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Lunati tech says 114 lobe sep cam for my 71 W100 4x4's 383 #2640295
04/02/19 04:12 PM
04/02/19 04:12 PM
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Blairsden, CA
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Triggerfish Offline OP
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Ok, I talked to a cool sales rep & also a tech at Lunati about the best Voodoo cam for my 71 W100's new 383. The block was decked & forged pistons are .018 above the deck. Stock 440 Source heads (80cc) w/ single springs , headers, Weiand dual plane intake, maybe Holley vacuum 750 or Eddy AFB, big tires (33x12.5x 16.5) and 3.55 gears (soon changed to a 518 w/ 3.91's or 4.10's with OD).. Might tow once in a while open car trailer, etc. The tech says the 703 cam with a 114 Lobe sep is better than the 112 lobe sep 702.
Would sure appreciate your info on which is best & here's the specs:

1. LUN-10230702LK
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 1,400-5,700
Intake Duration at 050 inch Lift: 220
Exhaust Duration at 050 inch Lift: 226
Duration at 050 inch Lift: 220 int./226 exh.
Advertised Intake Duration: 262
Advertised Exhaust Duration: 268
Advertised Duration: 262 int./268 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.475 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.494 in.
Valve Lift with Factory Rocker Arm Ratio: 0.475 int./0.494 exh.
Lobe Separation (degrees): 112
Camshaft Gear Attachment: 3-bolt
Computer-Controlled Compatible: No
Lifters Included: Yes
Lifter Style: Hydraulic flat tappet
Valve Springs Included: No
Retainers Included: No
Locks Included: No
Valve Stem Seals Included: No
Timing Chain and Gears Included: No
Assembly Lubricant Included: Yes
Pushrods Included: No
Rocker Arms Included: No
Gaskets Included: No
Valve Springs Required: Yes

2. Lunati Voodoo 703 cam
Manufacturer's Part Number:10680703
Product Line:Lunati Voodoo Camshafts
Summit Racing Part Number:LUN-10680703
Cam Style:Hydraulic flat tappet
Basic Operating RPM Range:2,000-6,000
Intake Duration at 050 inch Lift:226
Exhaust Duration at 050 inch Lift:234
Duration at 050 inch Lift:226 int./234 exh.
Advertised Intake Duration:268
Advertised Exhaust Duration:276
Advertised Duration:268 int./276 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:0.527 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:0.547 in.
Valve Lift with Factory Rocker Arm Ratio:0.527 int./0.547 exh.
Lobe Separation (degrees):110
Computer-Controlled Compatible:No
Grind Number:VD-AMC6-226
Valve Springs Required:Yes

Towing the 64 426 Commando home small file.jpgBuzz PW 1 small file.jpg
Last edited by Triggerfish; 08/13/19 09:05 PM.
Re: Best cam for my 71 W100 4x4's 383? [Re: Triggerfish] #2640368
04/02/19 07:12 PM
04/02/19 07:12 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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Off the top of my head I’d say it’s too big for what you’re doing with the vehicle....... especially with the bigger heads and bigger valves.

Did you measure the deck clearance and cc a chamber or two?


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Best cam for my 71 W100 4x4's 383? [Re: fast68plymouth] #2640392
04/02/19 07:52 PM
04/02/19 07:52 PM
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Blairsden, CA
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Triggerfish Offline OP
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Haven't measured the deck clearance yet but once we get the rotating assy balanced we'll see what it is. We'll try to CC a chamber or maybe 440 Source can do that for me if I take a head by their shop.
Cam specs said RV or towing, so I figured it'd be better than stock.

Re: Best cam for my 71 W100 4x4's 383? [Re: Triggerfish] #2640418
04/02/19 08:40 PM
04/02/19 08:40 PM
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central texas
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krautrock Offline
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how big are the tires? 33"?

Re: Best cam for my 71 W100 4x4's 383? [Re: krautrock] #2640465
04/02/19 10:06 PM
04/02/19 10:06 PM
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Blairsden, CA
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Triggerfish Offline OP
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33x12x16.5's. Non beadlocked rims, so 16.5 tires are limited & expensive. I may have to switch to 16"rims.

Re: Best cam for my 71 W100 4x4's 383? [Re: Triggerfish] #2640479
04/02/19 11:11 PM
04/02/19 11:11 PM
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Michigan
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Get-X Offline
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Michigan
That's a awesome truck man, really cool looking old Dodge! I wouldn't be afraid to run that cam with 4.10 gearing and a big block. You didn't mention where you thought you'd end up with compression, but if it's anywhere near 10 to 1 I think the combination is sound and it should make good torque and mid-range power.


'65 Belvedere
'68 GTX
'57 Dodge pickup
Re: Best cam for my 71 W100 4x4's 383? [Re: Get-X] #2640483
04/02/19 11:41 PM
04/02/19 11:41 PM
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Ontario,Canada
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firefighter3931 Offline
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I'd use the Crower HDP271 grind and install it on a 106 ICL.

Cool truck Buzz ! up



Ron

Re: Best cam for my 71 W100 4x4's 383? [Re: Get-X] #2640633
04/03/19 11:45 AM
04/03/19 11:45 AM
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Blairsden, CA
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Triggerfish Offline OP
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thanks & I'd like to change gears if I get the 518 trans installed. 3.91's or 4:10's would be great with an OD & a friend who does 518 conversions has one waiting. 1st cam I had in it 10 yrs ago was way to big & when we changed it a few yrs ago, cam was too small. So I'll do what Dwyane advises & check what the compression will be.

Re: Best cam for my 71 W100 4x4's 383? [Re: firefighter3931] #2640635
04/03/19 11:52 AM
04/03/19 11:52 AM
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Blairsden, CA
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Triggerfish Offline OP
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Thanks Ron & hopefully I'll see what the compression will be and check with Dwyane on that cam. I may be selling the truck next summer, so gotta be sure it runs great. I didn't stroke the 383 cause I want the best mpg with some performance.

orange peel interior 2.jpg
Re: Best cam for my 71 W100 4x4's 383? [Re: Triggerfish] #2640927
04/03/19 09:11 PM
04/03/19 09:11 PM
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Chicago, IL
TonyS451 Offline
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Love your truck! I wish I never sold my 71. I had a 400 and ran the comp xe268 cam. Made good power and had a nice sound too. Didn't do any towing, just cruising. My engine was 9-1, mildly worked stock heads Holley sd intake and 750 edelbrock carb. Again, awesome truck you have there up

[Linked Image]

[Linked Image]


2 kids and a dog
Re: Best cam for my 71 W100 4x4's 383? [Re: TonyS451] #2640929
04/03/19 09:22 PM
04/03/19 09:22 PM
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Posts: 4,283
Chicago, IL
TonyS451 Offline
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https://youtu.be/BI0uRHj3sAE

In case you want to hear how it sounds ...


2 kids and a dog
Re: Best cam for my 71 W100 4x4's 383? [Re: TonyS451] #2640960
04/03/19 11:37 PM
04/03/19 11:37 PM
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Blairsden, CA
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Triggerfish Offline OP
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Awesome shortbed Sweptline you had Tony & really sounded good,too. Liked the black dog dish & hubcaps. Your 400 looked like the 70 383 from my Challenger that was in my 71 W100 for yrs & now its in my 68 D100. Hope my new 383 sounds as good as your 400.

D100.jpg68 D100 restored frame and 383 Magnum small file.jpg383 Magnum done for D100.JPG
Re: Best cam for my 71 W100 4x4's 383? [Re: Triggerfish] #2640996
04/04/19 06:43 AM
04/04/19 06:43 AM
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Posts: 4,283
Chicago, IL
TonyS451 Offline
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Very nice stuff you have there, and doin it right from bottom to top.


2 kids and a dog
Re: Best cam for my 71 W100 4x4's 383? [Re: Triggerfish] #2642020
04/06/19 04:10 PM
04/06/19 04:10 PM
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B.C.
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mk_ Offline
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That truck is awesome!

Re: Best cam for my 71 W100 4x4's 383? [Re: mk_] #2642021
04/06/19 04:14 PM
04/06/19 04:14 PM
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Blairsden, CA
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Triggerfish Offline OP
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Thanks & waiting to get the W100's 383 assembled & the D100 was just painted real Sublime & just waiting to get the bed back on & new tail lights hooked up. Lots of car shows close by coming up soon, so gotta get these both finished.

Re: Best cam for my 71 W100 4x4's 383? [Re: fast68plymouth] #2684503
08/04/19 10:31 PM
08/04/19 10:31 PM
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Triggerfish Offline OP
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Originally Posted by fast68plymouth
Off the top of my head I’d say it’s too big for what you’re doing with the vehicle....... especially with the bigger heads and bigger valves.

Did you measure the deck clearance and cc a chamber or two?

Dwyane, the forged pistons are .018 above the deck & we didn't CC the 440 Source heads, but if they're close to 80CC
as advertised, what would be a good performance / RV cam? The 383 also has headers & a Weiand dual plane intake.
Thanks again for the advice.







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