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426 Hemi Valvetrain Question #3102138
12/14/22 12:54 AM
12/14/22 12:54 AM
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cudagee Offline OP
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I have a question if you guys can help. I am building 472 aluminum Mopar Performance block and heads and like to know if anyone has installed Product Innovation rocker arm assembly. They make roller and non roller styles. The company is based in Canada.

Re: 426 Hemi Valvetrain Question [Re: cudagee] #3102145
12/14/22 01:22 AM
12/14/22 01:22 AM
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Minnesota
Hemi_Joel Offline
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I haven't heard of them before. Hopefully someone can report their experience.


[img]http://i.imgur.com/boeexFms.jpg[/img]
31 Plymouth Coupe, 392 Hemi, T56 magnum
RS23J71
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Re: 426 Hemi Valvetrain Question [Re: cudagee] #3102165
12/14/22 09:06 AM
12/14/22 09:06 AM
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Stuttgart, Arkansas
rickseeman Offline
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I've looked at their stuff on ebay. The prices are sure good. I think I have some of their regular rockers. They look fine. The price is so good I think you should give them a shot. I would buy with the roller rockers.


2011 Drag Pak Challenger
Re: 426 Hemi Valvetrain Question [Re: rickseeman] #3102173
12/14/22 09:28 AM
12/14/22 09:28 AM
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U.S.S.A.
JohnRR Offline
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Originally Posted by rickseeman
I've looked at their stuff on ebay. The prices are sure good. I think I have some of their regular rockers. They look fine. The price is so good I think you should give them a shot. I would buy with the roller rockers.


I have not heard rave reviews for those rockers on ebay. They are cheap for a reason and cheaping out on rockers , especially on a Hemi , is not something one should do. fan


running up my post count some more .
Re: 426 Hemi Valvetrain Question [Re: cudagee] #3102174
12/14/22 09:32 AM
12/14/22 09:32 AM
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Marion, South Carolina [><]
an8sec70cuda Offline
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Look similar to the DLI roller rockers.


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
Re: 426 Hemi Valvetrain Question [Re: an8sec70cuda] #3102229
12/14/22 12:32 PM
12/14/22 12:32 PM
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Motor City
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6PKRTSE Offline
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I almost went with a set of those rockers on my Hemi but choose not to take a chance by cheaping out, so I decided to go with the Barton rocker system.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
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Re: 426 Hemi Valvetrain Question [Re: JohnRR] #3102248
12/14/22 01:27 PM
12/14/22 01:27 PM
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Byron, NY
W.I.N. Racing Offline
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Originally Posted by JohnRR
Originally Posted by rickseeman
I've looked at their stuff on ebay. The prices are sure good. I think I have some of their regular rockers. They look fine. The price is so good I think you should give them a shot. I would buy with the roller rockers.


I have not heard rave reviews for those rockers on ebay. They are cheap for a reason and cheaping out on rockers , especially on a Hemi , is not something one should do. fan

iagree Cheep parts get real expensive runaway
I just tried to search them (Product Innovation) on the WWW and came up empty... Conversely I've been on the lookout for some used rocker for a cackle motor (no Spring pressure or RPM) and these may fit the bill.


'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60
'01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust,
'05 Dodge Magnum R/T - Too Much to list
'60 Willys CJ5
'01 International LPX - Project,DT466, Allison
'64 Plymouth Valiant, Inj 528 Hemi, 2spd
Re: 426 Hemi Valvetrain Question [Re: W.I.N. Racing] #3102298
12/14/22 03:03 PM
12/14/22 03:03 PM
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Taxes & Virus's R-US, NY
Dragula Offline
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I can tell you, I called Indy on a complete set just the other week as I have a brand new Hemi block sitting here, and they are $3600 with everything but push rods, but they are at least 18 weeks or worse as the foundry hasn't made any in a year....Called Barton, and those are $4900 and 10-12 weeks...

I am willing to part with my complete Indy set WITH push rods for less than new so I can upgrade to the Bartons if someone is interested. I can't go $.50 on the dollar, but I could go $.75 on the dollar...And they are available today! Maybe even the block...

I may upgrade anyways and just save these for the other block.

I am in Lockport NY...

Last edited by Dragula; 12/14/22 03:04 PM.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: 426 Hemi Valvetrain Question [Re: Dragula] #3102324
12/14/22 04:36 PM
12/14/22 04:36 PM
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Stuttgart, Arkansas
rickseeman Offline
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I do love the cacklefest videos.


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Re: 426 Hemi Valvetrain Question [Re: W.I.N. Racing] #3102501
12/15/22 10:59 AM
12/15/22 10:59 AM
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Idaho
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boomerodell Offline
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https://www.ebay.com/itm/274044247904?hash=item3fce4f5f60:g:hMEAAOSwcWpbe3Qd

Personally I think they look similar to the Mancini house brand rockers. With the long adjuster and design. Might be worth a call to Mancini first, they will tell you who makes the ones they sell. Also if they are the same company maybe they can give you some feedback. For the roller version they do look like DLI.

https://www.manciniracing.com/indy14.html

Re: 426 Hemi Valvetrain Question [Re: boomerodell] #3102581
12/15/22 03:22 PM
12/15/22 03:22 PM
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Stuttgart, Arkansas
rickseeman Offline
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Their stock and roller rockers looks like the Mopar/DLI


2011 Drag Pak Challenger
Re: 426 Hemi Valvetrain Question [Re: Dragula] #3102634
12/15/22 06:12 PM
12/15/22 06:12 PM
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Canada
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cuda499 Offline
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Originally Posted by Dragula
I can tell you, I called Indy on a complete set just the other week as I have a brand new Hemi block sitting here, and they are $3600 with everything but push rods, but they are at least 18 weeks or worse as the foundry hasn't made any in a year....Called Barton, and those are $4900 and 10-12 weeks...

I am willing to part with my complete Indy set WITH push rods for less than new so I can upgrade to the Bartons if someone is interested. I can't go $.50 on the dollar, but I could go $.75 on the dollar...And they are available today! Maybe even the block...

I may upgrade anyways and just save these for the other block.

I am in Lockport NY...



I bought the barton a little over a year ago and thought they were 3800-4000.... so I checked rays site and they list for 4200.... I wasnt going to chance anything, I know what my plans are with the motor and rocker gear isnt the place to cheap out when you want to run some RPM.... Now with that being said, Ive ran some steel bodied norris rockers, and that motor got shifted at 8k and never had any issues.

Re: 426 Hemi Valvetrain Question [Re: cudagee] #3102680
12/15/22 08:43 PM
12/15/22 08:43 PM
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Hot 340 Offline
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So what do you guys think on the T&D systems. They look better than the Barton stuff tbh.

Re: 426 Hemi Valvetrain Question [Re: Hot 340] #3102705
12/15/22 09:49 PM
12/15/22 09:49 PM
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Stuttgart, Arkansas
rickseeman Offline
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Barton's are T & D's. All 426 Hemi's are hard on the guides.


2011 Drag Pak Challenger
Re: 426 Hemi Valvetrain Question [Re: rickseeman] #3102710
12/15/22 09:54 PM
12/15/22 09:54 PM
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I see that now...I guess I was looking at the setup used for the edelbrock head comparing it to the regular Barton setup..I know the edelbrock is a rolled valve angle head..but the base looks awesome

edel426end.jpg
Re: 426 Hemi Valvetrain Question [Re: cudagee] #3102730
12/15/22 10:38 PM
12/15/22 10:38 PM
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cudagee Offline OP
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I am thinking Bartons also. I wanted to see if anyone used the ones on ebay and to see if they worked well
Thanks guys

Re: 426 Hemi Valvetrain Question [Re: cudagee] #3102741
12/15/22 11:27 PM
12/15/22 11:27 PM
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Anyone here broken a factory Hemi rocker arm as a direct result of arm failure?

Wonder why the bad rap on factory arms. Except the ratios being off from time to time.

Re: 426 Hemi Valvetrain Question [Re: Hot 340] #3102764
12/16/22 05:28 AM
12/16/22 05:28 AM
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Originally Posted by Hot 340
I see that now...I guess I was looking at the setup used for the edelbrock head comparing it to the regular Barton setup..I know the edelbrock is a rolled valve angle head..but the base looks awesome


Does the Edelbrock head not use the typical Barton setup? What would be the reason?


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1970 Plymouth Cuda
1968 Dodge Dart
Re: 426 Hemi Valvetrain Question [Re: A727Tflite] #3102804
12/16/22 11:13 AM
12/16/22 11:13 AM
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Stuttgart, Arkansas
rickseeman Offline
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Originally Posted by Transman
Anyone here broken a factory Hemi rocker arm as a direct result of arm failure?

Wonder why the bad rap on factory arms. Except the ratios being off from time to time.


I don't think anyone has broken one. It's just that the roller rockers look sexier. And in your mind the roller tip has to be easier on the guides. Not that anyone is going to actually be driving a 426 Hemi any miles to speak of. This isn't the old days. I've never torn down a stock street hemi that the guides weren't worn out.


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Re: 426 Hemi Valvetrain Question [Re: rickseeman] #3102806
12/16/22 11:20 AM
12/16/22 11:20 AM
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Originally Posted by rickseeman
Originally Posted by Transman
Anyone here broken a factory Hemi rocker arm as a direct result of arm failure?

Wonder why the bad rap on factory arms. Except the ratios being off from time to time.


I don't think anyone has broken one. It's just that the roller rockers look sexier. And in your mind the roller tip has to be easier on the guides. Not that anyone is going to actually be driving a 426 Hemi any miles to speak of. This isn't the old days. I've never torn down a stock street hemi that the guides weren't worn out.
and you really think a roller tip that operates the full sweep closer to the stem center ISN'T easier on the guides than the stock rockers that hang off the edge of the stem at the beginning of the sweep?

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