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Re: Low Deck 400 Combos....
[Re: Thumperdart]
#1346838
12/14/12 03:02 PM
12/14/12 03:02 PM
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Joined: Jan 2003
Posts: 19,366
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,366
Las Vegas
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Well if you do try and enter and make the feild you we will do whatever to help out. Crash in the motorhome and we always have food  I say go for it and enter and then the rest can be figured it out.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Low Deck 400 Combos....
[Re: Thumperdart]
#1346840
12/14/12 03:16 PM
12/14/12 03:16 PM
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Joined: Jan 2003
Posts: 19,366
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,366
Las Vegas
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Well Dom anything I can do to help a fellow Mopar brother out I am more than happy to do. Would love to see you come up here with the car and get into the mix.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Low Deck 400 Combos....
[Re: Thumperdart]
#1346842
12/15/12 02:40 PM
12/15/12 02:40 PM
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Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
MRMOPAR622
top fuel
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top fuel
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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I don't know if this combo would be interesting as it requires a after market block,but a Low Deck with a 4.50 bore,4.15 stroke, BME aluminum rods,572-13 heads and a Cams Motion roller camshaft makes a awesome engine.It will rev up like a sbc & make the power of a 572 cu in engine and is faster in the car because of how much quicker it revs.
"To Be The Man'You Have Got To Beat The Man"
"T/D and Pro-Bracket Racer"
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Re: Low Deck 400 Combos....
[Re: Hutch]
#1346845
12/16/12 08:19 PM
12/16/12 08:19 PM
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Joined: May 2004
Posts: 3,210
robin hood country
deaks
master
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master
Joined: May 2004
Posts: 3,210
robin hood country
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Quote:
I have a bit of an odd ball combination but it is a low deck deal based on a 383 so I thought it would still fit the thread. 4.280 bore with a short piston , small dome netting approx 11:1 compression. 6.860 MP lightweight Oliver rods , lightened stock crank with a slight decrease in stroke to 3.360" . MP Stage 6 heads with a small port ,MP 2.14 , 1.81 valves (3/8" stem) , MP 590 solid camshaft, Edelbrock victor 440 manifold with .080 cut off each side to fit the heads properly and a old carb shop 850 carb. This deal is 385 cid and seems to like shifting around 7800 rpm.
Its in a 3100 lb car and has run a best of 9.86 at 135.60 in good air through header mufflers.
Many don't believe its basically a 383 but thats fine. Its very mild , behaves well and has proven to be a great bracket motor for the past 5 years. I have another one of these im going to start pieceing together but I will increase the stroke to 3.600 as the small motor is lacking slightly in the torque department.
Hutch
Please post the video clip of your car again.
Mick
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36
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Re: Low Deck 400 Combos....
[Re: Wax]
#1346847
12/16/12 09:57 PM
12/16/12 09:57 PM
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Joined: Jan 2003
Posts: 296
Ontario Canada
Hutch
enthusiast
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enthusiast
Joined: Jan 2003
Posts: 296
Ontario Canada
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Here's a vid (in car) but its not great. Converter was way too tight and the list goes on. It was a few years ago and I really need to get a new video of it now.Still a 9 second pass in the heat of the day. http://www.youtube.com/watch?v=9K6ard18yo8Hutch
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Re: Low Deck 400 Combos....
[Re: Hutch]
#1346848
12/17/12 11:53 AM
12/17/12 11:53 AM
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Joined: Jul 2012
Posts: 153
Plant city fl
70Dart499
OP
member
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OP
member
Joined: Jul 2012
Posts: 153
Plant city fl
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Another question for the experts, what crank/rod/piston combo would you use for a 512? Would you buy a stroker kit, or piece it together from someone like Ohio crank.
1970 Dart Drag Car
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Re: Low Deck 400 Combos....
[Re: 70Dart499]
#1346849
12/17/12 12:54 PM
12/17/12 12:54 PM
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Joined: Jan 2003
Posts: 9,875
Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,875
Weddington, N.C.
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Most common 512 low deck combo is the 4.25 stroke 6.535 BBC rod and a .990 pin flat top or dish piston with a 1.30-1.32 CH
This 517 low deck has a slightly longer 4.300 stroke (made from offset grinding a 4.15" crank). even with a D dish the motor is still 12:1. The Chapman CNC Max Wedge heads flow 380 cfm and the torque curve of this motor has been the best all-around motor I have personally ever seen...let alone built.
Last edited by Streetwize; 12/18/12 06:13 PM.
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Re: Low Deck 400 Combos....
[Re: Streetwize]
#1346853
12/18/12 11:58 AM
12/18/12 11:58 AM
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Joined: Oct 2012
Posts: 1,106
Northeast
VincentVega
super stock
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super stock
Joined: Oct 2012
Posts: 1,106
Northeast
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There are a lot of low deck stroker threads on here, and being relatively new to this forum, I'm trying my best to keep up to date on all of them.
As someone shopping for a stroker, I initially set my sights on the 440 source 500" kit. I have 400 and 440 blocks, but my car is originally 400, and I'd like to keep it stock looking for appearances. So that sort of rules out tall deck (for now).
The thing that irritates me about the 500" kit is the insanely short piston. I just think that for someone like me, who wants good street performance on cheap gas, that's probably not the right way to go. It just seems like pinging or piston slap might be a larger factor than normal. So I took a look at their 470" kit, and I noticed that one has a shorter rod, so that's going to harm the rod ratio. that also kind of turned me off.
Is this just a game of pick the compromise you can live with the most?
So now I am not sure what to do. I was thinking these store-bought places put together kits with readily available parts, and maybe there are other ways of doing it? I'd like a 470" or bigger but with the longer rod, maybe factory'ish length. Won't see anything higher than 6500, and it will be a 1500-6000 rpm street stump puller type of build. Any tips or combos?
By the way, that 383 sounds awesome!
Looking for 1975 through 1978 B body 4 door sedan sheet metal or parts cars - monaco, fury, coronet. Please let me know
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Re: Low Deck 400 Combos....
[Re: bigtimeauto]
#1346855
12/18/12 06:24 PM
12/18/12 06:24 PM
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Joined: Jan 2003
Posts: 9,875
Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,875
Weddington, N.C.
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A low deck 4.25 stroke with a 6.535 rod has the same rod ratio as a typical 454 Chevy 4" stroke/6.135 rod.....countless thousands of production motors went millions of street miles....and every weekend thousands of bracket racers still run the .060 over 468's turning a LOT more RPM than 6500 reliably. On an RB you can put a fairly long skirt on the slugs since the rod can be longer. On a B with a nominal 9.98" deck the skirt is more limited but still well more than adequate to ensure reliable street service 
Last edited by Streetwize; 12/18/12 06:26 PM.
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Re: Low Deck 400 Combos....
[Re: bigtimeauto]
#1346856
12/18/12 06:24 PM
12/18/12 06:24 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Amsoil Low Deck for sale in Engines For Sale Not a bad little combo at 608 HP on pump gas and actually it was gaining 6HP per 100 RPM at 7300 but thats all we turned it--that was a mistake--shoulda coulda woulda  ( kids not included)
Last edited by crabman173; 12/18/12 06:29 PM.
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