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#1 |
Registered User
Join Date: Jan 2015
Location: Sweetwater, NJ
Posts: 42
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Very mild 350 camshaft XE vs Voodoo
Gen 1 350 sbc, stock 882 heads, stock exhaust manifolds (for now, will be changing to full length headers by the end of the year), No cats with a 2 inch free flow dual exhaust (will be changing to 2.5 inch mandrel bent with an H pipe when I do the headers), Performer 2101 intake manifold, HEI ignition, stock compression (7.5-8:1 depending on what Ive read). Valvetrain looks immaculate so I'm pretty the heads have been gone over recently. Warmed up Quadrajet with idle tubes drilled out a bit (its the stock carb for a truck so I believe its the larger 750 cfm version). 3:08 posi rear with a 4 speed saginaw on the floor. Motor will never ever see over 5,000 rpm, and that will only happen on occasion. I spend most of time between 1500 and 3000.
Motor is in a 72 C10, 2wd long bed, so about 4000 pounds and some change. I need to do an oil pan, and all the big gaskets so I'm gonna pop a cam in there while I'm at it. Obviously replacing all the lifters, pushrods, and throwing in a double true roller timing set. Looking at the Comp Cams XE250H, XE256H, or the Voodoo 60100. The 60101has alittle too much lift than I'd like and dont want to worry about floating the stock valve springs. Using comps camquest the XE256H looks like the better choice of the two XE grinds making 290 hp and a hair under 400ftlbs. The XE250H trades about 15 hp up top for only 7-8 ftlbs down low. At nearly 400 ftlbs, i dont think id feel the loss of low end torque but could definetly benefit from an extra 15 hp up top. The 60100 spec wise seems to fall right in the middle of these two cams but its on a 112 LSA, leading me to believe it wont be as punchy as I'd like. I also like the XE grinds 110 LSA for a slightly meaner sounding idle without losing drivability. I also think the 350 would benefit more from 110 LSA to help the heavy truck get up and going. While doing my research, i see alot of people say the voodoo's make more power but I cant find a single side to side comparison. From what i can tell, it just seems like theres some trade off's here there between the two grind series. What I'm looking for is anyone who has experience with any of these cams in their truck and what the real world performance is with builds as close to mine as possible. I'd also like to hear from anyone who has experience with both cam lines and if they have a preference of one over the other. I see lots of people bash comp cams quality and attribute to cam lobe failure but honestly think is due to improper cam break in. Any info is appreciated along with anyone who can tell me downsides of these cams. I await your vast amounts of knowledge and experience, you crazy truck heads! |
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#2 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: Very mild 350 camshaft XE vs Voodoo
The voodoo cams are a bit more modern than the xe stuff. They will usually make better power in the range you will be driving. Peak numbers mean nothing unless your bragging to your buddies. Regardless how new your valve springs are CHANGE THEM. The springs need to match the cam. The comp xe and Lunati voodoo grinds both have aggressive ramps and the springs should be changed. Comp did have some issues years ago with soft cores but most issues now are from improper break in or not running enough zinc to keep the cam happy. I personally would go with the 60101 voodoo. That lift will be ok but like I said regardless the cam you choose get new springs to match the cam. With that said any of the cams you are looking at will likely fit your needs and make you happy. Don't put too much faith in the online horsepower calculators. They exist to sell more cams and are usually very very generous on hp and tq numbers.
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#3 |
Registered User
Join Date: Jan 2015
Location: Sweetwater, NJ
Posts: 42
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Re: Very mild 350 camshaft XE vs Voodoo
I will definitely be changing springs when i do the headers, Ive had a previous post where i sorta explained my situation and remember you posting cableguy. Id do the headers and springs all at once with the cam if the studs on the heads werent absolutely trashed. I'm afraid even lightly farting on them will cause breakage and headaches and thats a whole can of worms I dont want to open. If it does turn out the the valves float in the upper rpm then I'll just have to be forced to baby the crap out of it for a few months until the funds become available to move up my time table on the exhaust. The truck is a second vehicle but I am trying to make it daily driver friendly.
The gaskets and oil leaks are my top priority right now and its just too much work involved to not put in a cam. Anyone have any personal experience to share with any of these cams? |
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#4 |
Registered User
Join Date: Jan 2015
Location: Sweetwater, NJ
Posts: 42
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Re: Very mild 350 camshaft XE vs Voodoo
and just cause I'm curious cableguy, what cam would you suggest that wont be so hard on the valvetrain but will still make me happy? I'd like to stick with something alittle more punchy than just your average RV cam.
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#5 |
Senior Member
Join Date: May 2004
Location: Binghamton, NY
Posts: 3,454
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Re: Very mild 350 camshaft XE vs Voodoo
I've used XE cams in a bunch of different motors. I have one now in my 454. Any of the cams will give you more punch than an RV cam.
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2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 6” lift 1999 GMC Yukon 350/4L60 4" SAS |
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#6 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: Very mild 350 camshaft XE vs Voodoo
I would go with the Lunati 60101. While the valve train is apart changing springs only takes a few more minutes. An on the head valve spring compressor and compressed air and your good to go. You really cant go with any decent sized that's worth the effort of making the swap without upgrading valve springs. Stock valve springs are not near stiff enough. Having lifters bounce off the cam because the springs are too weak is BAD. You cannot look at a valve spring and tell their condition or how strong they are. I could hand you 10 identical looking valve springs that are 100lbs or more different in spring pressure. A basic old school rv cam is as far as I would with stock springs and without knowing how old they are I would probably still swap them out.
__________________
Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#7 |
Registered User
Join Date: Jul 2008
Location: Richmond, VA
Posts: 56
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Re: Very mild 350 camshaft XE vs Voodoo
I have used a comp cams xe250h, x4250h, and xe262h. I have also installed two xe250h for friends. They all ran great. I never noticed the "noise" in the xe262h but in all the others I could here the comp cams xe sitting the valves down hard on the seats. Switched to Lunati 60103 in the 69 and I have been very satisfied with it. I agree with Lunati being a more modern grind and the close the valves a lot softer than the comp xe series. Based on the stock nature of your motor and the rpm range I would recommend the Lunati 60100. Definitely replace the springs!
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1990 S10 Reg. cab 2wd 2.5/ 700r4, lowered, soon to be a TBI 350/ 700r4 1993 2500 Reg. cab 4wd 6.5 turbo diesel/ 5spd, bigger turbo, Bull Moose pump, cold air intake, and a few other mods 1969 C10 Reg. cab 2wd 305/350, RHS heads, Voodoo Cam, Gilmer drive, 2400 stall, and lots of other goodies! |
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#8 |
C/10 junkie
Join Date: Nov 2010
Location: Stockton Ca
Posts: 9,093
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Re: Very mild 350 camshaft XE vs Voodoo
Sub'd
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Shawn 70 LWB C10 current driver/project http://67-72chevytrucks.com/vboard/s...d.php?t=663051 68 SWB C10 Work in progress.....SOLD http://67-72chevytrucks.com/vboard/s...d.php?t=559520 72 LWB C10 Sold 71 LWB C10 Sold 68 LWB C10 CST Sold http://youtu.be/kbB0QrBIs9k My mom always had the best advice. It was just a tad late. After a fall that involved blood, she'd say....."Careful!" ![]() |
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#9 |
Registered User
Join Date: Jan 2015
Location: Sweetwater, NJ
Posts: 42
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Re: Very mild 350 camshaft XE vs Voodoo
can anyone point me in the direction of a cheap set of valve springs that will work with these cam choices? Looking for straight drop in springs, with no additional parts or machining. Ive seen some people suggest to others a set for $25 but cant remember where and what and if they will even work for my application. Thanks guys!
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#10 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: Very mild 350 camshaft XE vs Voodoo
Whichever cam you choose. The cam will give you spring specs. Take those specs and go to summit or jegs and find a spring that is close. You can also check http://www.pbm-erson.com/Catalog/PBM . Most machine shops use their branded parts with no issues. I have used their valves springs multiple times.
__________________
Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#11 |
Senior Member
![]() Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Very mild 350 camshaft XE vs Voodoo
I'm running the same year truck, fresh 350 with what was a 3:08 posi (3:73 posi now) and 350 turbo tranny. I put the Voodoo cam kit in it because I tow a 20' trailer with another 72 C-10 on it. http://www.lunatipower.com/Product.aspx?id=2323 I just got back from a 3000 mile hop through Denver, Taos, Santa Fe, Payson, and that old 350 pulled like a train through them mountains! I asked the same question as you and was looking at the same two cams 18 months ago when I was rebuilding the motor. That cam makes all its power right out of the gate from idle up to 5000 rpm. It has excellent vacuum at idle and even has a mild lope. Smear that cam down with that Isky Rev Lube and break-in oil in the crankcase, follow the break-in procedure...I was impressed and I'm running stock heads with hard seats...~Michael~
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" ![]() "Be American, Buy American" ![]() |
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#12 |
Registered User
Join Date: Jan 2015
Location: Sweetwater, NJ
Posts: 42
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Re: Very mild 350 camshaft XE vs Voodoo
What valve springs did you use with that 60101? And just ao Im clear, can i replace valve stem seals while changing the springs?
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#13 |
Registered User
Join Date: Jan 2015
Location: Sweetwater, NJ
Posts: 42
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Re: Very mild 350 camshaft XE vs Voodoo
What valve springs did you use with that 60101? And just ao Im clear, can i replace valve stem seals while changing the springs?
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#14 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: Very mild 350 camshaft XE vs Voodoo
Yes you can change the valve seals at the same time and as a matter of fact its a good idea while everything is apart.
__________________
Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#15 | |
Registered User
Join Date: Jan 2015
Location: Sweetwater, NJ
Posts: 42
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Quote:
Also after looking over everything im gonna go with the xe256h and the matching valve springs. With unported crappy 882's, anything over .450 lift on the intake side will be useless, i like the punchier 110LSA and the valve spring set is reasonabley priced. Can i reuse the retainers and locks? And theres no other machining or modification required as far as i can tell, correct? Posted via Mobile Device |
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#16 |
Registered User
Join Date: Jan 2015
Location: Sweetwater, NJ
Posts: 42
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Re: Very mild 350 camshaft XE vs Voodoo
Unless someone can point me inthe direction of a cheap set of valve springs to match the lunati 60101, their website suggests a set that includes damper springs for $120, and that seems alittle overkill to me. i also cant find the actual specs of valve springs required for that cam, unless im just missing it.
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#17 |
Registered User
Join Date: Oct 2003
Location: Carmichael, California
Posts: 3,006
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Re: Very mild 350 camshaft XE vs Voodoo
The XE and voodoo line are both modern aggressive lobe camshafts but I hate comp so my choice is the voodoo. I wouldnt worry about the lift and floating the valves. You "should" change springs to match but its such a mild camshaft that you can get away with stockers if they have low miles. I once ran a Isky 280 Mega in a 20yr old 327 and used the stock springs and valve flaot wasnt a problem. If you plan a spring change then the Z28 replacement springs will be more than enough and you should be able to get springs and valve seals for less than $100.
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Anthony |
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#18 |
Senior Member
![]() Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Very mild 350 camshaft XE vs Voodoo
Stock springs will work with the 60101 Voodoo Cam...Heres a deal on ebay. http://www.ebay.com/itm/like/301658493935 Either cam is ground for stock height spring perimeters. I did have one failure after about 200 miles, one stud on the #6 cylinder broke off going down the interstate with no load at cruise speed of 70mph. That was the cause of a weakened stud because they were drilled and I think a faulty lifter may played a part as well. I've put 8000 miles on the motor with the 60101 cam and just got back from a 3000 mile trip through the mountains and she's still pulling hard...New springs are always a good idea, staying within the stock perimeters is insurance that the engineering is good and still a little room for error. Comp Cam started offering break-in springs because so many cams were getting wiped right out of the gate. If your not going to be spinning up drag race rpm, you dont need stout springs, especially on these old soft heads.
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" ![]() "Be American, Buy American" ![]() |
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#19 |
Registered User
Join Date: Mar 2012
Location: Georgetown, Texas
Posts: 73
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Re: Very mild 350 camshaft XE vs Voodoo
I put the XE-250H in my '67 K20 8 years ago.
350 w/ Vortec heads dual plane manif with Q-jet beehive springs from LS2 1.94" stainless w/backcuts, 3-angle cut measured static comp 10.1:1 , lost 1cc per chamber due to polishing With 4:56 gears in the Eaton, there was no way I was going to use a cam to pump out work in the higher rpm ranges. Truck spends its life spinning 2000-4000 rpm mostly, no need to rev to 5000+. I wasn't out to impress anyone with a throaty sound, so I put the quietest dynomax mufflers on it. It is soooo quiet !! But tons of torque ! I can tow a house when the sm420 is in first gear ! Thanks to ppl on u-tube, for posting their xe-250h cars with louder mufflers, it is nice to know I can change mufflers and get a cool sound out of it, but I won't do it. I selected that cam also, for long-term reliability. What a great truck, paid 4k and got 6 years of WORK out of it, hauling stuff, etc., and now can sell it for multiples of its orig. price. Yes !!
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'67 K-20 longbed 4X4, 350, SM-420, Vortec heads, flat top 4-brow pistons, Eaton 4.55's, Qjet, MSD 8365, Comp XE250H, Dynomax duals |
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#20 |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,720
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Re: Very mild 350 camshaft XE vs Voodoo
Voodoo has more modern lobe profiles then the XE line.
Those valve springs are old and flimsy, upgrading them is cheap so just get the voodoo cam and live happy.
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-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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Tags |
350, cam, camshaft, comp cams, voodoo |
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