Re: 493 engine build advice.
[Re: viperblue72]
#1147517
12/31/11 05:18 PM
12/31/11 05:18 PM
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Joined: Aug 2003
Posts: 43,303 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,303
Bend,OR USA
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My Duster ran 10.69 with the ported 906 iron heads, six pak intake and carbs,512 C.I. with 9.25 to 1 comp. ratio on the old Oregon pump gas in 2005 through the exhaust with the air cleaner on, no tuning other than on the dyno. It was running out of fuel in high gear, I found that out later with the wide ban I changed the heads to a set of Eddy RPM CNC ported by MCH and it ran 10.49 with no other changes, same same on every other part My car weighs 3450 lbs with me in it and a full(stock tank) tank of pump gas with two batterys in the trunk On the converters, I have ran several different ones starting with a custom built 10 inch from Contintental that foot stalled 2300 RPM and flashed to 4200 to 4400 depending on track and weather, I changed it to a T/A O69J race 9 inch built for a SS/AH Hemi( I had taken it in trade on motor work) and picked up a .10 I then tried a T/A race 8 inch(built for the same SS/AH Hemi car) and picked up .2 and almost 3 MPH in the 1/8 These dang Mopars make me feel foolish sometimes, when it comes to theory anyways All three converters drove really nice on the street IHTHs
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 493 engine build advice.
[Re: viperblue72]
#1147518
12/31/11 05:34 PM
12/31/11 05:34 PM
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Joined: Dec 2004
Posts: 10,558 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,558
Rittman Ohio
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Indy EZ heads with some bowl work,mild solid cam,850-950 4150 carb,Firecore ignition system, All can be had with a call to Nick Wilson at www.compu-flow.com Just tell Nick what you want to do Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: 493 engine build advice.
[Re: Cab_Burge]
#1147519
12/31/11 05:42 PM
12/31/11 05:42 PM
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Joined: Aug 2006
Posts: 2,141 junction city oregon
viperblue72
OP
top fuel
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OP
top fuel
Joined: Aug 2006
Posts: 2,141
junction city oregon
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Cab, what cam were you running with that 10.49? I don't know which heads I'm going to run yet. I am thinking about cnc'd stealths or victors. Ill be at 10.6 with stealth and 11 to 1 with victors. I'm guessing a 255@050 and about .600 lift is on target?
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Re: 493 engine build advice.
[Re: Cab_Burge]
#1147521
12/31/11 06:03 PM
12/31/11 06:03 PM
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Joined: Aug 2006
Posts: 2,141 junction city oregon
viperblue72
OP
top fuel
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OP
top fuel
Joined: Aug 2006
Posts: 2,141
junction city oregon
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Cab, Are you running the same shortblock now just with indy heads instead? How much difference is the peak power at from the cnc eddie to the indys? 7600
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Re: 493 engine build advice.
[Re: viperblue72]
#1147522
12/31/11 06:26 PM
12/31/11 06:26 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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If changing heads I would go with the 440-1 heads. For what you are wanting to do now you really don't need them,but later when you want more HP you won't regret buying them. You already have enough cu in now to run the 440-1's.And with them you can port them later when you are ready for 700+ hp!
"To Be The Man'You Have Got To Beat The Man"
"T/D and Pro-Bracket Racer"
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Re: 493 engine build advice.
[Re: tboomer]
#1147526
12/31/11 07:09 PM
12/31/11 07:09 PM
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Joined: Feb 2006
Posts: 698 Alberta Canada
Edge
mopar
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mopar
Joined: Feb 2006
Posts: 698
Alberta Canada
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Indy SR head would work well for you and give you some room to go faster
76 Duster
work in progress
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Re: 493 engine build advice.
[Re: viperblue72]
#1147527
12/31/11 08:03 PM
12/31/11 08:03 PM
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Joined: Aug 2003
Posts: 43,303 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,303
Bend,OR USA
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Quote:
Cab, Are you running the same shortblock now just with indy heads instead? How much difference is the peak power at from the cnc eddie to the indys? 7600
Same short block but I did switch the heads this year, I put a set of Indy SR with M.W. ports and a 400-3 Indy intake, actauly I ran two different intakes and several different carbs this year, the 400-3 and three different 1050 dominators and a Indy 400-2 intake with a 850 Holley D.P. , 4781-6 The car ran low 10.30 and high 10.20 with the 400-2 and 850 Holley and very low tens and a single 9.993 at 134.3 MPH with one of the Dominators in Oct. at Woodburns last test and tune race. The car use to cross the finish line between 6100 and 6200 RPM with the Eddys and six pak, it crosses the finish line right now at 7000 RPM with 4.10 and 12.5 x29.0x15 Goodyears drag slicks, bias plys The best MPH with the old heads and six pak set up was 128.6 MPH but I had fuel delivery problems at that time
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 493 engine build advice.
[Re: Cab_Burge]
#1147528
12/31/11 09:00 PM
12/31/11 09:00 PM
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Joined: Mar 2005
Posts: 525 Can , Nova Scotia , Cape Breto...
caper
mopar
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mopar
Joined: Mar 2005
Posts: 525
Can , Nova Scotia , Cape Breto...
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I shift at peak HP 5600 cross the line 6100. I tried shifting higher car slowed down . When the car ran 10.18 the air was -362 DA , I am not sure what I crossed the line at. It felt like someone put another engine in it.
New best 10.18 , 1.40 60 ft 496 Scott Brown built, street driven 3600 lbs,654 hp , 653 ft tq
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Re: 493 engine build advice.
[Re: caper]
#1147529
01/01/12 12:06 AM
01/01/12 12:06 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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I built a pump gas 493 for my 63 Sport Fury this past year. I used a 440Source kit with the 4.15 crank and dished pistons for pump friendly 10.6 with Indy EZ heads. Solid flat tappet. I have only put 7 passes on it so far with a 10.76 best at just over 3700 lbs. You can see more about it on here http://www.1962to1965mopar.ornocar.com/mmo82008.html if you like. Its the last build under 2011 update. Good luck , Ron
Last edited by 383man; 01/01/12 12:57 AM.
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Re: 493 engine build advice.
[Re: 383man]
#1147530
01/01/12 12:19 AM
01/01/12 12:19 AM
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Joined: Oct 2004
Posts: 5,620 long island NY
Ari440
master
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master
Joined: Oct 2004
Posts: 5,620
long island NY
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511ci
650/292 soild cam
indy sr,s maxwedge ports
440-2 adapter 4500 1050
5000 stall
4.10s 29.5 10.5 15 slicks
3470 pound car
10.40 - 10.20s
1.39 9.85 - 137 mph
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Re: 493 engine build advice.
[Re: viperblue72]
#1147531
01/01/12 07:07 AM
01/01/12 07:07 AM
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Joined: Jul 2004
Posts: 4,384 Worst Weather USA
493_DART
master
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master
Joined: Jul 2004
Posts: 4,384
Worst Weather USA
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Quote:
I have a 72 duster that will be roughly 3300 lbs with the 440/493. Id like to run 10.50s. I'm starting with a 493 shortblock with a 13cc dish piston. Id like to keep shift points to 6500 and have a 3500 conveter and 4.10 gear. What will it take to get mid 10s?
You can easily do that with RPM heads (or well ported iron factory heads)in an A-body. If you have the std port and your cam isnt too wild of duration , you dont "need" to turn it to 6500. Let the big engine use its torque !
Im at 3300 with driver, 493" , 410 gear, 29.5" tire,4500 converter, shift at 5800 (my combo loves this), been 6.46 so far 1/8 mile which is low 10's 1/4 mile. My junk aint fast but it runs pretty good. JUST MY OPINION !
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Re: 493 engine build advice.
[Re: 493_DART]
#1147532
01/01/12 07:50 AM
01/01/12 07:50 AM
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Joined: Oct 2010
Posts: 42 England
pete walton
member
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member
Joined: Oct 2010
Posts: 42
England
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493,,,, Indy SR650,,,,max wedge ports,,, roller cam,,,, bit of compression ,,, nice converter,,,4.88.or 4.56in the axle ..Mine runs 10s all day
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