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Re: 440 Source CNC heads
[Re: rustbucket]
#154483
11/24/08 10:49 PM
11/24/08 10:49 PM
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Joined: Nov 2004
Posts: 1,760
Port Alberni, British Columbia
MoparDonny
top fuel
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top fuel
Joined: Nov 2004
Posts: 1,760
Port Alberni, British Columbia
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Quote:
There is one problem with the heads though. I went to order a set about a month ago and the only way they will sell them is complete with springs for a small cam. I want to run a hydraulic roller so the springs, stc would be useless! Why won't they sell them bare.... or has this changed 
I would think it's because MCH has adjusted the Valvetrain and checked all the clearances in the whole assembly and it's just part of the deal. I would think they could have bare CNC'd ones in the future. What exactly is a smallish cam. I think even the EDDY RPM's can handle up to 600 lift on stock springs, even though they likely won't handle it as I've heard before.
Don.
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Re: 440 Source CNC heads
[Re: moderncylinder]
#154484
11/24/08 10:51 PM
11/24/08 10:51 PM
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Joined: Jan 2003
Posts: 10,000
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,000
Frostbitefalls MN (Rocky&Bullw...
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If i were out to build a 700 hp budget motor, this is where i would start. The heads flow enough to make the power, and the price is right. Put them on a 535 inch rb 4.5 stroke shortblock, shift at 5800 rpm!
Last edited by gregsdart; 11/24/08 10:52 PM.
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Re: 440 Source CNC heads
[Re: moderncylinder]
#154489
11/25/08 10:19 PM
11/25/08 10:19 PM
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Joined: Aug 2003
Posts: 3,095
Idaho
Runner
master
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master
Joined: Aug 2003
Posts: 3,095
Idaho
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Quote:
if its a car quicker than 12.0,, id add the inner
thats interesting, why does et make a differance?
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Re: 440 Source CNC heads
[Re: moderncylinder]
#154491
11/26/08 03:35 AM
11/26/08 03:35 AM
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Joined: Jan 2003
Posts: 2,932
Finalnd, Perkele
jyrki
master
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master
Joined: Jan 2003
Posts: 2,932
Finalnd, Perkele
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this really doesn't make any sence, the ET really hasnät got much to do with the engines accelration rate. How aboout the number of gears, engine rpm range, total gear ratio etc?
Plynouth VIP '67 TT IC EFI
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Re: 440 Source CNC heads
[Re: jyrki]
#154492
11/26/08 08:47 AM
11/26/08 08:47 AM
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Joined: Oct 2004
Posts: 1,752
detroit area
moderncylinder
top fuel
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top fuel
Joined: Oct 2004
Posts: 1,752
detroit area
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its a generalization,, more power the engine makes the quicker it will acclerate the car theefore acclerating the engine/valvetrain quicker,,, common sense.. you could have some 572 with a small hyd cam that has a 2.73 gear that can go 11's , or something to that nature,, that makes my reasoning fail,, but again its a generalization. like a 590 cam in a 4000lb car with a 440 that is pump gas and runs 12.50's,, then take a 590 cam in a 528 or 540 that has high compression in a 2500lb drag car,, the spring requirements are not the same,, again common sense.. i have "general" rules  for setting heads up based on cam, rocker ratios, rear end ratio, total lift, how many gears, how quick the car is overall,, most people put in the rear end ratio to max engine speed at the expected targeted 1320ft mark.
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Re: 440 Source CNC heads
[Re: thecarfarmer]
#154494
11/26/08 12:41 PM
11/26/08 12:41 PM
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Joined: Jan 2003
Posts: 982
mopar heaven
rustbucket
super stock
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super stock
Joined: Jan 2003
Posts: 982
mopar heaven
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Quote:
Quote:
There is one problem with the heads though. I went to order a set about a month ago and the only way they will sell them is complete with springs for a small cam. I want to run a hydraulic roller so the springs, stc would be useless! Why won't they sell them bare.... or has this changed
No mention of getting 'em w/o springs & etc. on their web page; they don't list any heads (ported or not) bare or bare w/ valves.
Kinda' sux, 'cause I have a solid roller, and have already purchased springs/retainers.
-bill
This is my point exactly. If you have parts already why would youbuy them again. Does anyone else make you buy their heads complete!!!!!
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Re: 440 Source CNC heads
[Re: rustbucket]
#154495
11/26/08 12:53 PM
11/26/08 12:53 PM
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Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Quote:
This is my point exactly. If you have parts already why would youbuy them again. Does anyone else make you buy their heads complete!!!!!
If memory serves, brandon's reasoning for this was so many people wanted to buy the heads bare but with valves. He decided that he would just sell the whole thing because you'd still be ahead of the game even if you had to replace the springs/retainers. Probably just easier for him to sell them whole.
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Re: 440 Source CNC heads
[Re: rustbucket]
#154496
11/26/08 01:01 PM
11/26/08 01:01 PM
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Joined: Oct 2004
Posts: 1,752
detroit area
moderncylinder
top fuel
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top fuel
Joined: Oct 2004
Posts: 1,752
detroit area
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maybe he could sell them without the springs and so on,,, maybe he would drop the price 30 dollars or something,, see them for 869.00,,, or even maybe 859.00..
edelbrock does not sell their performer head as a head w valves only,, if you bought the casting and then bought valves you would have the same amount of money as if you bought the assembled head from them.
what i would be asking for is a "race" version with a double spring and 10 degree locks and retainers,,, maybe he could offer that kind of an upgrade for 50-75 bucks more.
jeff
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Re: 440 Source CNC heads
[Re: Dave64]
#154498
11/26/08 02:10 PM
11/26/08 02:10 PM
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Joined: Jan 2003
Posts: 9,670
Lima, Peru
domingo
EL Master
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EL Master
Joined: Jan 2003
Posts: 9,670
Lima, Peru
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Id buy a set with the spring upgrade for sure.
Last edited by domingo; 11/26/08 02:13 PM.
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Re: 440 Source CNC heads
[Re: domingo]
#154499
11/26/08 02:45 PM
11/26/08 02:45 PM
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Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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I bet that 440source doesn't sell them sans springs because it requires a separate SKU/stocking number. The difference of $30 doesn't make economic sense due to potential lost sales from the complete units. Easier to stock one unit for the marginal difference. Heck, if I bought them and didn't want the springs/retainers, I'd give them to someone doing a milder build. If $30 is a budget buster?
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What about weight?? Same as Eddy, more than Eddy or less than the Eddy head??
