Lunati tech says 114 lobe sep cam for my 71 W100 4x4's 383

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

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?

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.

how big are the tires? 33"?

33x12x16.5's. Non beadlocked rims, so 16.5 tires are limited & expensive. I may have to switch to 16"rims.

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.

I'd use the Crower HDP271 grind and install it on a 106 ICL.

Cool truck Buzz !



Ron

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.

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.

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

https://youtu.be/BI0uRHj3sAE

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

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.

Very nice stuff you have there, and doin it right from bottom to top.

That truck is awesome!

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.

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.