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423” Indy TA head dyno 🙃 #2682154
07/28/19 09:50 PM
07/28/19 09:50 PM
Joined: Jan 2003
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PA
W5DART66 Offline OP
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Re: 423” Indy TA head dyno 🙃 [Re: W5DART66] #2682155
07/28/19 09:53 PM
07/28/19 09:53 PM
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PA
W5DART66 Offline OP
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Re: 423” Indy TA head dyno 🙃 [Re: W5DART66] #2682196
07/29/19 12:12 AM
07/29/19 12:12 AM
Joined: Nov 2004
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pacific northwest
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Stroker Scamp Offline
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pacific northwest
very nice, anything done to the manifold? Whats the complete build?


footbrake N/A SB 408 Scamp 10.10 @ 132 street/strip
73 Duster 340 street strip 12.79 @ 105
Re: 423” Indy TA head dyno 🙃 [Re: W5DART66] #2682217
07/29/19 06:41 AM
07/29/19 06:41 AM
Joined: Jul 2019
Posts: 194
Springtown Pa
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Ray408G3Hemi Offline
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Springtown Pa
Originally Posted by W5DART66


The guy who built my G2 and G3 Hemis told me I should follow you here on Moparts.....I can see why now.

Question for you , the Intake you designed , how do you think it would work on this with 423, or would there be too much port match work to make it feasible?


1963 Thunderbolt 496FE 10.80 (still a work in progress)
1968 Mustang slow a$$ 428 FE
1971 Boss 351 Mustang 11.20@115mph
1993 Lightning 10.61 @ 129mph 408Ci A3 headed NA
1996 Viper GTS
2001 Lightning 8.99 @ 155MPH 5.4 Mod Motor
2009 Ram 9.65@144MPH 463CI G3 NA
2010 Challenger 9.91 @ 139MPH 408CI G3ci NA
2019 F150 (local dealer's Lightning package) ..11.90s

Re: 423” Indy TA head dyno 🙃 [Re: W5DART66] #2682309
07/29/19 11:22 AM
07/29/19 11:22 AM
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Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
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Bend,OR USA
It looks like you did some carb. tuning between the two pulls, did you?
Did you do any other pulls higher to find the peak HP RPM?
What fuel are you using? I like the way those plugs look up

Last edited by Cab_Burge; 07/29/19 11:24 AM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 423” Indy TA head dyno 🙃 [Re: Cab_Burge] #2682341
07/29/19 12:42 PM
07/29/19 12:42 PM
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Posts: 1,237
North Central, Indiana
Roughbird72 Offline
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Roughbird72  Offline
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North Central, Indiana
Nice up


72 Plymouth Roadrunner 11.08@123.25
Re: 423” Indy TA head dyno 🙃 [Re: Roughbird72] #2682396
07/29/19 03:22 PM
07/29/19 03:22 PM
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bean town ....Ca
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WHITEDART Offline
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bean town ....Ca
Brett the Mopar Community owes you greatly thank you for your push an R&D of the small block Mopar..


In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: 423” Indy TA head dyno 🙃 [Re: WHITEDART] #2682439
07/29/19 05:03 PM
07/29/19 05:03 PM
Joined: Aug 2007
Posts: 498
El Dorado Ca
6
65signet Offline
mopar
65signet  Offline
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Posts: 498
El Dorado Ca
I love the small block, that is very impressive with an Edelbrock manifold


1965 Plymouth Barracuda 273 M/SA
1970 Plymouth Duster 360/904 10.60s with J heads
Re: 423” Indy TA head dyno 🙃 [Re: W5DART66] #2682493
07/29/19 07:14 PM
07/29/19 07:14 PM
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Oregon
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AndyF Offline
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Oregon
Nice looking engine. I see you're running one of my motor plates. Looks good on there. I always figured the serious SB engine guys like you would want the two piece billet timing cover I designed for those engines but they didn't sell very well. Maybe just too expensive although I would suspect that someone has at least $25,000 in that engine if not more.

Re: 423” Indy TA head dyno 🙃 [Re: W5DART66] #2684291
08/04/19 11:52 AM
08/04/19 11:52 AM
Joined: Feb 2007
Posts: 2,578
sweden
1
1Fast340 Offline
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sweden

That is some absolutly crazy numbers from a "stockstyle replacement head" with relocated pushrods up

could you share any more information about the build? i do understand that you dont want to overshare on a build like that.

Re: 423” Indy TA head dyno 🙃 [Re: 1Fast340] #2684391
08/04/19 06:17 PM
08/04/19 06:17 PM
Joined: Jun 2005
Posts: 301
central Pa.
7
71Pan Offline
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71Pan  Offline
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Posts: 301
central Pa.
Awesome hp numbers Indy Heads ? did you port or customer supplied

Re: 423” Indy TA head dyno 🙃 [Re: 71Pan] #2685444
08/07/19 06:29 PM
08/07/19 06:29 PM
Joined: Jan 2010
Posts: 1,440
NW Chicago suburban area
Mopar Mitch Offline
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Mopar Mitch  Offline
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NW Chicago suburban area
T/Anks for sharing the info!!


Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
Re: 423” Indy TA head dyno 🙃 [Re: Mopar Mitch] #2685514
08/07/19 09:38 PM
08/07/19 09:38 PM
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Posts: 8,005
Tulsa OK
Bad340fish Offline
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Tulsa OK
I saw some facebook video where this motor(I believe) ran 6.teen in an early B-body.


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: 423” Indy TA head dyno 🙃 [Re: Bad340fish] #2685814
08/08/19 08:25 PM
08/08/19 08:25 PM
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Posts: 1,784
PA
W5DART66 Offline OP
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https://youtu.be/6oTQf5IhsDw

First pass off the trailer 6.13 110 mph
Had something wrong with 3rd gear in the transmission so that pass was first and second gear from what I can figure.
Rolled through the 1/4 9.98 at 113.
Car is 3300lbs with him in the seat.

I feel if it makes a good pass it should go 5.90s 113-114mph

Cool to see B-body with a small block in it.

Good job
Mike and Gene Hutchins.

Re: 423” Indy TA head dyno 🙃 [Re: W5DART66] #2685908
08/09/19 08:01 AM
08/09/19 08:01 AM
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Posts: 4,003
Shelby Twp. Mi
HardcoreB Offline
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Just your average 800HP edelbrock street-headed small block. up

Re: 423” Indy TA head dyno 🙃 [Re: HardcoreB] #2685930
08/09/19 09:20 AM
08/09/19 09:20 AM
Joined: Jul 2008
Posts: 1,534
bronx n.y
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one bad fish Offline
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bronx n.y
Originally Posted by HardcoreB
Just your average 800HP edelbrock street-headed small block. up
got to love those small blocks. i wish i made that kind of power lmao







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