EL5DEMON340
Well-Known Member
71 demon, 3.91, 26" slicks, 11 to 1 stock stroke 360, home ported j heads, torker II intake, 750dp, 4,400 stall. Only time at strip 12.20, 1.66 60', 109 mph, carb was way to rich.
Post your 12 second small block combos
- Thread starter rmchrgr
- Start date
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66durgederp
"pull hard, itll come easy"
.55" lift intake, .56" lift exhaust, 1.5 ratio pro magnum rockers. Duration at .050 is 239/243. Advertised is 291/295
smithchargers
Well-Known Member
1971 Plymouth Duster in stock dress.
I used to run an LA 360 stock low compression short block from a 77 truck. Stock x heads with a good valve job. Comp cams .525 lift solid lifter camshaft. Torker 2 intake with 750 DP. 1 5/8 cheap headers. 2 1/2” exhaust with turn downs at axle. Turbo Action 10” 3800 stall converter. 727 with reverse Manual valve body. 4.30 gears. Weld wheels running M&H Racemaster J60 15’s on the rear. Ran 12.51 @ 107 and some change.
I still have the car but will be running a 360 magnum that duplicates the 380 crate engine.
I used to run an LA 360 stock low compression short block from a 77 truck. Stock x heads with a good valve job. Comp cams .525 lift solid lifter camshaft. Torker 2 intake with 750 DP. 1 5/8 cheap headers. 2 1/2” exhaust with turn downs at axle. Turbo Action 10” 3800 stall converter. 727 with reverse Manual valve body. 4.30 gears. Weld wheels running M&H Racemaster J60 15’s on the rear. Ran 12.51 @ 107 and some change.
I still have the car but will be running a 360 magnum that duplicates the 380 crate engine.
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badbarracuda
Member
69 barracuda fastback 408 stroker with 727 trans and 410 gear best time 12.20@110 mph
Great!
Now tell us the combo!
That’s what this thread is for. Help a MoPar brother out will ya? Tell us what’s inside the mill!
Suspension?
Tires?
Weight?
71 scamp 12.1 112 mph 1.87 60
408 10.2 comp
Stage 2 ported 2.02 r/t heads
Gasket matched air gap
850 qf
Comp xe274 with 1.6 rockers
Tcs 2800 conv 727 trans
Cal tracs with ss leafs
Ce front shocks rancho rear
4.10 275 m/t
408 10.2 comp
Stage 2 ported 2.02 r/t heads
Gasket matched air gap
850 qf
Comp xe274 with 1.6 rockers
Tcs 2800 conv 727 trans
Cal tracs with ss leafs
Ce front shocks rancho rear
4.10 275 m/t
wanna see 11's in spring new trickflows with 1.56 springs and titanium retainers super victor pro systems carb xr286 cam howards mech roller lifters 8 point roll bar and a much bigger converter and 100hp zex system woohoo!
I bet the converter alone could get you in the 11.80s or so.
I agree I am after mid or low 11's on motor car going in 2 weeks for 8 point just in case lol
MAPS
Well-Known Member
QuickDart360
Well-Known Member
Running a magnum 360 cool. What will you do with x heads? Willing to sell?
I called Caltracs and they said no problem actually the cuda guy there said he runs the same. They work very well solved a lot of traction issues
Any idea how much flywheel hp that made? That sounds identical to my 340
1964 Valiant 3300 pounds with driver
360 .70 over with 9.6-1 comp
Ported 302's 62 cc
Performer manifold with Edelbrock 600 carb
Crower 271 HDP cam 1.6 rockers
1.5/8 headers and 2.5 inch exhaust
904 TA 10 inch converter
8 3/4 3.73 gears
M/T 255 street radials
Ran 13.04 @ 102.5 with a 1.84 60ft pulling 4 inches of vacuum at the finish line.....
360 .70 over with 9.6-1 comp
Ported 302's 62 cc
Performer manifold with Edelbrock 600 carb
Crower 271 HDP cam 1.6 rockers
1.5/8 headers and 2.5 inch exhaust
904 TA 10 inch converter
8 3/4 3.73 gears
M/T 255 street radials
Ran 13.04 @ 102.5 with a 1.84 60ft pulling 4 inches of vacuum at the finish line.....
Did you ever break into the 12 second zone, since that is what the thread is about?
Many many times but with more head,intake and carb on the same short block in the same car
12.66 @ 106.7 with a Crower 294FDP ported 360 heads weiand stealth and 800AVS best 60ft 1.80
12.81 @ 105.5 with the 271HDP ported 360 heads weiand stealth and 800AVS best 60ft 1.84
This combo will run 12's easily next time out when it gets all the carb it should.
12.66 @ 106.7 with a Crower 294FDP ported 360 heads weiand stealth and 800AVS best 60ft 1.80
12.81 @ 105.5 with the 271HDP ported 360 heads weiand stealth and 800AVS best 60ft 1.84
This combo will run 12's easily next time out when it gets all the carb it should.
The. That’s when you should post it.
Looking forward to it when it happens.
Looking forward to it when it happens.
MAPS
Well-Known Member
Car went 12.63 @ 107 mph on a 1.853 60ft.
Then why did you not post up that “Qualifying” combo?
Why did you bother to post this “Non qualifying” combo below?
Can you post up the parts used in the combo?
This thread is after all a thread to help out a fellow MoPar brother or sister in search of how to do it instead of fumbling around making costly mistakes and failing.
Your description lacks.
Car went 12.63 @ 107 mph LAST NIGHT.....
It went 13.04 @ 102.5 with a 1.84 60ft pulling 4 inches of vacuum at the finish line.....THE PREVIOUS WEEK.
Its just a stock bottom end 360 with H405cp's
It should be pretty obvious to our fellow MoPar brother's or sister's that a ported 318 head can make power?
I hope this clears up any misunderstandings
It went 13.04 @ 102.5 with a 1.84 60ft pulling 4 inches of vacuum at the finish line.....THE PREVIOUS WEEK.
Its just a stock bottom end 360 with H405cp's
It should be pretty obvious to our fellow MoPar brother's or sister's that a ported 318 head can make power?
I hope this clears up any misunderstandings
jbharris
Well-Known Member
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abdywgn
dismantler
from High Performance Mopar Sept.2001:74 Challenger 360,10" unknown convertor with 3000 stall,,904,3.55 with 235/15 T/A drag radials.
Engine is 30 over flat top hypereutectic pistons,78 596 castings with 1.88/1.60 valves and home porting,Summit hydraulic .441" lift 218/228 dura. at 50. Edelbrock air gap with Holley 750 DP. DUI ignition,Hedman 1-5/8" headers. Best time in that article was 12.64 at 105. Car weighed in at 3600 lbs. In a lighter A-body with more gear and 2.02 valves and more cam...
Engine is 30 over flat top hypereutectic pistons,78 596 castings with 1.88/1.60 valves and home porting,Summit hydraulic .441" lift 218/228 dura. at 50. Edelbrock air gap with Holley 750 DP. DUI ignition,Hedman 1-5/8" headers. Best time in that article was 12.64 at 105. Car weighed in at 3600 lbs. In a lighter A-body with more gear and 2.02 valves and more cam...
dragfish
Well-Known Member
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well finally have an update on my car with new combo 73 Duster
360 40 over pistons in the hole (got motor but with iron heads in a trade)
eddie's rpm heads 63 cc bee hive springs stainless rockers
Hughes solid cam 238/242 duration @50 .558/564 stl3842as-08
rpm intake 750 holley HP
1 5/8 hooker header
3200 stall converter
4.10 gear w/spool nitto 275 drag radial
727 with TCI reverse manual valve body low apply
TNT sat night off trailer 12.37 108 mph 2nd run spun tires bad 12.40 109 stopped TNT due to an oil leak fearing rear main had this problem going to pull motor to replace I run a kevco pan also it has more in it shifting at 5800 i think 12 teens are in it for a low compression motor 9:1 i run 2 1/2" exhaust dumping at axle with bullet race mufflers
360 40 over pistons in the hole (got motor but with iron heads in a trade)
eddie's rpm heads 63 cc bee hive springs stainless rockers
Hughes solid cam 238/242 duration @50 .558/564 stl3842as-08
rpm intake 750 holley HP
1 5/8 hooker header
3200 stall converter
4.10 gear w/spool nitto 275 drag radial
727 with TCI reverse manual valve body low apply
TNT sat night off trailer 12.37 108 mph 2nd run spun tires bad 12.40 109 stopped TNT due to an oil leak fearing rear main had this problem going to pull motor to replace I run a kevco pan also it has more in it shifting at 5800 i think 12 teens are in it for a low compression motor 9:1 i run 2 1/2" exhaust dumping at axle with bullet race mufflers
QuickDart360
Well-Known Member
I recall your old set up where you had 3.23's and the 292/508 mopar cam. How did that combination run? Any street driving? How does it compare to current set up?
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