cam choice for 440 with 1960's long ram manifolds?
#2893582
02/27/21 01:49 AM
02/27/21 01:49 AM
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Joined: Feb 2006
Posts: 1,179 Canada
demon
OP
super stock
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OP
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Canada
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Anyone have experience with long ram manifolds? Specifically a good cam for a 440, or a good combo for strong street performance. Here's what I am thinking so far. 440, with 10-1 compression, 440 Source aluminum heads, long ram intake tubes with two 500 cfm Edelbrock AVS2 carbs, block hugger headers, 4 speed, 3.55's in a 3900 lb car. These intakes are great for low-mid range torque, which is exactly what I want. I am leaning toward a hydraulic roller cam, and have heard great things about the Comp Cams XR274HR-10. It is a mild roller, and apparently makes huge torque at the low-mid range like I want. I am not building a drag racer, and have no intentions of high rpm use really. I want huge pulling power, passing power, and easy cruising down the highway at 60 mph. I am not a high speed driver, but love strong acceleration.
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Re: cam choice for 440 with 1960's long ram manifolds?
[Re: 67_Satellite]
#2893628
02/27/21 10:19 AM
02/27/21 10:19 AM
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Joined: Feb 2006
Posts: 1,179 Canada
demon
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OP
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Are you using the really long ones which puts the carb. out over the valve covers? If so, I believe the original engines they were on had a torque peak of 2800 r.p.m. I suppose if you cammed for a peak torque very near that speed you would have pretty good results. Sounds like a candidate for a custom grind,and it's going to be a fairly tame cam. Lots of good folks here can no doubt spec. one for you. Yes, the 30 inch long ram tubes.
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Re: cam choice for 440 with 1960's long ram manifolds?
[Re: demon]
#2893632
02/27/21 10:43 AM
02/27/21 10:43 AM
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Joined: May 2003
Posts: 6,621 Downtown Roebuck Ont
Twostick
Still wishing...
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Still wishing...
Joined: May 2003
Posts: 6,621
Downtown Roebuck Ont
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Are you using the really long ones which puts the carb. out over the valve covers? If so, I believe the original engines they were on had a torque peak of 2800 r.p.m. I suppose if you cammed for a peak torque very near that speed you would have pretty good results. Sounds like a candidate for a custom grind,and it's going to be a fairly tame cam. Lots of good folks here can no doubt spec. one for you. Yes, the 30 inch long ram tubes. There are 2 versions of that setup. Long and short ram. Both 30" but the runner divider on the long ram runs the full length of the runner and the short one doesn't. The short one doesn't run out of breath as quick as the long one does but is extremely rare compared to the long ones. This would also factor into your cam selection. Kevin
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Re: cam choice for 440 with 1960's long ram manifolds?
[Re: Twostick]
#2893672
02/27/21 12:05 PM
02/27/21 12:05 PM
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Joined: Feb 2006
Posts: 1,179 Canada
demon
OP
super stock
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OP
super stock
Joined: Feb 2006
Posts: 1,179
Canada
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Are you using the really long ones which puts the carb. out over the valve covers? If so, I believe the original engines they were on had a torque peak of 2800 r.p.m. I suppose if you cammed for a peak torque very near that speed you would have pretty good results. Sounds like a candidate for a custom grind,and it's going to be a fairly tame cam. Lots of good folks here can no doubt spec. one for you. Yes, the 30 inch long ram tubes. There are 2 versions of that setup. Long and short ram. Both 30" but the runner divider on the long ram runs the full length of the runner and the short one doesn't. The short one doesn't run out of breath as quick as the long one does but is extremely rare compared to the long ones. This would also factor into your cam selection. Kevin As I stated, I have the 30" long runners. Not the "short" versions of the long rams. I am using the more common 30" full divided ram tubes, which are designed for lower rpm.
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Re: cam choice for 440 with 1960's long ram manifolds?
[Re: calrobb2000]
#2893943
02/28/21 01:22 AM
02/28/21 01:22 AM
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Joined: Jun 2013
Posts: 873 Keizer, Oregon U.S.A.
elmor353
super stock
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That cam sounds like way more than what he's looking for. He wants something that will give him lots of torque from idle to about 3000-3500 rpm max. Something around 210-214 duration @ .050, with .435-.440 lift. That would be good from about 1000 to 4000 rpm. Melling MTD-2 fits that bill and they're cheap on RockAuto.
Last edited by elmor353; 02/28/21 01:31 AM.
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Re: cam choice for 440 with 1960's long ram manifolds?
[Re: calrobb2000]
#2893954
02/28/21 02:23 AM
02/28/21 02:23 AM
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Joined: Jan 2003
Posts: 17,547 Las Vegas, NV
6bblgt
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,547
Las Vegas, NV
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hi
i would use the mopar 284 / 528" lift solid close to the original
close to the original WHAT?
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Re: cam choice for 440 with 1960's long ram manifolds?
[Re: calrobb2000]
#2893972
02/28/21 08:56 AM
02/28/21 08:56 AM
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Joined: Mar 2011
Posts: 3,178 Michigan
A727Tflite
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master
Joined: Mar 2011
Posts: 3,178
Michigan
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hi
i would use the mopar 284 / 528" lift solid close to the original
I’m thinking your thinking this is a maxwedge. They had 320/320 x .520 camshafts.
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Re: cam choice for 440 with 1960's long ram manifolds?
[Re: demon]
#2895207
03/03/21 01:40 PM
03/03/21 01:40 PM
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Joined: Aug 2003
Posts: 43,744 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,744
Bend,OR USA
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Which year or type of the three different version manifold do you have? Divided all the way. 1/3 divided or 1/2 the runner divided. I believe Chrysler used those from 1959 having the long non divided and maybe part of 1960 or maybe even in 1961 and then Chrysler engineers shortened the divider to 1/3 and finally to 1/2 divided. None of them were known for high RPM power, above 4500 RPM I've never owned or help tune one of those cars but I did rebuild a 1963 long ram motor for customer a long time ago and I can't remember now which intake it had on it That motor came out of a junkyard in Utah and I'm not even sure which year is was
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: cam choice for 440 with 1960's long ram manifolds?
[Re: demon]
#2895237
03/03/21 02:47 PM
03/03/21 02:47 PM
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Joined: Dec 2003
Posts: 23,295 Here
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 23,295
Here
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Your 3.55's IMO are pointless unless you have some serious rear tires. I like the HYD roller thinking.
In HS in the late 60's I had 413 with LR in my 62 Polara with a mild crane Hyd cam. I added a, at the time, the trick "Varicam" cam sprocket, thinking it would optimize the LR's for my street application. I was a kid, have no real idea how well it really worked, but it needed a specially curved Dist to work properly. It sure was all done over 5,000rpm.
" All sorts of things can happen when you are open to new Ideas" Inventor of Kevlar
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Re: cam choice for 440 with 1960's long ram manifolds?
[Re: Sniper]
#2895366
03/03/21 07:47 PM
03/03/21 07:47 PM
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Joined: Aug 2003
Posts: 43,744 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,744
Bend,OR USA
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Who spins it over 5000 rpm on the street??
Me, every chance I get But not one of those long ram motors
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: cam choice for 440 with 1960's long ram manifolds?
[Re: Sniper]
#2895550
03/04/21 11:07 AM
03/04/21 11:07 AM
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Joined: Aug 2011
Posts: 2,905 Pattison Texas
CSK
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master
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Pattison Texas
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you need a cam in the 220ish@.050 & a wide LSA, 112 to 114 , the wide LSA keeps the exhaust pulse from affecting the ram pulse that the LONG runner creates , I would lean more to the 114 LSA, I would also cut a 30dg back cut on the intake valves ONLY, not the exhaust valves , I would also install the intake lobe @ 106 to 108
Last edited by csk; 03/04/21 12:24 PM.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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