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1969 RR with a stroker 383 #2472121
03/26/18 02:24 AM
03/26/18 02:24 AM
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Hermiston Oregon
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mopar_leaner Offline OP
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We are getting ready to build a 440 source 438 kit with stealth heads for a 1969 roadrunner with a four speed, 3.55 posi and a factory air grabbe, our questions are, what intake carb combo will work with the factory air grabber set up, what pistons, flat tops or dished should we run and which non comp camshaft would be a good selection with this combination ??


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Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2472224
03/26/18 11:39 AM
03/26/18 11:39 AM
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Scat City, USA
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SleeperBee Offline
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On my 69 Super Bee, we cut the center out of a 440 based air grabber baseplate. I'm running an M1 with an AED 950 on my 400 based stroker. Looks stock with the air cleaner assembly installed. Good luck.

Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2472243
03/26/18 12:13 PM
03/26/18 12:13 PM
Joined: Jan 2003
Posts: 27,444
So Cal
autoxcuda Offline
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Originally Posted By mopar_leaner
We are getting ready to build a 440 source 438 kit with stealth heads for a 1969 roadrunner with a four speed, 3.55 posi and a factory air grabbe, our questions are, what intake carb combo will work with the factory air grabber set up, what pistons, flat tops or dished should we run and which non comp camshaft would be a good selection with this combination ??


What exhaust manifolds/headers

What heads?

What kind of HP/TQ expectations do you have?

Power brakes?

What type of idle quality are you ok with?

Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2472424
03/26/18 06:27 PM
03/26/18 06:27 PM
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U.S.S.A.
JohnRR Offline
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Originally Posted By mopar_leaner
We are getting ready to build a 440 source 438 kit with stealth heads for a 1969 roadrunner with a four speed, 3.55 posi and a factory air grabbe, our questions are, what intake carb combo will work with the factory air grabber set up, what pistons, flat tops or dished should we run and which non comp camshaft would be a good selection with this combination ??


With a 383 air cleaner base you can only use a stock height intake and a stock height carb, no spacers or adapters allowed.

With a 440 air cleaner base you can use an intake that is maybe an 1" taller?


running up my post count some more .
Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2472492
03/26/18 09:08 PM
03/26/18 09:08 PM
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Hermiston Oregon
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mopar_leaner Offline OP
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Again, stealth heads,
Trying to figure out what Cam/ carb and intake combo,
Would like to be around 400-425hp/475-500 TQ
Manual brakes, nice loopy idle.
TTI coated headers with 2-1/2-3” dual exhaust system and 3 chamber flow nasties.


( it takes a Mopar, to beat a Mopar!
email me at moparleaner@gmail.com )
Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2472501
03/26/18 09:22 PM
03/26/18 09:22 PM
Joined: Jul 2004
Posts: 751
Hermiston Oregon
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mopar_leaner Offline OP
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I’m thinking the performer RPM intake and a Lunati voodoo 10230703LK
.494/.513 lift 268/276 duration.maybe a Holley 750 dp.


( it takes a Mopar, to beat a Mopar!
email me at moparleaner@gmail.com )
Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2472670
03/27/18 10:47 AM
03/27/18 10:47 AM
Joined: Nov 2013
Posts: 595
Nashville, Tennessee
Tempest Offline
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Use this w/ the 383 air cleaner.

http://www.manciniracing.com/mara13aircld.html

Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2472676
03/27/18 11:06 AM
03/27/18 11:06 AM
Joined: Jul 2011
Posts: 953
Chicago
PurpleBeeper Offline
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Here's my 2-cents.

1. JohnRR is exactly correct. You need to run a stock height intake manifold. I'm not positive which ones are stock height. The 440-style (GTX) air cleaner gives you about 1" more clearance for a 1" taller intake vs. stock. Airgrabbers are SUPER tight for hood clearance.

2. Tempest idea of a drop base is good except it is not compatible with a 69 airgrabber air cleaner....unless you cut up an airgrabber base and graft it in. (69's are big oval air cleaners, even the 4bbl ones).

3. Your cam sound reasonable...."maybe" one step larger, but for good drivability it sounds about right. You will get 100 opinions on the cam. Some people on here are much more knowledgeable than I am on cams.

4. I would suggest a Holley 750 vacuum secondary (WAY better gas mileage), but for a track car, a double pumper with the 4spd would be good. You might look at some of the performance Holley-style carburetors too if you plan to race.

Last edited by PurpleBeeper; 03/27/18 11:06 AM.

70 Roadrunner convt. street car 440+6, NOS, 4-spd, SS springs '96 Mustang GT convt. street car '04 4.6 SOHC, NOS, auto, lowered "Officer, that button is for short on-ramps"
Re: 1969 RR with a stroker 383 [Re: PurpleBeeper] #2472754
03/27/18 02:01 PM
03/27/18 02:01 PM
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dogdays Offline
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You're basically building a 440.
Any 440 with Stealth heads should be able to make 400-425hp falling out of bed. In other words, a Comp XE268 will probably do it. Don't believe me? Go back on this board and see what Fast68 did with one. But to get the "loopy" idle you need a different cam, either the Hughes smaller Whiplash or the Comp Thumper. Hughes says maximum compression ratio is 10.0:1 so that's what you build the engine to. If the piston requires some sort of a dish, be sure to use a piston with a "D-shaped" or "Inverted dome" dish.

I think you're looking at 450hp or maybe more.

R.

Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2472823
03/27/18 03:57 PM
03/27/18 03:57 PM
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Posts: 1,979
s. e. pa.
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calrobb2000 Offline
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s. e. pa.
hi
get a edelbrock dp4b and a 750 vac sec holley , it will all fit your set up without mods.

find a crane 278 hmv cam .make it 10-1 comp you will smile every time you drive it !

Re: 1969 RR with a stroker 383 [Re: dogdays] #2472830
03/27/18 04:07 PM
03/27/18 04:07 PM
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Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
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Originally Posted By dogdays
You're basically building a 440.
Any 440 with Stealth heads should be able to make 400-425hp falling out of bed. In other words, a Comp XE268 will probably do it. Don't believe me? Go back on this board and see what Fast68 did with one. But to get the "loopy" idle you need a different cam, either the Hughes smaller Whiplash or the Comp Thumper. Hughes says maximum compression ratio is 10.0:1 so that's what you build the engine to. If the piston requires some sort of a dish, be sure to use a piston with a "D-shaped" or "Inverted dome" dish.

I think you're looking at 450hp or maybe more.

R.
iagree up
On your deal a 850 CFM carb, a Holley late model D.P. or similar size from another good comapny, would be my choice due to the C.I. and longer stroke thumbs
Every RB motor I have added CFM to( a lot of them!) went quicker and faster at the track, which means they all made more power with more air and fuel consumption work
The drivers right foot determines how much air and fuel the motor consumes when being operated, the carb. size determines how much it will get at WOT only work shruggy
On the camshaft I like and use Comp Cams, take a look at the older Magnum 292H grind for your deal or maybe one of the later bigger XE or XE-HL grinds scope thumbs
No matter what you choose and use make sure to degree it in to the proper position wrench thumbs

Last edited by Cab_Burge; 03/27/18 11:43 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2473030
03/27/18 11:03 PM
03/27/18 11:03 PM
Joined: Feb 2003
Posts: 2,138
tucson az
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frank Offline
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On my 69 GTX with air grabber and stroked RB, I have a Holley Street Dominator intake with Proform 850 DP carb. I had to modify the air cleaner base to make everything work but it fits with the stock hood.

Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2473084
03/28/18 12:22 AM
03/28/18 12:22 AM
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Posts: 751
Hermiston Oregon
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mopar_leaner Offline OP
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Personally I have never like comp Cams as I see more of the go flat hands down than all others combined. I have worked in two automotive machine shops in the past .
You guys have some really good ideas !!!


( it takes a Mopar, to beat a Mopar!
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Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2473120
03/28/18 02:03 AM
03/28/18 02:03 AM
Joined: Mar 2008
Posts: 883
Affton MO
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qwkmopardan Offline
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Affton MO
Racer brown st-22 solid flat tappet or an ssh-24 hyd. and a 770 holley street avenger carb.

Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2473164
03/28/18 03:21 AM
03/28/18 03:21 AM
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Bend,OR USA
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Originally Posted By mopar_leaner
Personally I have never like comp Cams as I see more of the go flat hands down than all others combined.

Comp Cams has been the major player in the after market cam business for a lot of years, when you sell the most of any products you will have at least as many failures as every one else but who remembers the failures of the other companies that couldn't keep up with the leader in volume shruggy work
A lot of cam failures are the engine assemblers fault regardless of the brand due to not getting the motor started right away and breaking in the cam and lifters properly shruggy


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2473199
03/28/18 09:46 AM
03/28/18 09:46 AM
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Phila Pa
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scatpacktom Offline
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Phila Pa
I'm curious, Why not use a 400 block?

Last edited by scatpacktom; 03/28/18 09:47 AM.
Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2473213
03/28/18 10:14 AM
03/28/18 10:14 AM
Joined: Nov 2013
Posts: 595
Nashville, Tennessee
Tempest Offline
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Missed the air grabber part.

Re: 1969 RR with a stroker 383 [Re: scatpacktom] #2473856
03/29/18 03:36 PM
03/29/18 03:36 PM
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Posts: 751
Hermiston Oregon
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mopar_leaner Offline OP
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Hermiston Oregon
I think the owner wants the stealth look of a stock engine. Plus he has 4-383s and no 400s


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Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2474353
03/30/18 01:27 PM
03/30/18 01:27 PM
Joined: Feb 2003
Posts: 2,810
Sobieski Wi
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bee1971 Offline
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Sobieski Wi
Just got mine on the street for its initial test after a year

Numbers Matching 383 Magnum / 440 Source 432 Stroker

Kit came with Icon Pistons - 10.3 Comp

Had my engine builder balance the crank

440 Source Billet steel main caps - Line bored

Edelbrock E Street Heads 75cc

Factory HP Exhaust Manifolds

Howards Cams Billet 9 way adjustable Timing gears/Chain

Comp Cams XE 275HL - After degree installed straight up or dot to dot

Brand new Weiand Dual Plane Intake

Factory 1971 440 HP Carter AVS 750cfm that I worked with Edelbrock Jets/Metering Rods / Springs and Covers

Numbers Auto Trans Rebuilt running a new Turbo Action Street Valve Body

Factory 3:91 Sure Grip

Right now running about 18 degrees initial with 18 degrees mechanical 36 Total

Starts and idle is awesome even cold with no choke

Only thing at times with that cam and lifters sounds like a overpowered sewing machine when cold , quites up better when hot

Valvoline VR1 Racing Oil Silver Bottle 10w30

Hot idle 25psi Hot cruise 75 psi oil pressure

Off idle 700 Rpms I can destroy/burn the 275/15" Cooper Tires from Green Bay to Chicago if I wanted

Now I have a real dilemma , TRACTION at stop lights

I wanted TORQUE off idle to say around 5600 5800 rpms for street use only

Will drive it for awhile before deciding on possibly a new carb and maybe maybe headers

Weather sucks in WI , snow tonight


Last edited by bee1971; 03/30/18 01:35 PM.

1971 Dodge Charger Superbee
2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded
Siberian Huskies
Re: 1969 RR with a stroker 383 [Re: mopar_leaner] #2474360
03/30/18 01:39 PM
03/30/18 01:39 PM
Joined: Feb 2003
Posts: 2,810
Sobieski Wi
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bee1971 Offline
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Sobieski Wi
One more thing with that Weiand dual plane #8008

I get to run my factory dual snorkel that I had powdercoated wrinkle finish with a deeper air filter about an inch higher under the factory bulge hood without touching , what I wanted a factory look


1971 Dodge Charger Superbee
2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded
Siberian Huskies
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