Re: 493 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: Lifsgrt]
#664806
04/11/10 12:33 AM
04/11/10 12:33 AM
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Joined: Jul 2007
Posts: 376 FT Campbell, KY / Clarksville,...
The Cuda Guy
OP
enthusiast
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OP
enthusiast
Joined: Jul 2007
Posts: 376
FT Campbell, KY / Clarksville,...
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Jerry, Thanks for chiming in. My builder said the same thing about the life of the valve train, engine ect. I will keep you posted on what I go with, I will be defulting all decsions to the builder as he has 30 years of mopar drag racing experience and engine building and I trust him fully. Sounds like me and you will be running close at the track this next year! See you guys when I get back into town. Don
Street/Strip 73 Barracuda
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Re: 493 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: Lifsgrt]
#664808
10/12/10 01:06 AM
10/12/10 01:06 AM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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my old combo was 493. 10.5-1, 590 mp cam. edel heads, tunnel ram w/six pack. 2" headers. 3" full exhaust. 4000 stall, 4.10s. ran 10.50s at 125 at 3800lbs. i shifted at 5800 if i was you, i would do the 337 intake and port the roof of either stealths or rpm heads to match intake. put the biggest 4150 carb on it. a 1050 quickfuel maybe. i would think about a hydrolic roller cam
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 493 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: 383man]
#664811
10/12/10 04:02 AM
10/12/10 04:02 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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Thank you for serving and your combo is VERY similar to mine too . I would do a roller cam if you can ive battled real bad weather and gremlins this year , but i know this thing will go at least 10.30's or 6.50 1/8th or so ... it did turn a 1.411 60' recently . and a 10.40 last may. But we have had brutal humidity/weather from may thru sept. here ! Get a good converter 4-5k and good rear shocks off the top of my head . And call Hughes Engines if you are trying to pick out a certain cam-- they are a great help and mopar only
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Re: 493 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: The Cuda Guy]
#664813
10/12/10 09:52 AM
10/12/10 09:52 AM
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Joined: Oct 2003
Posts: 3,698 NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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As mentioned the heads are too small for that CID. Id go a little better on heads, but if you cant, CNC them for sure.
As far as a cam, to get to the 11s you dang sure dont need a roller. If that is all you are after, then ya, Id stick with a flat tappet.
Also, IMO dont call anybody listed in this thread for cam suggestions, but Dwayne Porter...nuff said.
Compression, IMO 383Man has it right, shoot for 11.0 to 1....if you are going to run some duration...if your gonna stay with the baby duration then cut back the comp....
Last edited by Von; 10/12/10 09:54 AM.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: 493 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: Von]
#664814
10/12/10 10:59 AM
10/12/10 10:59 AM
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Joined: Jul 2007
Posts: 376 FT Campbell, KY / Clarksville,...
The Cuda Guy
OP
enthusiast
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OP
enthusiast
Joined: Jul 2007
Posts: 376
FT Campbell, KY / Clarksville,...
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I guess I should update this thread a litte since it has taken on life again.
Here is where Im at: 1973 440 Truck Block CNC Stealth Heads Lunati .586 lift solid cam Gridle & Steel Caps Mancini 493 stroke kit 2" Inch Primary Headers Moroso 8qt Oil Pan
Looking into intakes, carbs, harmonic ballancers now.
Currently the engine block is getting all the machine work done it. The engine builder is great at keeping me in the loop and is a great friend.
Also talking through not switching to a exhaust cutout valance and going with a shorter exhaust exit in front of the rear wheels. Currently the car does not have this valance was looking into running it all the way out back, but leaning towards not doing this and going with the shorter exhaust and running some cherry bomb style mufflers stright through design.
Over all goal is to be in the high 10's low 11's. Going to put the cuda on a diet and lose some weight to help this out!
Thanks for the input guys, I appricate all the positive comments! That is what I like about this forum, most like to help out others. Thanks.
Don
Street/Strip 73 Barracuda
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Re: 493 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: The Cuda Guy]
#664815
10/12/10 04:17 PM
10/12/10 04:17 PM
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Joined: Jan 2003
Posts: 4,152 SO. CAL.
70blackfish
master
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master
Joined: Jan 2003
Posts: 4,152
SO. CAL.
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Don,,,just so you know whats coming...you will get your car into the 11's then low 11's then 10's then low 10's then......... yes Im a speed junky
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Re: 493 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: The Cuda Guy]
#664817
10/12/10 04:20 PM
10/12/10 04:20 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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Here is my engine , built by Scot Brown. http://www.buyracingparts.com/dyno-ehead496.htmljust had it freshened up after 800 runs and about 2000 street miles. 3600# with driver It went 10.18 131 mph 1.42 60 foot , that run was in mineshaft air -382 feet. usually goes 10.41
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 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: caper]
#664818
10/12/10 04:43 PM
10/12/10 04:43 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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CAPER, thats a beautiful car
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: 493 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: The Cuda Guy]
#664820
10/12/10 07:35 PM
10/12/10 07:35 PM
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Joined: Dec 2004
Posts: 10,612 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,612
Rittman Ohio
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I love my 493 Street/Strip combo: Eagle crank K-1 rods Wiseco pistons Indy EZ heads from Nick Wilson Comp 588 XTQ series solid flat cam Eddy Performer RPM intake Quick Fuel/Pro-Max 1050 carb. Isky iron rockers done by Gary at RAS 10.9 to 1 compression on pump gas 6.96 @ 97.5 1/8 mile 11.13 @ 125.4 1/4 mile I also STRONGLY recommend the Firecore distributor ,wires and coil Car is 3560# with me,3.54 gear in the rear,3.27 low gear. 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 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: fourgearsavoy]
#664821
10/12/10 07:56 PM
10/12/10 07:56 PM
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Joined: Jan 2003
Posts: 9,924 Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,924
Weddington, N.C.
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I'd definately go with the indy 440-2d intake, 337 flows more on a BIG motor but you don't have enough head onthat combo to make it pay off, the 2D will keep up with 360+ cfm heads....plus the 337 ports are on the small side, need a good bit of work to go to MX and they're really too big to work on a 906 port unless it's opened up a pretty good bit. I'd run a Bullet Hydraulic roller around 258/264 @ .050 on 108 in at 104, you could run a solid roller but the spring pressure you'd need to run it won't be worth the trade off unless you're spinning +6500, my (slightly bigger) bullet spins 6800 without problem and the MW self-ported 440-2d has no trouble keeping up with Chapman Stage VI's Maxies that outflow most BB wedge heads (other than a B-1) on both sides. Bullet sure makes some sweet HR stuff. I thought about a 337 (and I have one all set to go), but my 'little' 517 probably needs another 40 cubes or about a .720+ lift solid roller cam for it to pay off (ie, to gain more power than it gives up in torque/throttle response). Guy's have tested the 337 vs the 2d on some BIG (572") motors with Big heads and it's worth 40-50 over a 2d, but I doubt the spread would be anything close to that on MY 2d (and I offered it up several times) When comaparing a single plane to a dual plane it's generally accepted that a Dual plane wants/needs a bit larger CFM carb to make a fair max HP comparison, you have to compensate for the fact that each intake runner is not exposed to all 4 barrels at WOT like it is when using a single plane. IMO the ultimate street 500" intake would be a ported MW 2d with a 4500 flange The Pro-systems tweaked 1000HP responds like a GP sportbike on my motor: http://www.youtube.com/watch?v=jd8GeXYYkKU
Last edited by Streetwize; 10/12/10 08:22 PM.
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Re: 493 RB Steet/Strip Combo, What Are Your Thoughts???
[Re: The Cuda Guy]
#664823
10/12/10 09:20 PM
10/12/10 09:20 PM
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Joined: Jan 2003
Posts: 18,025 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 18,025
S.E. Michigan
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While I agree this type of combo doesn't really "need" a roller camshaft, when the budget allows I think a mild roller is a good choice. No need to chase down boutique oil or use additives, no break in required are a couple reasons. No doubt a flat tappet will get the job done though.
If done correctly the engine combo should definitely make enough power for high 10s, low 11s in a street/strip type of build in a b/e body...I don't think anyone here would debate that.
The main things I can add are, don't forget about converter, suspension,tires, and the rest of the car.
Myself I have a long way to go on suspension but am getting there over time. To give an idea how much work I have left to do....my battery is still under the hood...and I had stock shocks until fairly recently.....so I'm kinda speaking from experience. 600+HP is nice to have but putting it to the ground is a whole other thing.
For comparison, mine is: '71 casting 400 w/ground/reworked oe 440 crank, 451ci 10.75:1, Diamond/Manley pistons and rods E heads with no porting .630 endurance grind solid roller Home ported Victor, 1000cfm Race Demon 2" super comps, 3.5" X pipe, ultraflows 4500 stall, 4.10 dana wrapped in my rusty b body Best et so far in signature...
No it isn't a 493 but the performance levels are similar and the top end of the motor is very similar. More cubes should make the job easier to do as long as it can be made to hook up.
Rich H.
Esse Quam Videri
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