solid roller
#1491328
08/26/13 09:37 PM
08/26/13 09:37 PM
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Joined: Jul 2005
Posts: 140 USA
74DS
OP
member
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OP
member
Joined: Jul 2005
Posts: 140
USA
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Hi .... I would like to run a solid lifter roller cam in my 71 340 ; what , if anything do I need to change / modify to run one of these ? Also , any brand recommendations? Thanks in advance !
Last edited by 74DS; 08/26/13 10:16 PM.
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Re: solid roller
[Re: 74DS]
#1491329
08/27/13 01:37 AM
08/27/13 01:37 AM
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Joined: Aug 2003
Posts: 43,230 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,230
Bend,OR USA
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Quote:
Hi .... I would like to run a solid lifter roller cam in my 71 340 ; what , if anything do I need to change / modify to run one of these ? Also , any brand recommendations? Thanks in advance !
New valve springs, valve keepers and retainers set up correctly, new rocker arms for the intended valve spring pressures and RPM, new pushrods bought for the application and probally a better set of rear tires and wheels to hook up the new combination. You will also need to verify that the roller lifters you buy do not expose the lifter oil galley, if it does you will need to have the lifter bores bushed to prevent loss of oil pressure at max lift on the cam If your planning on buying a street solid roller cam buy the complete package and follow the cam makers suggestions on the parts and what to set the spring pressures up and so on
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: solid roller
[Re: 74DS]
#1491331
08/27/13 01:04 PM
08/27/13 01:04 PM
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Joined: Jan 2003
Posts: 31,050 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,050
Oregon
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The guys at Hughes Engines will have everything you need for the conversion. I think the total cost is well over $1000 by the time you buy new rocker arms, springs, pushrods, lifters, cam, distributor gear, timing chain, gaskets, etc.
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Re: solid roller
[Re: 74DS]
#1491332
08/27/13 01:20 PM
08/27/13 01:20 PM
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Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
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master
Joined: Jan 2003
Posts: 5,444
Indiana
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I am talking with a Moparts vendor about a hydraulic roller for my street 340. I was told that I would not have to worry about adjusting valves with this setup and I could still get a performance upgrade with the roller setup. But looking at a hydraulic versus a solid roller, does one have a performance advantage over the other (vacuum, torque, etc.)
Sorry to jump in on your thread, but I thought that this question may become informative. Thanks
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
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Re: solid roller
[Re: 74DS]
#1491334
08/27/13 02:26 PM
08/27/13 02:26 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,376
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I have been searching for material requirements for HR camshafts , so here is the latest wisdom on hydraulic roller vs. solid roller:
For an engine that will redline at less than 7000 rpm, the hydraulic roller is probably better. Also, IMHO, if you have to ask about vacuum, you should be looking at a hydraulic roller.
Now if you are looking for the last ounce of power in a race car and don't give a rat's tail about driveability, the solid roller is the answer.
There is significant overlap between the two types, more so now that so many hydraulic roller cams and engines are out there. That's what is in every new pushrod engine sold in the US.
OF COURSE you can buy a solid roller cam that will have excellent street manners, but why would you want to? Love that tic-tic-tic of the solid lifter? You already have the lifters and the retrofit hydraulics will cost $500? Those would be good reasons.
IF, however, you are starting from scratch the hydraulic roller has advantages and would be what I suggest.
R.
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Re: solid roller
[Re: YO7_A66]
#1491335
08/27/13 03:50 PM
08/27/13 03:50 PM
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Joined: Feb 2007
Posts: 2,578 sweden
1Fast340
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Joined: Feb 2007
Posts: 2,578
sweden
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Quote:
I am talking with a Moparts vendor about a hydraulic roller for my street 340. I was told that I would not have to worry about adjusting valves with this setup and I could still get a performance upgrade with the roller setup. But looking at a hydraulic versus a solid roller, does one have a performance advantage over the other (vacuum, torque, etc.)
Sorry to jump in on your thread, but I thought that this question may become informative. Thanks
i just dont get why all these clueless people are talking about adjusting valves with solid rollers? and yes solidrollers are not for free,but a wiped out flattapet is not for free either.
i have ran solidrollers on the street for quite some time and i have never i repeat never had to adjust my valves. if valvelash changes something else is going south.. set it once and you are done with it.
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Re: solid roller
[Re: Beep Beep]
#1491337
08/27/13 09:45 PM
08/27/13 09:45 PM
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Joined: Feb 2005
Posts: 4,318 Prospect, PA
BSB67
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master
Joined: Feb 2005
Posts: 4,318
Prospect, PA
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A solid roller may, or may not be any harder on parts than a hydraulic. It can be true, but the devil is in the details. With either solid or hydraulic, the lobe profile, and needed valve spring for valve train control with the chosen lobe profile will dictate the abuse the valve train will get. Furthermore, the same limiting factors that apply to a hydraulic flat tappet cam apply to a hydraulic roller cam. The hydraulic plunger can only take so much lift rate, and valve spring pressure.
You can get a solid roller that is nearly as easy on parts as a hydraulic roller and will last a lifetime, and with that you can be assured that you are not giving up performance due to the hydraulic lifter.
If you want an easy, no fuss cam that is quit, and performs better than a hydraulic flat tappet without the concern for eating a lobe, and can afford it, get the hyd. roller. If getting more performance and don't mind the noise and possibly more under hood time, get the solid roller.
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Re: solid roller
[Re: Beep Beep]
#1491338
08/27/13 09:56 PM
08/27/13 09:56 PM
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Joined: Oct 2005
Posts: 6,048 Back home in PA
BulletBob
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Joined: Oct 2005
Posts: 6,048
Back home in PA
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Quote:
As 1Fast340 mentioned, I do check my valve lash on my solid street roller every year, but I never have to change the lash. Don't the wheels on solid rollers lifters need to be inspected after so many miles?
When I ran them in Mopars I never worried Did the once a year at Xmas vacation with all the other stuff.
Now when I ran them in Chevy's it was a once a month thing. No matter what brand of valvetrain.
That's why all the good Chevy stuff uses shaft mounted rockers
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