Small block Strokers

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408stroker

408stroker
Joined
Feb 2, 2008
Messages
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Location
Uxbridge Massachusettes
Just wanted to know how fast you guys r running. I got a 408 runnin 10.94 @123. I know I have more in it than that. That was off the trailer this combo only has 12 passes on it. just wanted to see where i stand any one runnin a 408 please share your info. eagle rods, crank, ross 99789 pistons edelbrock heads, mopar perf 590 mech cam 1.5 crane rockers mp single plane intake 890cfm holly. 904trans and 430 gears on a 28 10.5 15 drag slick.
 
Man, that's screamin!

I have an original 73 340 Duster, that now has a 9.6:1 Edel headed 408, 236/242 .544/.541 Hyd Roller, Holley 750 DP with a proform center on a M1, with Hooker Comps & 3" exhaust. Est 450 crank horsepower.
It's backed by a 727 with 3000 stall, and 3.73 in a Dana, strip is 28x10.5 slicks.
Car has a full interior, Sub Box in Back, and 2 amps. Weighs around 3400 with me in it.

Best 1/4 time is 12.25 @ 109.6 mph, with 1.673 60' time.
 
Mines a smaller stroke 372(340)The best i,ve ran was 12.84 at 108.2mph.The ccar is a 4 speed with c.force clutch,lakewood bell.and 4.10 8 3/4.Has slide-a-link also.There,s room for improvement,can tell by mph.hope to get into lower 12,s this spring.Car has full interior and 26x10 slicks.Your 408 is gettin the job done,that,s for sure.:cheers:

OCT 08 006.jpg
 
Heres my 416 combo:'70 340 block .030,diamond 10.9 to 1 pistons,mopar cast crank,eagle rods,Lunati .533/.552 hyd. cam,edelbrock heads slightly ported,air gap intake,quick fuel 850 carb,full msd ignition..this combination has run a best of 11.02 @ 120,and runs consistent 11.0's,through a full exhaust system,full interior,added weight of a 6-point bar,and running 3.91's..it would have gone in the 10.90's with the 4.30's,but did'nt get a chance to find out..will be changing to a better crank and rods!!!
 
the cars weighs 2850 with me in it has cal trax in the rear the car need a diff converter and somthing than the cheep headers from jegs. for the winter i am going to a 4500 stall converter and a set of tti headers
 
I was going to ask you what it weighs. I'm all about lite-weight for my '74 'Sport "track car w/ tags" project. You know, the old "100# = 1 tenth" addage.
What year/body is yours? What have you done to get it that light? The freakin bumpers on mine were 62# and 82#, respectively for front and rear. That's brackets and everything. Yikes! I plan on using 'glass w/ lightened brackets.
Nice car. What are your e.t. goals?
 
all i have done is glass bumpers,hood decklid and rear valance the car is a 72 the car has only one seat in it i would like to be in the low 10s high 9s on a real good day
 
Friend 1- 408, Shady Dell stage 2 RPMs, cast crank, stock block, custom medium size solid roller ([email protected]), MP M1 single plane, 950 BIGs Holley, full exhaust, 3500lbsw/driver street car: In '72ish Duster, 727, 4.10s, 28x10 slicks, 100hp NOS shot 10.48, of the bottle 11.20s in 100+ Vegas heat.

Friend 2 - 426 (340+060/4"), my "stage 2" ported "587s", Crane H302-2 hydraulic cam, RPM AG, Street Avenger 870VS, with 727, 3.23s in 3700lbs Challenger 12.0s at 109+ with wheel spin (1.88 60'...lol)

Friend 3 - 408, cleaned up RPMs, hydraulic cam apprx [email protected], RPM AG intake, Holley 850DP, with 727, 3.91s in a factory stock loaded Mirada (4200lbs + w/330lbs driver), 12.20s at 110.

Friend 4 - 416, Shady Dell CNC RPMs, medium sized ([email protected]) solid roller, with 6bbl intake and carbs, not run at track, but makes 450hp to the tires on the chassis dyno. 480 with an AG and 950 Holley on it on the same day.

Sounds like you've got some left to find, but you're doing fine.
These are all pump gas primarily street cars.
 
408, 268@050 .688 intake lift, .672 exhaust lift, eagle crank,rod's, probe flat top's, Shadydell worked LG port Commando's, Indy intake, 1050 dominator, 12.8-1 compression,904 std first gear,4.56 in a dana, 29.5X11.5.Phoenix in a 2938# 76 Dart 3150# with me in it, best so far 9.98@ 131 mph, run's consistantly 10.05 to 10.10
 
This was a 11.38 pass 117mph. 415 stroker, 10.2 comp, .534 intake .555 exhaust. duaration @ .050 250 intake 262 exhaust. 904 pushbutton trans with manual reverse valve body. 8" coan 4000 stall convertor. 4:11 gears on a 12.5 by 28" tire. Jysnflem

Test and Tune.jpg
 
jysnflem said:
This was a 11.38 pass 117mph. 415 stroker, 10.2 comp, .534 intake .555 exhaust. duaration @ .050 250 intake 262 exhaust. 904 pushbutton trans with manual reverse valve body. 8" coan 4000 stall convertor. 4:11 gears on a 12.5 by 28" tire. Jysnflem
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Youse guys are running a lot more cam than I am! I'm 236/242 @0.050" comp xtreme hydraulic roller, but it's mostly a street car. I may have compromised too much to get my 10" vacuum at idle in gear at 800 rpm. Is yours a street car? What does it idle at, vacuum, etc? What is you 60' time?
 
jimmyray said:
Youse guys are running a lot more cam than I am! I'm 236/242 @0.050" comp xtreme hydraulic roller, but it's mostly a street car. I may have compromised too much to get my 10" vacuum at idle in gear at 800 rpm. Is yours a street car? What does it idle at, vacuum, etc? What is you 60' time?
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My 60' time was 1.55 on that pass. This Dart GT is a street car with only a mini tub and frame rails tied with XHD leaf springs. The car has the full interior and weighs 3260 with driver. This car has only 6" or 7" of vacuum and I have it idling in gear @950RPM. Intake is a Victor 340 with a 750 HP carb. My Dart usually runs in the 11.50 area but has slipped in to the 11.40's this year more then once and is running mufflers. Jysnflem
 
jysnflem said:
My 60' time was 1.55 on that pass. This Dart GT is a street car with only a mini tub and frame rails tied with XHD leaf springs. The car has the full interior and weighs 3260 with driver. This car has only 6" or 7" of vacuum and I have it idling in gear @950RPM. Intake is a Victor 340 with a 750 HP carb. My Dart usually runs in the 11.50 area but has slipped in to the 11.40's this year more then once and is running mufflers. Jysnflem
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I would think the difference between our 60' times is the convertor and gear, and your superior lsunching skills. My best thusfar is 1.67, and I've read that 1/10 on the 60' is good for 2/10's on the quarter. So, if I figure right, if I geared and stalled like yours, I may get to 12.0 from 12.25. I suppose the rest is engine differences - cam, compression, heads, and whatever else different you did in block prep. Suggestions?
 
12.00s with a thermoquad. We run at 3800 ft. I see 11.70s this summer
 
410 valiant said:
12.00s with a thermoquad. We run at 3800 ft. I see 11.70s this summer
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Tell us more - details, carb details (who built it for you), mpg? I was skeptical of the TQ, and have not been too successful messing with them.
 
10.48 @ 125. 1.41 60'. 4.100 bore 3.79 stroke = 400ci. R3 block, J&E pistons, Eagle rods, Mopar (Scat) Crank, Crane .600 324 degree flat tappet mech cam, RPM heads w/2.055 Manley intake valves, tit retainers, Manton pushrods, Crane gold 1.5 rockers. 904 trans all roller, stock 1st gear, 4800 Continental converter (flashes to 5600), 4.56 gears 8 3/4, Moser axles. Low first gear and back brace coming this winter. Car weighs 3050 wet. Not fully tubed, has 29.5x11x15. Ladderbar/coil over. Shifts at 6500 and goes through the lights at 7150-7200. Very consistant.:-D
 
My best pass so far with my 416 in a 3390 pound 66 Dart is 11.14 at 120 with a 1.56 60ft. Car has a 833 4spd with a 3.09 first gear and caltracks bar and mono leaf springs 26x8 mt slicks. Motor has 10.4 comp. Indybrock heads, eddy rpm airgap, 750 holley, MP 590 solid stick, 1 7/8 headers and full 3 inch exhaust to back bumper. I feel the car has more in it but broken parts have taken there tole, but banging through the 4 gears is just to much fun! I will give up the ET for the thrill any day!
 
stroked 340 said:
Heres my 416 combo:'70 340 block .030,diamond 10.9 to 1 pistons,mopar cast crank,eagle rods,Lunati .533/.552 hyd. cam,edelbrock heads slightly ported,air gap intake,quick fuel 850 carb,full msd ignition..this combination has run a best of 11.02 @ 120,and runs consistent 11.0's,through a full exhaust system,full interior,added weight of a 6-point bar,and running 3.91's..it would have gone in the 10.90's with the 4.30's,but did'nt get a chance to find out..will be changing to a better crank and rods!!!
Click to expand...
A nice medium size solid or roller cam and a good single plain intake would wake your combo up.
 
outlawracer said:
A nice medium size solid or roller cam and a good single plain intake would wake your combo up.
Click to expand...

Same thing we've been thinking,but its going to be next season before i can redo the stroker..in the mean time we're going to be putting a good size solid in my 360 which has gone a best 11.79 with a .513/.533 hyd. shooting for low 11's...
 
414, 12:1 CR, Ross pistons, Eagle H beams, MP 4" forged crank, this in a 72 360 blk with a half fill and Pro Gram billet 4 bolt mains. Cam that was in it the last 6 years is a Comp custom solid flat tappet-263* @ .050 and 607" lift with a CL of 108. Heads are 308 factory iron heads with ALOT of porting, 2.02 & 1.62 valves, Crane gold rockers and Smith Bros 5/16" pushrods. Moroso 7 qt pan with scraper, screen and baffles. Mopar M1 single plane intake with a 750 DP most of the time. Hedman 1 7/8" headers with 3.5" collectors. 727 tranny with Cheetah V body, 8" 5000 stall verter. 4.10 gears with 30 x 13.50 x 15 ET Streets, and a complete Cal Trac set up. Car is 3290 with driver. With the 750 its gone a best of 10.55 at 126 in good air. Best ET ever, with a 925 Carb Shop carb is 10.45 at 127 on the chip. Car is Street legal and tagged and in street trim (Flowmaster 3" single chamber muffs) its about .06 slower.

bbd gal 6.jpg
 
Only ran on 1/4 mile once, 10.9 ET on pump gas, and 9" tires... driven there. Mostly run 1/8th mile, 7.0's with launch limiter set at 2000rpm for traction LOL. All Steel Car with a little extra weight from stock.

419", Eldy heads, dual plane intake, hydraulic roller, 850 holley (got a 950cfm, haven't tried it yet). Cal-Tracs, launch limiter, 833 4- Speed.

Also just raced 4000+ Miles Flawlessly in a rally 8)

DSC_014610-0.jpg
 
Congrats, all. Everyone is making good power!
I've run 10.3's with lazy 60ft's. Hopefully that will change with the new Ultimate Converter.........
 
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