Cam grinder preferences?
#1178131
02/14/12 06:55 AM
02/14/12 06:55 AM
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Joined: Feb 2011
Posts: 4
ND
408_dup7
OP
member
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OP
member
Joined: Feb 2011
Posts: 4
ND
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Just looking for some opinions on cam manufacture? Getting ready to put my 408 together and all I need is a stick. Not sure what grind I should get either, Its going in an 86 W150 (5,600lbs) that will soon have OD w/ 2k rpm stall, 4.10 gears on 33's. Motor; holley 670 SA, RPM performer, 1.625" (pri) 2.5" (coll) headers, 2.5" Full length true dual exh w/ 30" glass packs (no X or H)... KB hyper 9.3:1 dished pistons, RHS X heads 2.02/1.60, Comp bee hives w/ 1.5 rockers, last but not least 7 keyway cam gear. I've heard good things about Engle, Isky, brown, lunati, and comp. Not sure if they all grind on a 904 profile though, probably not necessary for my application but still good to know. I'm guessing somewhere between 220-230 ish dur and 430-475 ish lift is where I'll want to be, but not sure. Also do I want a split or single pattern? This will be a DD pavement pounder / weekend wheeler / tower (2k lbs ave - 6k lbs max). Will se alot of winter driving too. I'd like a noticeable idle but nothing too extreme.
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Re: Cam grinder preferences?
[Re: 408_dup7]
#1178133
02/14/12 11:54 AM
02/14/12 11:54 AM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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There are plenty of companies that CAN grind a good cam. That is not the problem. You want someone who KNOWS how to spec the right cam. There are plenty of us on here who spec and order custom cams all the time. There are plenty of variables that come into play, and getting the " right" cam is ( in my opinion) more than simply oepning a cam catalog and using the footnotes. With all that being said, why would you not use the guy that you purchased your heads from? He has the best chance of knowing your combination, since he already has all that info. I know Brian specs custom cams, and even though I COULD sell you one, as well as others here, I'd suggest using the guy already in your corner. I know if I was building an engine, and I found out the customer was asking for a cam suggestion on the internet, I wouldnt be thrilled. ( I realize IMM isnt building the engine, but you trusted him enough to do the heads right?)Stick with your guy, and let him use his experience to make the right choice for you.  Sounds like a cool project...I miss my old trucks.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: Cam grinder preferences?
[Re: CompWedgeEngines]
#1178134
02/14/12 12:00 PM
02/14/12 12:00 PM
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Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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Quote:
There are plenty of companies that CAN grind a good cam. That is not the problem. You want someone who KNOWS how to sepc the right cam. There are plenty of us on here who spec and order custom cams all the time. There are plenty of variables that come into play, and getting the " right" cam is ( in my opinion) more than simply oepning a cam catalog and using the footnotes. With all that being said, why would you not use the guy that you purchased your heads from? He has the best chance of knowing your combination, since he already has all that info. I know Biran specs custom cams, and even though I COULD sell you one, as well as others here, I'd suggest using the guy already in your corner.
I know if I was building an engine, and I found out the customer was asking for a cam suggestion on the internet, I wouldnt be thrilled. ( I realize IMM isnt building the engine, but you trusted him enough to do the heads right?)Stick with your guy, and let him use his experience to make the right choice for you.
Sounds like a cool project...I miss my old trucks.
 100%, I had RyanJ do my heads for my 408 and he profiled the cam for me, I have not been able to improve on his decision.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: Cam grinder preferences?
[Re: dartman366]
#1178135
02/14/12 12:53 PM
02/14/12 12:53 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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if I were looking at a shelf grind, I'd go lunati voodoo 60402 or 60403 for that combo.
intake to exhaust flow ratio is pretty good with magnum heads, and your exhaust will be relatively unrestrivtive that I don't think you'll NEED a split pattern cam.
custom grinding, I'd go with bullet cams, and this lobe
HC272/336 for both intake and exhaust
specs:
272 dur at .006" 224 @ .050 140 @ .2" .3360" lobe lift, .504" with 1.5 rockers
I'd have it ground on a 112LSA and install it on a 108 ICL.
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: Cam grinder preferences?
[Re: Brian Hafliger]
#1178141
02/15/12 09:59 AM
02/15/12 09:59 AM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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Quote:
Quote:
if I were looking at a shelf grind, I'd go lunati voodoo 60402 or 60403 for that combo.
intake to exhaust flow ratio is pretty good with magnum heads, and your exhaust will be relatively unrestrivtive that I don't think you'll NEED a split pattern cam.
custom grinding, I'd go with bullet cams, and this lobe
HC272/336 for both intake and exhaust
specs:
272 dur at .006" 224 @ .050 140 @ .2" .3360" lobe lift, .504" with 1.5 rockers
I'd have it ground on a 112LSA and install it on a 108 ICL.
That bullet lobe would work great, but I'd put it on a 108lca straight up!
Brian
thanks for making me feel smart  my thoughts were on the wider LSA was that I like a nice idle, and I'd take the slight hit in mid range torque to not have the motor nose over quite so much above the torque peak....I swag'ed the wider LSA would pull good up to about 5500 RPM, if need be...
man, the cam Dave recommended is HUGE for your app, IMHO...personally I think A LOT of guys way overcam their engines....
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: Cam grinder preferences?
[Re: 408_dup7]
#1178142
02/15/12 10:17 AM
02/15/12 10:17 AM
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Joined: Oct 2003
Posts: 1,409
Ont. Canada
10.90 Racer
super street
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super street
Joined: Oct 2003
Posts: 1,409
Ont. Canada
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Quote:
I figured everyone has a preference so I thought I'd ask. I wasnt trying to undermine Brian, he knows his stuff and does great work! I already asked him and he suggested a Comp 218/223 462/473 (idr the lsa). I'll be honest, I'm a lil hesitant to take a race engine builders word for a 4x4 since Dave at hughes suggested a 237/242 548/555 108lsa. This is after we discussed my application from bumper to bumper for 45min. I'm a novice (first motor) so I took his advice, later found out how wrong it was. This was a year ago so I have since edumacated myself some in terms of cam applications. I still dont really have a clue lol, but If someone suggests the above, I now have enough sense to say "yeah right". I'll trust Brian since I've yet to hear bad about him, unlike what Ive read/experianced with Hughes. That and hes extremely nice were as Dave treats you like an incompetent monkey. Brian, If I offended you I apologise. I forgot that your a member here :/. I'll call you first thing tomorrow to order . Dustin
Once you have been around a while you will know the guys that know there stuff...... they always spec cams on the smaller side compared to the masses.............
If someone phones 10 different cam manufactures out of the blue..... they will get 10 different cam grinds......... most won't run any better then the next guys.... But most people will buy the biggest cam spec'd to them, because we all know bigger is better........ That said and with all cam companies knowing this,,,, If you want to sell cams, you better spec them big........
I have many times put smaller cams in engines and they picked up power........
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