Re: 440 Source Roller Rocker arms (any good)
[Re: batt2rm]
#1995190
01/20/16 10:49 PM
01/20/16 10:49 PM
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Joined: Nov 2005
Posts: 1,943 San Angelo, Texas, U.S.A.
1968RR
top fuel
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top fuel
Joined: Nov 2005
Posts: 1,943
San Angelo, Texas, U.S.A.
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I had a set on my 440 for about three years. The quality seemed OK and I didn't have any issues with them. However, after reading a few first-hand accounts of them failing over on the Unlawfl Race & Engine Tech board, I got a little worried and ended up buying a set of Harland Sharps. You may want to post on the Unlawfl board and get some more feedback. Good luck.
"When I'm in a slump, I comfort myself by saying if I believe in dinosaurs, then somewhere, they must be believing in me. And if they believe in me, then I can believe in me." - Mookie Wilson
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Re: 440 Source Roller Rocker arms (any good)
[Re: batt2rm]
#1995193
01/20/16 10:55 PM
01/20/16 10:55 PM
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Joined: Apr 2011
Posts: 1,347 Wahoo Nebr
vette1986
pro stock
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pro stock
Joined: Apr 2011
Posts: 1,347
Wahoo Nebr
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I have a low milage set of source rockers on source shafts with their hold downs I just took off my stroker 505 as I wanted to go the crane route so they would fit under my stock valve covers. They worked great for me for the couple thousand street miles I used them. PM me if you are interested in a very nice used set cheaper than new as I would do $175 for it all plus the shipping. Thanks
1969.5 A12 Bee EV2 1971 Charger RT 1973 Duster tubbed 500 low deck 10.90 monster 3 440 polara vert projects
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Re: 440 Source Roller Rocker arms (any good)
[Re: vette1986]
#1995273
01/21/16 12:55 AM
01/21/16 12:55 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
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Posts: 27,421
Balt. Md
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I have seen a few guys with mild engines run them and be ok but I have also seen some on engines built more and give trouble. My brother has a car in garage right now that ate up the roller bearing in one rocker. Course he has not determined what caused the bearing to go bad. Ron
Last edited by 383man; 01/21/16 12:55 AM.
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Re: 440 Source Roller Rocker arms (any good)
[Re: 383man]
#1995296
01/21/16 01:39 AM
01/21/16 01:39 AM
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Joined: Jul 2007
Posts: 199 TN Hoosier
jb500
member
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member
Joined: Jul 2007
Posts: 199
TN Hoosier
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I have seen a few guys with mild engines run them and be ok but I have also seen some on engines built more and give trouble. My brother has a car in garage right now that ate up the roller bearing in one rocker. Course he has not determined what caused the bearing to go bad. Ron I would bet it is because the rocker shafts are undersized for roller/needle bearings.
Last edited by jb500; 01/21/16 01:40 AM.
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Re: 440 Source Roller Rocker arms (any good)
[Re: busboy]
#1995348
01/21/16 02:53 AM
01/21/16 02:53 AM
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Joined: Jul 2007
Posts: 199 TN Hoosier
jb500
member
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member
Joined: Jul 2007
Posts: 199
TN Hoosier
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"Rocker shafts undersized for roller/needle bearings" ?? Can you elaborate? The shaft needs to be a true .8750 dia (can't recall tolerances) with a hardness in the upper 50's/lower 60's. The reason is to distribute the load evenly to all the needles (no slop) and the hardness is needed to prevent the rollers from digging into the shaft. I found out all this info after the needles in my 440S rockers let go. Stock OEM style shafts were supplied in my kit. To the OP: Remember....cheap parts cost less up front, but twice as much when they fail and even more to clean up the mess. Don't skimp on the rockers.
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Re: 440 Source Roller Rocker arms (any good)
[Re: batt2rm]
#1995657
01/21/16 05:55 PM
01/21/16 05:55 PM
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Joined: Jan 2003
Posts: 5,439 So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,439
So Cal
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Bad place to gamble to save a few $... Valve train components do an incredible task... Use quality proven parts.. IMHO... Why risk an engine.... Just my $0.02....
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Re: 440 Source Roller Rocker arms (any good)
[Re: batt2rm]
#1995849
01/21/16 09:42 PM
01/21/16 09:42 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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NEVER PUT NEEDLE BEARINGS ON A RECIPROCATING SHAFT. EVER.
Why would you want to copy the sorry crap the chevy guys had to use?
Find a rocker that has no needle bearings on the shaft.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: 440 Source Roller Rocker arms (any good)
[Re: madscientist]
#1995965
01/21/16 11:28 PM
01/21/16 11:28 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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I have a set of Sources" offset intake rockers (& regular ex) complete rocker setup but still on the shelf (451 build w super stealth heads)
live every 24 hour block of time like it's your last day on earth
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Re: 440 Source Roller Rocker arms (any good)
[Re: madscientist]
#1996006
01/22/16 12:08 AM
01/22/16 12:08 AM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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NEVER PUT NEEDLE BEARINGS ON A RECIPROCATING SHAFT. EVER. Best answer yet.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: 440 Source Roller Rocker arms (any good)
[Re: Supercuda]
#1996107
01/22/16 03:18 AM
01/22/16 03:18 AM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
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Too Many Posts
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Posts: 21,345
Marysville, O-H-I-O
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I hate '2nd hand stories' of 'my buddy...'
But, I saw the damage first hand, does that count?
They failed. After not many miles. Maybe 1500? Motor was fairly mild too
**Photobucket sucks**
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Re: 440 Source Roller Rocker arms (any good)
[Re: jb500]
#1996110
01/22/16 03:29 AM
01/22/16 03:29 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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"Rocker shafts undersized for roller/needle bearings" ?? Can you elaborate? The shaft needs to be a true .8750 dia (can't recall tolerances) with a hardness in the upper 50's/lower 60's. The reason is to distribute the load evenly to all the needles (no slop) and the hardness is needed to prevent the rollers from digging into the shaft. I found out all this info after the needles in my 440S rockers let go. Stock OEM style shafts were supplied in my kit. To the OP: Remember....cheap parts cost less up front, but twice as much when they fail and even more to clean up the mess. Don't skimp on the rockers. I agree that its not good to scimp on valvetrain parts. I really like my Hughes rockers and shafts I use. They are only roller tipped rockers no needle bearings on the shaft and they have held up very good for me. With the more horror stories about the Source roller rockers I would use the ductile iron Crane or Isky rockers first as I used them for many years on some of my older builds and always had good luck with them. Ron
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Re: 440 Source Roller Rocker arms (any good)
[Re: 383man]
#1996129
01/22/16 04:34 AM
01/22/16 04:34 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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I just checked my Source offset rockers & they do have needle bearings on each end of the rocker arm. I will go light on the spring psi & keep an eye on em. thanks for the heads up as I never woulda suspicioned em
live every 24 hour block of time like it's your last day on earth
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Re: 440 Source Roller Rocker arms (any good)
[Re: RapidRobert]
#1996164
01/22/16 09:37 AM
01/22/16 09:37 AM
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Joined: Aug 2003
Posts: 444 upstate NY
batt2rm
OP
mopar
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OP
mopar
Joined: Aug 2003
Posts: 444
upstate NY
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Wow getting some great help here guys, thanks! I guess I will look at the hughes rockers.
Last edited by batt2rm; 01/22/16 09:38 AM.
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Re: 440 Source Roller Rocker arms (any good)
[Re: Tempest]
#1996213
01/22/16 12:27 PM
01/22/16 12:27 PM
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Joined: Jan 2003
Posts: 5,443 Indiana
YO7_A66
master
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master
Joined: Jan 2003
Posts: 5,443
Indiana
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Using the above picture, look at the spacing between the roller bearings on the top rocker. Now look at the spacing between the roller bearings on this attached picture. I have read that when going to a roller rocker, the more bearing count the better for the load. I have also read that when purchasing a roller bearing rocker, you need to purchase the shaft that is compatible with that bearing. As mentioned previously, the tolerances on the shaft must be held tighter on a roller bearing rocker.
I have seen "new" roller rockers for sale without shafts. They say to use existing shafts or can be used on stock shafts. This would scare me away from purchasing that rocker set. If I was to purchase a roller rocker set, I would want the shafts included.
Good thread!!
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
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