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#204088 - 01/25/09 12:05 PM 440 hydraulic roller camshaft recommendation.
hemi71x Offline


Registered: 01/20/03
Posts: 4256
Loc: Rancho Cordova, California (Sa...
Appears that the camshaft that i have in my Cuda has flattened a couple of lobes that is affecting two cylinders.
I'm all ticked off about that happening, and has pushed me over the edge, in fixing the engine, or selling the whole damm car as is condition.
If i decide to fix this thing, can anyone recommend to me a hydraulic roller camshaft that i can live with, power and performance wise.
Presently the cam in the engine is either a Mopar Performance, street hemi grind, or the ".484" cam.
I really don't remember as it's been quite a number of years that it's been in the engine.
Anyway, the engine is a 71 440, .30 oversize with 6bbl. carburetion. 3:55 8 3/4 Automatic.
Used to run consistant 13.20's at 108 mph with that combination.
Can anyone recommend a ROLLER cam that will equal that performance, or a 12.90's.
I'm sick and tired of flat cams, when i owned my 71 Hemi GTX 4 speed car, and now with my 71 Cuda.
With the poor quality of todays oils, with the zinc taken out, i wan't a roller cam, and be done with it, if and when i fix it.
Anyone's thoughts and comments. Appreciate it.
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#204089 - 01/25/09 12:09 PM Re: 440 hydraulic roller camshaft recommendation. [Re: hemi71x]
Thumperdart Offline


Registered: 07/12/04
Posts: 14144
Loc: behind my drums in ft. of you
Asside from a new cam, I would tear that thing down and thoroughly check everything out.....you`d be surprised how much damage can occur w/just one or two wiped out lobes.
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#204090 - 01/25/09 12:12 PM Re: 440 hydraulic roller camshaft recommendation. [Re: Thumperdart]
hemi71x Offline


Registered: 01/20/03
Posts: 4256
Loc: Rancho Cordova, California (Sa...
Ya, i know, that's what got me so bummed out about this whole mess.
When i had the hemi, it did a number on one of the cylinder bores, when it flattened that cam.
Jim V.
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RF-4C Phantom 69-370 Zweibrucken, Germany

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#204091 - 01/25/09 12:30 PM Re: 440 hydraulic roller camshaft recommendation. [Re: hemi71x]
bobby66 Offline
master

Registered: 07/11/04
Posts: 2680
Loc: Arlington, Texas
You did all right. If that cams been running so long you dont remember what it is then you got your moneys worth. Good luck with the rebuild.
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#204092 - 01/25/09 01:12 PM Re: 440 hydraulic roller camshaft recommendation. [Re: hemi71x]
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 20062
Loc: Oregon
Comp has some hyd roller cams in the catalog as well as drop in lifters. I think Crane also has retrofit hyd roller cams for BB Mopar engines. One of the smaller Comp hyd roller cams should do the trick, either the XR274 or the XR280.

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#204093 - 01/25/09 01:17 PM Re: 440 hydraulic roller camshaft recommendation. [Re: AndyF]
CrAzYMoPaRGuY Offline
I Live Here

Registered: 10/06/04
Posts: 15851
Loc: Canada
Quote:

Comp has some hyd roller cams in the catalog as well as drop in lifters. I think Crane also has retrofit hyd roller cams for BB Mopar engines. One of the smaller Comp hyd roller cams should do the trick, either the XR274 or the XR280.




Any idea if maximum rpms will be affected with the hydraulic roller Andy?
I'm thinking of one in my Jensen, but the .485" hydraulic roller in my 360 motorhome is NOT a "revver" for sure. I just wonder if it's the hydraulic roller, the motorhome as the vehicle, or a combination of both..?
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#204094 - 01/25/09 01:20 PM Re: 440 hydraulic roller camshaft recommendation. [Re: CrAzYMoPaRGuY]
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 20062
Loc: Oregon
Well I don't know the exact limit on those Comp grinds but they'll probably pull to 6200 or maybe a little more. Depends on oil pressure and valve springs and stuff like that. That should be fine for most mild big blocks.

I'm in the process of working with Comp on a project to see if we can run a hyd roller in a 7000 rpm big block with Max Wedge heads. The LS1 guys run speeds like that and more but they have lighter valves and a much better overall engine design so it isn't quite a fair comparison.

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#204095 - 01/25/09 01:29 PM Re: 440 hydraulic roller camshaft recommendation. [Re: AndyF]
SeventyGTX Offline


Registered: 01/20/03
Posts: 10884
Loc: Fallon, Nv
Jim, toss one of those Hemis you have in there and be done with it.
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#204096 - 01/26/09 12:26 AM Re: 440 hydraulic roller camshaft recommendation. [Re: SeventyGTX]
hemi71x Offline


Registered: 01/20/03
Posts: 4256
Loc: Rancho Cordova, California (Sa...
Anyone run those Comp Cams hydraulic rollers that were described in the above posting?
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#204097 - 01/26/09 07:09 AM Re: 440 hydraulic roller camshaft recommendation. [Re: hemi71x]
Streetwize Offline
master

Registered: 01/20/03
Posts: 8946
Loc: Weddington, N.C.
Look at the Hughes grinds....mine revs to 6800 (where I set the shift point, it'll rev higher) with no issues at all....revs fast, just like a solid roller.

http://www.youtube.com/watch?v=jd8GeXYYkKU

Allegedly they're ground by Bullet and are Inverse Flank on a small base circle, they work VERY WELL and they have much more aggressive @.050 and @ .200 numbers than the comps.

I run the Crane Lifters, I think they're stronger/a little better built and they'll allow somewhat higher revs than the comps.
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#204098 - 01/26/09 02:01 PM Re: 440 hydraulic roller camshaft recommendation. [Re: Streetwize]
2boltmain Offline
master

Registered: 07/26/03
Posts: 3166
Loc: MI Allegan county
To do a complete conversion to a roller are we talking around $1300-$1400? Sounds like for non extreme valvespring pressures the Crane ductile iron rocker arms provide durability are a bargain at around $200. From there it goes Crane Gold rollers for $300 then Harlands for $500 and then Comps for $700? I know alot of guys whod like to switch but the cost delays it. My brother went mild hyd roller (240deg @.050) 3 years ago after always running flat tappet hyds and solids. Says he will never go back to flats.

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#204099 - 01/26/09 03:01 PM Re: 440 hydraulic roller camshaft recommendation. [Re: hemi71x]
ou812 Offline


Registered: 01/31/03
Posts: 5124
Loc: SoCal
Quote:

Anyone run those Comp Cams hydraulic rollers that were described in the above posting?




Here's a link to a build we just did using Comp hyd roller cam and lifters. It was a custom grind...
Brian
http://board.moparts.org/ubbthreads/show...rue#Post4962588
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#204100 - 02/24/09 04:29 PM Re: 440 hydraulic roller camshaft recommendation. [Re: ou812]
tpabayflyer Offline
super gas

Registered: 01/20/03
Posts: 1545
Loc: Tampa, FL go bucs/rays!!
I built a 451 sixpack with a crane hydraulic roller cam for a resto project and never used the engine. I am going to use it for another project now and need to upgrade to a solid cam....... I figured it would work just about perfectly with a sixpack intake and be a nice upgrade over a stock style cam..... It is part #689521 and a lift of .509int/.528ex with duration at .050 of 222/230
Shoot me a pm if interested... TBF
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#204101 - 02/24/09 05:28 PM Re: 440 hydraulic roller camshaft recommendation. [Re: hemi71x]
blownzoom440 Offline


Registered: 07/10/05
Posts: 8647
Loc: ELYRIA,OH
there is another post on cams.there is othere info that is needed to help at all.i saved a bunch of cam info to look at for the heck of it.


Attachments
5050463-100_1924.jpg (116 downloads)


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#204102 - 02/24/09 09:24 PM Re: 440 hydraulic roller camshaft recommendation. [Re: blownzoom440]
Classof70Chally Offline
super gas

Registered: 02/03/04
Posts: 3076
Loc: Renton, Wa.
I'm about 2 weeks away from firing up my 440 roller motor for my Sig car. I went with Comps starting retro hyd roller cam which is the XR274hr. The specs are: lift .538int/.534ex, dur @ .050 .224int/.230ex, 106' centerline with 110' lobe seperation. The advertised rpm range for this cam is 1,800 to 5,800. By the time I got done buying the cam, Comp magnum rockers, Comp retro hyd roller lifters, the timing set, new pushrods and the bronze geared oilpump drive I figure I spent just north of $1,700. The rest of the combo is 440 +.030, Diamond pistons with 440Source rods and Stealth heads at zero deck (10.0 to 1). A six pack with Promax prepped carbs and a full balance job. I also wiped a cam and am fed up with playing the "oil game".
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#204103 - 02/25/09 07:50 AM Re: 440 hydraulic roller camshaft recommendation. [Re: AndyF]
BobR Offline
mad man

Registered: 10/01/04
Posts: 7698
Loc: Left Coast
Quote:

Comp has some hyd roller cams in the catalog as well as drop in lifters. I think Crane also has retrofit hyd roller cams for BB Mopar engines. One of the smaller Comp hyd roller cams should do the trick, either the XR274 or the XR280.




I have heard that Crane is going out of business.

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#204104 - 02/25/09 10:15 AM Re: 440 hydraulic roller camshaft recommendation. [Re: BobR]
DaytonaTurbo Offline


Registered: 02/26/03
Posts: 17935
Loc: Manitoba, Canada
Go for the comp XR-280-HR. If memory serves it's 230/236 @ 050 and a little over .550 of lift. Should make for a great street roller without being too hard on the valvetrain.
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#204105 - 02/25/09 11:34 AM Re: 440 hydraulic roller camshaft recommendation. [Re: DaytonaTurbo]
RacerGofKGB Offline
Got The Big One

Registered: 11/02/07
Posts: 1476
Loc: Oh
O/T What oil were you running?
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