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?? about push rod angle?? #734874
06/27/10 03:16 PM
06/27/10 03:16 PM
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Central Missouri Fort Leonard...
mopar65 Offline OP
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well i got my rockers redone with the solid spacers and they are on the engine.OK now i have a question about push rod angle what if any is considered good or bad?I am probably worrying about nothing but just checking with you guys that know what they are doing.also i checked the scrub and it is real close to the middle of the valve stem thats how you want it right? thanks Mopar65


3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
Re: ?? about push rod angle?? [Re: mopar65] #734875
06/27/10 03:17 PM
06/27/10 03:17 PM
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Central Missouri Fort Leonard...
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second pic

6056929-100_0764.jpg (376 downloads)

3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
Re: ?? about push rod angle?? [Re: mopar65] #734876
06/27/10 03:22 PM
06/27/10 03:22 PM
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detroit, mi
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Looks ok to me.
Nothing's hitting anywhere, right?
Scrub is good?

Run it!

Re: ?? about push rod angle?? [Re: mopar65] #734877
06/27/10 03:43 PM
06/27/10 03:43 PM
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440Jim Offline
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Those look like standard offset rockers. So pushrod angle should not be an issue.

Lots of guys have been running Indy 440-1 offset rockers which make the intake pushrod angle more severe. But even on low decks, which make it worse with the shorter pushrod, it typically is not an issue.

But with large offset rockers, reducing pushrod angle with large valve spring pressures (700 open) can be helpful; i.e. offset roller lifters.

This is my 440-1 setup on my low deck (400) block. But I am not running much spring pressure (solid, flat tappet cam).


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Re: ?? about push rod angle?? [Re: 440Jim] #734878
06/27/10 04:16 PM
06/27/10 04:16 PM
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Central Missouri Fort Leonard...
mopar65 Offline OP
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wow those are angled pretty good jim. sorry for the confusion the angle i am talking about is the push rod cup to rocker adjuster angle? my question was at max lift is the push rod cup/rocker arm adjuster supposed to be in a straight line? or does it matter? i tried to take a pic of it in the first post but i could never get a very good pic to come out. jim the angle i am asking about is number (4)

http://www.hughesengines.com/Upload/productInstructions/RockerArmBundleinstructions.pdf

thanks bobby


3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
Re: ?? about push rod angle?? [Re: 440Jim] #734879
06/27/10 04:23 PM
06/27/10 04:23 PM
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Quote:


But with large offset rockers, reducing pushrod angle with large valve spring pressures (700 open) can be helpful; i.e. offset roller lifters.





I thought the offset lifter for the pushrod cup was for the exhaust rocker... thats how my 440-1 setup is anyway!


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Re: ?? about push rod angle?? [Re: moparniac] #734880
06/27/10 04:48 PM
06/27/10 04:48 PM
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Great Neck,LI,new york
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Should the pushrods be slightly longer to reduce the amount of adjuster under the rocker??


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Re: ?? about push rod angle?? [Re: moparniac] #734881
06/27/10 05:13 PM
06/27/10 05:13 PM
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440Jim Offline
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Quote:

Quote:


But with large offset rockers, reducing pushrod angle with large valve spring pressures (700 open) can be helpful; i.e. offset roller lifters.





I thought the offset lifter for the pushrod cup was for the exhaust rocker... thats how my 440-1 setup is anyway!


Sledge, I don't see how that would work? I added the blue arrow to my pic to show which direction the rocker offset moves the top of the pushrod (to the right). That puts the pushrod at an angle, and a lifter with the pushrod seat offset toward the exhaust (to the right) would help the intake pushrod angle closer to stock.

I see the original poster (Mopar65) is talking about rocker adjuster to pushrod angle, but this is for Sledgehammer.

Last edited by 440Jim; 06/27/10 05:36 PM.
Re: ?? about push rod angle?? [Re: 440Jim] #734882
06/27/10 05:19 PM
06/27/10 05:19 PM
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I think he is refering to the left right angle when looking at the front of the engine. If that is what he is talking about than ideally you wuold want the adjuster and pushrod in a perfect straight line at 1/2 lift.

For what it's worth a W2 small block has a real bad push rod angle no matter what angle you look at it and people have been running them 7000+ RPM for several decades


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Re: ?? about push rod angle?? [Re: mopar65] #734883
06/27/10 07:27 PM
06/27/10 07:27 PM
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What rockers did you end up going with Bobby ?

Re: ?? about push rod angle?? [Re: 69CHARGERMD] #734884
06/27/10 08:44 PM
06/27/10 08:44 PM
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Crazy angle!!!!


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Re: ?? about push rod angle?? [Re: 69CHARGERMD] #734885
06/27/10 09:06 PM
06/27/10 09:06 PM
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Central Missouri Fort Leonard...
mopar65 Offline OP
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hi doug i ended up staying with the cranes for now.I have the engine ready to go in the car. but it has just been to damn hot lately lol. I hope to have it in tje car by the end of the week. how is the 65 doing? i mean have you mad any passes with the new stuff you did to the car? thanks Bobby


3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
Re: ?? about push rod angle?? [Re: hemi-itis] #734886
06/27/10 09:21 PM
06/27/10 09:21 PM
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Quote:

Should the pushrods be slightly longer to reduce the amount of adjuster under the rocker??


Looks to me like the push rods are too short. This would improve the angle slightly also - and the oiling in the ball/cup area. 1 thread showing is what to shoot for.


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Re: ?? about push rod angle?? [Re: Crizila] #734887
06/27/10 09:41 PM
06/27/10 09:41 PM
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Quote:

Quote:

Should the pushrods be slightly longer to reduce the amount of adjuster under the rocker??


Looks to me like the push rods are too short. This would improve the angle slightly also - and the oiling in the ball/cup area. 1 thread showing is what to shoot for.



are you talking about my engine? i only have around 1.5 to 2 threads showing.thanks mopar65


3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
Re: ?? about push rod angle?? [Re: mopar65] #734888
06/27/10 10:10 PM
06/27/10 10:10 PM
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Quote:


are you talking about my engine? i only have around 1.5 to 2 threads showing.thanks mopar65




Is that good or bad???

Re: ?? about push rod angle?? [Re: mopar65] #734889
06/28/10 08:47 AM
06/28/10 08:47 AM
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Quote:

Quote:

Quote:

Should the pushrods be slightly longer to reduce the amount of adjuster under the rocker??


Looks to me like the push rods are too short. This would improve the angle slightly also - and the oiling in the ball/cup area. 1 thread showing is what to shoot for.



are you talking about my engine? i only have around 1.5 to 2 threads showing.thanks mopar65


I'm looking at the second pic you posted Bob. Just looks like the pivot area is too far away from the bottom of the rocker arm. The closer you can maintain this clearance (without the pushrod hitting the rocker - valve fully open) the better off you will be.


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Re: ?? about push rod angle?? [Re: mopar65] #734890
06/28/10 09:57 AM
06/28/10 09:57 AM
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Quote:

hi doug i ended up staying with the cranes for now.I have the engine ready to go in the car. but it has just been to damn hot lately lol. I hope to have it in tje car by the end of the week. how is the 65 doing? i mean have you mad any passes with the new stuff you did to the car? thanks Bobby


It looks ok to me but I`d have to agree it looks like more than 1.5 threads showing. Also, don`t you run a roller cam and if so ,those cranes could be a weak link......


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Re: ?? about push rod angle?? [Re: Thumperdart] #734891
06/28/10 11:32 AM
06/28/10 11:32 AM
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mopar65 Offline OP
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I was told by the guy that i got my heads from said the cranes would be fine for my engine. he is the one that specked the roller cam for me.For a roller it is soposed to be a mild grind.I thought i did but for right now i do not have the money for the hs.but if i ever get the money saved up i will but them.thanks for all the help.Mopar65


3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
Re: ?? about push rod angle?? [Re: mopar65] #734892
06/28/10 11:46 AM
06/28/10 11:46 AM
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Do you have the springs open #`s handy?


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: ?? about push rod angle?? [Re: Thumperdart] #734893
06/28/10 02:23 PM
06/28/10 02:23 PM
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if i remember right they were arouns 520-530 open pressure.my cam is soposed to be a roller version of the mopar 590 solid cam.thanks Mopar65


3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
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