Roller rocker arms for 440 - pics added
#675872
04/20/10 05:38 PM
04/20/10 05:38 PM
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Joined: Jul 2008
Posts: 179 Up in the North and Far Away
AutoEngineer
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OP
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Joined: Jul 2008
Posts: 179
Up in the North and Far Away
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Hey guys, We're preparing a street/strip 440 for my friend's '69 Charger and I would need your recommendations for roller rocker arms choice The 440 is currently as follows Block: .055 overbored Pistons: forged, measured CR about 9.8 Crank, rods & pistons precision balanced Hydraulic cam: Comp Cams 21-225-4 Duration int/exh: 284/296, duration @ .050" Lift: 240/286, Valve Lift: 0.507/0.510, Cam Lobe-Center Angle: 110, but it was set at 106 Heads: 440Source, almost stock Valve springs: Comp Cams 924-16, Seat load 112 @ 1.900, open load 355 @ 1.200 Intake: Eddy RPM Headers: Hedman 1-3/4" primaries We already bought a set of Proform rockers, but their quality was poor. Bushing machining was very very rough and the arm was a little bit too short to align perfectly with the valve tip. What would you recommend to use with this setup 1.5 or 1.6 rockers and what brand??? I was looking for a set from ebag, PRW Rockers, but had never before heard from them. They looked nice in the picture, but I would not like to try them without any recommendations. The Proform set already was a disappointment, but it was rather cheap. Yes, I can ask myself, can you get good stuff with bottom low price I would also like to have your opinion about the carb. We have a 750 cfm AVS Carter, but should I leave it on the shelf and buy a bigger carb? All comments are more than wellcome Here's link to PRW rockers and a picture PRW Rockers link
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Re: Roller rocker arms for 440
[Re: AutoEngineer]
#675873
04/20/10 06:52 PM
04/20/10 06:52 PM
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Joined: Oct 2004
Posts: 354 Livonia Michigan
440dart
enthusiast
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enthusiast
Joined: Oct 2004
Posts: 354
Livonia Michigan
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How much do you want to spend? Harland sharp would be a good choice, but not cheep! Crane Golds would be ok, if you can find them. Oh and leave the AVS on the shelf
Last edited by 440dart; 04/20/10 06:54 PM.
Yes I live in Michigan, so there is still 1 light on
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Re: Roller rocker arms for 440
[Re: AutoEngineer]
#675874
04/20/10 08:05 PM
04/20/10 08:05 PM
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Joined: Jan 2003
Posts: 6,531 Jacksonville, FL
Chris2581
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master
Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
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I would look for a set of Isky or Crane iron rockers.I'm using the Crane iron rockers on my 440 that is almost the same combo as yours.
750 Holley is what I'd use.
Nautilus Racing- We use Superformance gaskets and Turbo Action converters/products.
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Re: 383man
[Re: 383man]
#675877
04/21/10 09:15 AM
04/21/10 09:15 AM
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Joined: Jan 2003
Posts: 4,733 Moved to N.E. Tennessee
GomangoCuda
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Moved to N.E. Tennessee
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Roller rockers are one of the worst possible places to try to save money. That deserves repeating, Roller rockers are one of the worst possible places to try to save money.
I would use Isky or Crane Iron rockers instead of cheap roller rockers, every time. If you want/need rollers then you need to spend a lot more to get decent ones. Hughes, Crane Gold, Rockerarm Specialist & Harland Sharp come to mind for a mid range rocker. But honestly I think any roller rocker is unnecessary overkill with your cam. I have seen plenty of MP 509 cams run fine with stock stamped rockers but the rocker ratio is a little low with them and will likely cost a little power. I use Isky iron with a cam that has slightly less duration and slightly more lift than yours. The same set of rockers were used with .590 lift for several years with no problems but at that point one of the rollers mentioned above may be more appropriate.
Last edited by GomangoCuda; 04/21/10 09:31 AM.
In theory, there is no difference between theory and practice. In practice, there is.
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Re: Roller rocker arms for 440
[Re: Cab_Burge]
#675879
04/21/10 12:20 PM
04/21/10 12:20 PM
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Joined: Jan 2003
Posts: 4,733 Moved to N.E. Tennessee
GomangoCuda
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master
Joined: Jan 2003
Posts: 4,733
Moved to N.E. Tennessee
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I didn't even mention T&D and Jessel rockers for 2 reasons. 1. you seem to be looking for a budget solution and they aren't it 2. Horrendous overkill for your engine. IMHO even the Sharps are overkill for this engine. I have Sharps on the shelf and Iskys in the motor. Cab: How much $$ does RAS want to fixup the iron rockers like you described? How does the tip alignment and scrub look after changing the ratio?
In theory, there is no difference between theory and practice. In practice, there is.
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Re: Roller rocker arms for 440
[Re: GomangoCuda]
#675886
04/21/10 01:57 PM
04/21/10 01:57 PM
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Joined: Dec 2008
Posts: 136 CHANDLER, AZ
512 VALIANT
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Quote:
Yea, lets put $900 rocker arms on a .510 lift hydraulic cam.
I agree (even after rec hughes brand) this is mild build there is no reason for high $ rockers. Also the 750 cfm should be fine.
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Re: Roller rocker arms for 440
[Re: GomangoCuda]
#675887
04/21/10 02:00 PM
04/21/10 02:00 PM
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Joined: Oct 2003
Posts: 996 Queens, New York
Harley
super stock
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super stock
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Queens, New York
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Quote:
Yea, lets put $900 rocker arms on a .510 lift hydraulic cam.
LOL. Yea $ 900.00 rockers on $ 900.00 heads.
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Re: Roller rocker arms for 440
[Re: AutoEngineer]
#675889
04/21/10 02:37 PM
04/21/10 02:37 PM
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Joined: Jul 2008
Posts: 179 Up in the North and Far Away
AutoEngineer
OP
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OP
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Joined: Jul 2008
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Up in the North and Far Away
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Hi guys, thanx a lot for your answers I have now much more ideas. We have had some kind of budget and already have exceeded it , but the target is to make it right at once. Aim is to have such combo that will deliver many many years of care-free miles. And first of all, BEAT the buddy's neighbour's FORD that is running high 12's. The FORD guy been burning sooo much tire at the front of our MOPAR garage that now it must come to an end. Don't take this too seriously, but half true OK, enough for joking, now back to the facts of this topic. T&D, Jesel and Sharps are out of the budget. Nobody was suggesting the 440 Source rockers, I guess why I was looking at them at an other buddy's garage and I didn't like the tiny needle bearings they have. Some other brands seem to have alike too, like Cat. I have earlier heard that the fulcrum needle bearings have caused excessive wear on the rocker shaft? I was also comparing the prices of ductile iron Isky and Crane, but they seem to more pricey than the Crane Gold set, even at shop list prices without any discounts. Locally I could have a set of 1.6 Crane Gold rockers at an attactive price. Most of the BB Mopar roller rocker sets seem to have offset rockers, left and right, but the PRW's look like they all are identical. Has anyone experience from them? Would you prefer 1.5 or 1.6 ratio? I forgot from the first mail some important specs of the car: Converter: 2800 stall Rear end: 3.73 or 3.91 What do you experts say, could this combo be enough to run high or mid 12's? I know Charger is heavy, so should we break the piggy bank to increase the budget
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Re: Roller rocker arms for 440
[Re: AutoEngineer]
#675890
04/21/10 02:46 PM
04/21/10 02:46 PM
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Joined: Jan 2003
Posts: 6,531 Jacksonville, FL
Chris2581
master
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master
Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
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Look in the engines and race parts for sale sections on this site.I'm sure there was a set of iron Crane's or Isky's for sale.
If that Charger doesn't run 12.40's at least,something is dead wrong.I think it will run faster.
Nautilus Racing- We use Superformance gaskets and Turbo Action converters/products.
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