Re: 440 stroker?
[Re: 70charger512]
#2581641
11/22/18 06:48 PM
11/22/18 06:48 PM
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Joined: Oct 2007
Posts: 4,210 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,210
New York
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Cam around 240@.050 As I said (50 years ago?), that narrows it down to perhaps 20 or 30 cams. What nominal duration? What LSA? What installed ICL? Single or dual pattern?
The reason being is to try and keep some quinch in the combustion chambers THIS^^^ Ideally, the dish would be close to a mirror image of the chamber outline (and flush under the head's quench ledge). IMHO the floor need not be flat if you have enough dome thickness - deeper under the intake position @ .200".
Boffin Emeritus
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Re: 440 stroker?
[Re: 70charger512]
#2581662
11/22/18 07:53 PM
11/22/18 07:53 PM
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Joined: May 2003
Posts: 6,569 Downtown Roebuck Ont
Twostick
Still wishing...
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Still wishing...
Joined: May 2003
Posts: 6,569
Downtown Roebuck Ont
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You might want to consider using a deep reverse dome piston with 24.0 CC instead of a shallow full dish piston with 24.0 CC. The reason being is to try and keep some quinch in the combustion chambers Thats what I was thinking, and I actually emailed 440 source about whether or not theyre dish or reverse dome, and I will ask if theres a way to get reverse dome with their kit. My 440/493 kit from 440Source used Ross pistons so it was a while ago. It was a custom 34cc reverse dome that with OOTB 84cc RPM heads, zero deck and a .039 gasket put me at 8.97:1 IIRC. It makes 600 ft/lbs on 87 regular. In the time it took Ross to finally make the pistons, (3 months. Nice customer service) Brandon had enough orders to make it a shelf stocking piston so I got the custom up charge $$ back. If they still do this piston maybe they can change the pin height for a small fee. Kevin
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Re: 440 stroker?
[Re: Twostick]
#2581665
11/22/18 08:06 PM
11/22/18 08:06 PM
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Joined: Sep 2018
Posts: 257 NC
70charger512
OP
#1 Thread Starter
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OP
#1 Thread Starter
Joined: Sep 2018
Posts: 257
NC
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You might want to consider using a deep reverse dome piston with 24.0 CC instead of a shallow full dish piston with 24.0 CC. The reason being is to try and keep some quinch in the combustion chambers Thats what I was thinking, and I actually emailed 440 source about whether or not theyre dish or reverse dome, and I will ask if theres a way to get reverse dome with their kit. My 440/493 kit from 440Source used Ross pistons so it was a while ago. It was a custom 34cc reverse dome that with OOTB 84cc RPM heads, zero deck and a .039 gasket put me at 8.97:1 IIRC. It makes 600 ft/lbs on 87 regular. In the time it took Ross to finally make the pistons, (3 months. Nice customer service) Brandon had enough orders to make it a shelf stocking piston so I got the custom up charge $$ back. If they still do this piston maybe they can change the pin height for a small fee. Kevin Oh ok thank you, so they do offer custom kits, that helps alot. Im not gonna go that low on compression though, im thinking 10-10.5, maybe 11 if i have to for some reason.
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Re: 440 stroker?
[Re: 70charger512]
#2581701
11/22/18 09:55 PM
11/22/18 09:55 PM
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Joined: Aug 2011
Posts: 2,871 Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,871
Pattison Texas
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yes the 440 source 24cc pistons have a guinch area.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: 440 stroker?
[Re: 70charger512]
#2581747
11/23/18 12:01 AM
11/23/18 12:01 AM
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Joined: Oct 2007
Posts: 4,210 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,210
New York
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Be sure to keep those sharp machined edges exactly as they left the mill, just like jewelry!
Boffin Emeritus
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Re: 440 stroker?
[Re: 70charger512]
#2581757
11/23/18 12:38 AM
11/23/18 12:38 AM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Another thing: alot of people were saying I would need a 2"+ compression height piston, but these are 1.867. How much does compression height matter after all of the other things have been worked out? Read... the... books... If you don't understand the implications of compression heights, you shouldn't be building anything. I'm done with this.
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Re: 440 stroker?
[Re: 70charger512]
#2581789
11/23/18 02:15 AM
11/23/18 02:15 AM
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Joined: May 2015
Posts: 1,134 Lost in Time
Iowan
super stock
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super stock
Joined: May 2015
Posts: 1,134
Lost in Time
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Daily driver that gets 7 miles per gallon, sure.
Have a great day Iowan
"obsolete is neat"
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Re: 440 stroker?
[Re: polyspheric]
#2581795
11/23/18 02:54 AM
11/23/18 02:54 AM
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Joined: Aug 2011
Posts: 2,871 Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,871
Pattison Texas
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Be sure to keep those sharp machined edges exactly as they left the mill, just like jewelry! Absolutely LOL
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: 440 stroker?
[Re: BradH]
#2581969
11/23/18 04:34 PM
11/23/18 04:34 PM
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Joined: Sep 2018
Posts: 257 NC
70charger512
OP
#1 Thread Starter
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OP
#1 Thread Starter
Joined: Sep 2018
Posts: 257
NC
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Another thing: alot of people were saying I would need a 2"+ compression height piston, but these are 1.867. How much does compression height matter after all of the other things have been worked out? Read... the... books... If you don't understand the implications of compression heights, you shouldn't be building anything. I'm done with this. Ok then bye. But im clearly not building this myself. Hollis Page will be. I apologize for asking questions on a website meant for questions...
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Re: 440 stroker?
[Re: 70charger512]
#2581985
11/23/18 05:09 PM
11/23/18 05:09 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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Another thing: alot of people were saying I would need a 2"+ compression height piston, but these are 1.867. How much does compression height matter after all of the other things have been worked out? Read... the... books... If you don't understand the implications of compression heights, you shouldn't be building anything. I'm done with this. Ok then bye. But im clearly not building this myself. Hollis Page will be. I apologize for asking questions on a website meant for questions... It's hard to communicate via the interweb, especially when the topic is as detailed as what you want. On top of that, you are like a fart in a skillet. You are all over everywhere. I'm old enough to tell you've I've seen this before. You want to know it all, and know it now. It doesn't work that way. When you struggle with what compression distance is (nothing more that stroke length/rod length/ deck height) and mix things together, no one has any idea if you are actually teaching with what you are being told, or you are getting more confused. You need to slow down and realize you won't learn this [censored] in a year. Or a decade. It's a lifetime of learning and it only stops when you quit or die. You need to take this like eating an elephant...you do it one bite at a time. What you are doing is trying to take a sip from a fire hose. Read everything you can. Then reread it. It takes a lifetime.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: 440 stroker?
[Re: 70charger512]
#2581986
11/23/18 05:11 PM
11/23/18 05:11 PM
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Joined: May 2015
Posts: 1,134 Lost in Time
Iowan
super stock
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super stock
Joined: May 2015
Posts: 1,134
Lost in Time
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Questions were answered repeatedly very thuroly, its to bad the answers could not be comprehended. This is what hotroding has come to, just assembling parts, you dont have to know what your doing just open a catalog or two and buy parts. I think guys with small block chevys have been doing it for years.
Have a great day Iowan
"obsolete is neat"
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