Post 11 second small block combos

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As cast Speedmaster heads, I bought the castings and had my engine builder put them together.
1968 Valiant full interior and glass minus radio. Gonna guess its around 3200 with me in it.
LA 360 stock crank and rods
Icon 741 pistons about 10.6:1
Oregon Cam Grinding 242/248 @ .050" .600" lift solid roller cam
performer RPM, 750 double pumper
Stock type 273 type adjustable rockers 1.5 ratio
Doug's Headers with a 17" header extension and some turn downs, no mufflers or exhaust yet.
904(A999) from a 1982 Cordoba with low gear set rebuilt with good internal parts and revers manual low band apply valve body.
A PTC 9.5" converter stalling at about 4200.
8.8" ford explorer rear end 3.73 Limited slip
Super Stock springs, slant six torsion bars, Mancini bolt on subframe connectors welded in.
26x8.5 Mickey T pro drag radial

First weekend out with the new tranny and converter went 11.77 @ 114.35
 
As cast Speedmaster heads, I bought the castings and had my engine builder put them together.
1968 Valiant full interior and glass minus radio. Gonna guess its around 3200 with me in it.
LA 360 stock crank and rods
Icon 741 pistons about 10.6:1
Oregon Cam Grinding 242/248 @ .050" .600" lift solid roller cam
performer RPM, 750 double pumper
Stock type 273 type adjustable rockers 1.5 ratio
Doug's Headers with a 17" header extension and some turn downs, no mufflers or exhaust yet.
904(A999) from a 1982 Cordoba with low gear set rebuilt with good internal parts and revers manual low band apply valve body.
A PTC 9.5" converter stalling at about 4200.
8.8" ford explorer rear end 3.73 Limited slip
Super Stock springs, slant six torsion bars, Mancini bolt on subframe connectors welded in.
26x8.5 Mickey T pro drag radial

First weekend out with the new tranny and converter went 11.77 @ 114.35

Updated 11.65 @ 114.72 it aint much but its something.
 
my daughters 72 duster 360 .030 over K B hypertek piston 12.5.1 , iron heads pocket ported 560 lift cam , 727 trans , 4500 converter, 4:56 gears 10x 29" tires 3100 lbs, cal tracks , best 11:38 at Lebanon

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the cam is 564/574 solid lifter 262/266 2Degrees advanced on 110 c/l kb dome pistons. not the best choice. but at the time it was a cheaper build. thanks for asking!
Heck! Thanks for posting! I have a set of KB hypers that have a small dome. IIRC, there the 191.
 
that I think is the part # we cut the heads for 12-5-1 . its a fat ring but they work. I wanted to keep her in the high 11.00s 12.00 . range!
fun car and consistant
 
Oh nice! Looks like a Holley Strip Dominator on top. Excellent intake. How big is your carb?
It’s a good lookin car there bud.
 
thanks we swapped the carb out for a quick fuel recently, It has a better response off the line. The older 750 progressive linkage got a little fussy , bigger squirters helped from starting line stumble. it was time to step up. yes the strip dominator was the talest intake at the time.
 
Are you going up to Lebanon Valley for Musclepalooza this weekend?
 
Speedmaster CNC bare....local machine shop did valve job
PAC 1903 springs....
Speedmaster 2.02/ 1.60 valves.
Speedmaster steel retainers and locks

Ran 11.11 last fall into head wind in vegas
 
72 Demon. 408 w/ mildly ported Eddie RPM heads. 10.5 CR. 850DP on an untouched Super Victor intake. MSD 6AL ignition. SFT 251/255@050 cam, approx .560 lift. Kevco 6qt oil pan. Hooker 1.75" Super Comp headers, batt & 12 gal fuel cell in trunk.

CRT 727 w/ a Griner RMVB, 8" ATI Treemaster converter that stalls right at 5000 rpm, and a Cheetah shifter. 4.10 gear on a spool in the 8-3/4 rear. Cage, subframes tied, CalTracs w/ split mono springs. 28x10.5W bias slicks. Weight unknown but likely in the 3300# range (glass 6-pack hood and no heater box or rear seats). Fully street legal (horn, lights, turn signals, etc, etc) and driven some on the street.
Best of 11.251 @ 117.1 at ~2800 DA.
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72 Demon. 408 w/ mildly ported Eddie RPM heads. 10.5 CR. 850DP on an untouched Super Victor intake. MSD 6AL ignition. SFT 251/255@050 cam, approx .560 lift. Kevco 6qt oil pan. Hooker 1.75" Super Comp headers, batt & 12 gal fuel cell in trunk.

CRT 727 w/ a Griner RMVB, 8" ATI Treemaster converter that stalls right at 5000 rpm, and a Cheetah shifter. 4.10 gear on a spool in the 8-3/4 rear. Cage, subframes tied, CalTracs w/ split mono springs. 28x10.5W bias slicks. Weight unknown but likely in the 3300# range (glass 6-pack hood and no heater box or rear seats). Fully street legal (horn, lights, turn signals, etc, etc) and driven some on the street.
Best of 11.251 @ 117.1 at ~2800 DA.
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Gorgeous Demon! I have a 72 Demon with with almost exact same setup. What do you shift at and what rpm do you go through the traps at?
 
Thx! Still trying to find the best shift points but it looks like 6300+ish and through the traps at 6175-6200.

How about you?
 
I can finally post here! I’ve owned my Demon since I was 15 years old (54 now)
Bracket raced it quite a bit back in the 80’s to the early 90’s with a low compression 360 and a .484 purple shaft cam to consistent 12.30’s - 12.40’s
The car became an afterthought when family needs to come first....raising a boy that got a good education and played hockey through Juniors, divorce - re-married, in a stable part of my life with too much time, barely enough money and the energy level is lower and body pains become more prevalent.
I’ve spent the last 5 years doing a full rotisserie restoration and building it the way I’ve wanted to for years!
Technology has come a long way since the days of the Purple Shaft Cams and B&M Super Holeshot Converter!
Car is all steel with US Cartool frame connectors, a fiberglass six pack scoop (hood isn’t painted yet) stock glass/interior.
Front end is pretty much stock w/QA-1 90/10 shocks - front runner tires.
Rear end is 8 3/4, S/S springs moved in to frame rails, 4.30:1 gear, Mopar long shocks for S/S Springs and M/T 275/60-15 Drag radials.
Engine is a .30 over 360 with a Rod Bloomer 4.125 crank/kit to equal 420 cubic inches.
Compression is near 10.5:1 eddy heads gasket matched and some bowl blending/Hughes roller rockers.
Bullet hydraulic roller cam .573 lift around 250 @50 duration. Eddy Super Victor intake with a Holley 750HP that flows 820.
Trans is a well built 904 with 2.76 low gear set, T/A manual valve body and a PTC converter that flash stalls right about 4000 rpm.
MSD 6AL ignition and an aeromotive A2000 fuel pump.
Went to the track Sunday, it was about 65 degrees, slight tail wind, perfect conditions!
Needless to say I was pleasantly surprised!!!
I have many people to thank that have helped….
Demonx2 helped with carb fine tuning - ALOT!!
67Dart and Crackedback helped with electrical gremlins (As they help just about everyone on here!)
I’m sure there’s many more that I've asked questions, gotten advice, and have read a lot to build this car as it sits today.
For that, I am very grateful.
Enough of my boring story....time for the good stuff!
Sunday morning I woke up at 4am….like a kid on Christmas morning….I just grabbed coffee and went to the garage.
Hooked up the car about 8am, got to the track about 9.
Waited til they opened the lanes at 10:30 - warmed up the drivetrain with a few laps around the pits and jumped in line.
I was hoping I didn’t forget how to do all this….did a decent burnout, staged and decided to make an easy pass.
Had a good launch from about 1200 rpm, shifted early and lifted - ran a 12.35! Ok Wow! That was easy.
Next pass…..it’s game on.
Did a good burnout, launched at 1500…..and the pics will tell the rest of the story.
The 4:30 is a bit steep, the engine wasn’t pulling as it should have through the lights and singing at around 6500.
Going to look into a 4:10, maybe 3:91.
Needless to say I am very pleased and so happy to be in this club.
Thanks for listening and definitely thanks for all the help gang!!

Wally.

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I can finally post here! I’ve owned my Demon since I was 15 years old (54 now)
Bracket raced it quite a bit back in the 80’s to the early 90’s with a low compression 360 and a .484 purple shaft cam to consistent 12.30’s - 12.40’s
The car became an afterthought when family needs to come first....raising a boy that got a good education and played hockey through Juniors, divorce - re-married, in a stable part of my life with too much time, barely enough money and the energy level is lower and body pains become more prevalent.
I’ve spent the last 5 years doing a full rotisserie restoration and building it the way I’ve wanted to for years!
Technology has come a long way since the days of the Purple Shaft Cams and B&M Super Holeshot Converter!
Car is all steel with US Cartool frame connectors, a fiberglass six pack scoop (hood isn’t painted yet) stock glass/interior.
Front end is pretty much stock w/QA-1 90/10 shocks - front runner tires.
Rear end is 8 3/4, S/S springs moved in to frame rails, 4.30:1 gear, Mopar long shocks for S/S Springs and M/T 275/60-15 Drag radials.
Engine is a .30 over 360 with a Rod Bloomer 4.125 crank/kit to equal 420 cubic inches.
Compression is near 10.5:1 eddy heads gasket matched and some bowl blending/Hughes roller rockers.
Bullet hydraulic roller cam .573 lift around 250 @50 duration. Eddy Super Victor intake with a Holley 750HP that flows 820.
Trans is a well built 904 with 2.76 low gear set, T/A manual valve body and a PTC converter that flash stalls right about 4000 rpm.
MSD 6AL ignition and an aeromotive A2000 fuel pump.
Went to the track Sunday, it was about 65 degrees, slight tail wind, perfect conditions!
Needless to say I was pleasantly surprised!!!
I have many people to thank that have helped….
Demonx2 helped with carb fine tuning - ALOT!!
67Dart and Crackedback helped with electrical gremlins (As they help just about everyone on here!)
I’m sure there’s many more that I've asked questions, gotten advice, and have read a lot to build this car as it sits today.
For that, I am very grateful.
Enough of my boring story....time for the good stuff!
Sunday morning I woke up at 4am….like a kid on Christmas morning….I just grabbed coffee and went to the garage.
Hooked up the car about 8am, got to the track about 9.
Waited til they opened the lanes at 10:30 - warmed up the drivetrain with a few laps around the pits and jumped in line.
I was hoping I didn’t forget how to do all this….did a decent burnout, staged and decided to make an easy pass.
Had a good launch from about 1200 rpm, shifted early and lifted - ran a 12.35! Ok Wow! That was easy.
Next pass…..it’s game on.
Did a good burnout, launched at 1500…..and the pics will tell the rest of the story.
The 4:30 is a bit steep, the engine wasn’t pulling as it should have through the lights and singing at around 6500.
Going to look into a 4:10, maybe 3:91.
Needless to say I am very pleased and so happy to be in this club.
Thanks for listening and definitely thanks for all the help gang!!

Wally.

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Great job Wally! You built it and now get to enjoy it. You're just passing through the 11 sec club...10 sec club no more than a few outings away!! Can't wait to see that timeslip!!
 
I have a 1974 Plymouth Duster, 360 magnum engine, ported EQ cylinder heads with 2.02 intake valves, mild hydraulic roller cam shaft with Edelbrock rpm airgap intake, Holley HP 750 vs carburetor, MSD ignition system, aluminum radiator, 2 1/2 inch exhaust system with Flowmaster mufflers, headers, and a built 727 trans with a 9.5” 3600 stall built by Dice Performance Converters, B&M SFI flex plate, B&M pro ratchet shifter, line lock, Calvert Caltrac traction Bars and split mono rear leaf springs and Calvert 9 way adjustable rear shocks and Yukon racing axles, a 489 3rd member housing, 8 3/4 sure grip rear end with 3:91 gears in it. 275/60 15 Mickey Thompson drag radials rear tires. I just installed a 100 shot Nitrous Express system. It’s a street/strip/ bracket car.

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I’m in the right lane 7.229 in 1/8 mile is 11.20’s in the 1/4 th.
 
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I have a 1974 Plymouth Duster, 360 magnum engine, ported EQ cylinder heads with 2.02 intake valves, mild hydraulic roller cam shaft with Edelbrock rpm airgap intake, Holley HP 750 vs carburetor, MSD ignition system, aluminum radiator, 2 1/2 inch exhaust system with Flowmaster mufflers, headers, and a built 727 trans with a 9.5” 3600 stall built by Dice Performance Converters, B&M SFI flex plate, B&M pro ratchet shifter, line lock, Calvert Caltrac traction Bars and split mono rear leaf springs and Calvert 9 way adjustable rear shocks and Yukon racing axles, a 489 3rd member housing, 8 3/4 sure grip rear end with 3:91 gears in it. 275/60 15 Mickey Thompson drag radials rear tires. I just installed a 100 shot Nitrous Express system. It’s a street/strip/ bracket car.

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7.229 in 1/8 mile is 11.20’s in the 1/4 th.
Nice combination and run. Impressive 60’ too:thumbsup:
 
I have a 1974 Plymouth Duster, 360 magnum engine, ported EQ cylinder heads with 2.02 intake valves, mild hydraulic roller cam shaft with Edelbrock rpm airgap intake, Holley HP 750 vs carburetor, MSD ignition system, aluminum radiator, 2 1/2 inch exhaust system with Flowmaster mufflers, headers, and a built 727 trans with a 9.5” 3600 stall built by Dice Performance Converters, B&M SFI flex plate, B&M pro ratchet shifter, line lock, Calvert Caltrac traction Bars and split mono rear leaf springs and Calvert 9 way adjustable rear shocks and Yukon racing axles, a 489 3rd member housing, 8 3/4 sure grip rear end with 3:91 gears in it. 275/60 15 Mickey Thompson drag radials rear tires. I just installed a 100 shot Nitrous Express system. It’s a street/strip/ bracket car.

I’m in the right lane 7.229 in 1/8 mile is 11.20’s in the 1/4 th.
Congratulations!!!

You missed two things…. LOL! :poke:
What pistons are in there as well as at what compression ratio?
Tell us everything about the cam rockers and valve train!

Some guys might want to pay you the best compliment possible! They may want to copy the engine and set up!
I like it! Nice job!
 
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