, makes you doubt that anyone at the plant gives a $*@#?}.
Examine the ends - if you see radial rings (instead of a smooth glossy surface), those are tiny hacksaw blades waiting to eat your rocker arm.
Examine the tubes where the ends insert - any sign of cracks, fretting, wrinkles, stretching, cut not exactly the same place all around? Danger.
Boffin Emeritus
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