BEST Bracket Racing Motor for 2019?? | 434 vs 421 SBC

What's the BEST SBC to build for bracket racing in 2019? Let's discuss what's going to be in the car at the drag races this year, plus some other updates from the Gall Racing Headquarters.
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[@nickbeasaw8307]

824

[@GallStarTV]

NICE guess! 🤣

[@trevorjarvis3050]

This is so unreal... I’m bouncing around here on YT looking at 434SBC stuff, (cause I have one in my bedroom closet.. no shit), and I come across your channel. This spring I am planning to build my new shop, and I seen the shop in this video! Brother.... this is the roof line I’m looking for! The wooden arched trusses would provide me exceptional clearance for the lift... and the lighting was fantastic. PLEASE reply back and tell me what brand it is or who built it. I’ve been looking for forever to find this type of construction. I know... this is weird and all, but I just don’t want another tin can shop. Thanks much

[@groomlake51]

4&7 and 4&7/3&2 swap explained. Std firing order is 18436(57)2 note 5&7 fire 90 degrees apart and are right next to each other especially with SBC and it’s Siamese intake ports. 5&7 rob each other’s intake charge and make 20-25% less power than the other 6 cylinders. By swapping 4&7 you get 187365(42) and move the same issue to 4&2 where you get better line of sight to the carb due the their location on the right side cylinder bank. It works well in NA engine. In most roots blown, centrifugal blown or turbo application. The front of the manifold sees substantially higher boost pressure than the rear. Making the double swap ideal 1)872654(3 so the higher boost pressure counter act the losses by 3&1 firing 90 degrees apart. Most screw blowers discharge towards the rear of the manifold making the std 18436572 firing order ideal. To make a long story short it’s nothing new just a copy of big and small block fords that had it right from the beginning.

[@jantzenmelton]

Just now coming across your videos didn’t even know you did them awesome job! thank you for the kind words about us at M&M Race Cars we appreciate it and love having you as a customer with your credentials also a wonderful representative! Keep up the great work and good luck in 2019 just keep doing what your doing and if we can help in anyway let us know

[@GallStarTV]

Jantzen Melton thanks! Yeah I talked with Justin about the channel quite a bit last year at the world finals. We also told him that we needed a replacement front motor plate for the car. A small block one. I’ve tried calling a few different times and emailing and I’m having trouble getting ahold of anyone. Get ahold of me sometime so we can get that coming. 6059331698

[@TheRoguelement]

It's great you and your dad share the same passion..and I'm really very surprised your so vested in the "Old school" so called Small block chevy. what with so many today going to the LS based race program.. I myself still think the Gen 1 Small block is king . it's stout reliability is unquestionable & undeniable ..I happen to know Pavtex build's a 434 inch drag motor that runs on 98 octane pump gas it make's 765 HP at like 7200 RPM and 600 LBS of grunt Now I'm not sure what the cost is but it boasts a Little M block and all the right internals ... I think they are out of Australia .. I'm seeing a few guys even trying to run the SB2 in Top Dragster when the NHRA Top dragsters make the trip up to NY Lebanon valley excellent track ..I'm gonna keep an eye out for you and your dad good luck with the 421 ..

[@GallStarTV]

Hey Michael! Not sure if you’ve followed the channel at all this year, but SPOILER!! We yanked the 421 back out mid season. Just didn’t have the consistency like the old tried and true 434. I think that 421 just needed a way looser converter, it wanted to be 8500 all the time, and we didn’t really have the right internals to let it do that... like it was all over the man, I couldn’t turn on a win light!! We switched back to the 434 and the season really turned around!! So yeah I may have just spoiled the last 3 months worth of videos for you 🤣🤣🤣 haha

[@SlowZ28_C10]

Awesome video as always Tommy! I'm going with 830 hp. Butch knows his shit man, gonna make some power!

[@GallStarTV]

Holy SHIZZZZ.. that might be a bit optimistic but I would be stoked!!

[@jzwing7290]

Sweet video man! Looking forward to seeing the dyno runs!

[@GallStarTV]

You gotta GUESS Zwing!!! 😁

[@djrowe10]

The 421 is an excellent choice. The increase size in the 434 is purely torque gains (25-40 FPs) with the 4 inch stroke. I ran a 406 sbc for 3 years and have an E85 421 I'm putting in later this month for the season 2019. My 421 is only 628 HP which is 101 HP more then the 406 using Brodix heads. My 2800# Chevy Nova should be very low 10's hopefully. If I ran AFR 227 heads I would likely pick up 50+ more HP, but 800+HP is crazy bad ass! You dad is creating you the best naturally aspirated small block ever! Good luck in 2019!

[@GallStarTV]

Hell yeah man! Crossing my fingers that this one can get my car into the 7s 🤞. Sounds like exciting times for both of us this season! Idk if it’s the best EVER but it certainly is healthy!! 😁

[@djrowe10]

@@GallStarTV Well a 454 sbc from dart block and AFR 245cc heads would be best ever for sure. Let me know if you build that in the future! LOL

[@GallStarTV]

@@djrowe10 HA.. I'm thinking big block if I ever do anything different...

[@lte008]

421 is the better combo in a standard deck block. You get plenty of compression height on the piston. Easier to fit the 3.875 stroke in the block as well.

[@johnsheetz6639]

The background makes me wonder if I want to learn about engines or Sip scotch I like it

[@sportman8467]

I'm a 421 guy too gonna build one for gen 3 camaro try do a lottle bracket racing maybe next yr I'd say on hp 750 to 810 depending on that cam and how it matches the heads and imtake btw great video ur dad sounds like me old school always ice to see father and son involved in something the both of you enjoy

[@charlesrutherford4785]

721 HP We happen to run the same engine sizes, a 421 & 434. The 434 has seen just a touch over 700 on the dyno - that one is a well scienced but budget decent engine. The 421 makes less power as normally drop about 2 tenths but we certainly don't have as much head as you have, nor camshaft in it. Have fun - stay safe.

[@GallStarTV]

Charles Rutherford I’ve always been impressed with how well our 434 has performed, so I’m not sure if the 421 can really top it 🤷🏻‍♂️

[@raymondj8768]

I used to bracket race a old S&W 250 in.top alcohol Dragster i had a 470 cu in chevy engine it was such a great car !

[@michaelunderwood3231]

I'm going to guess around 794, but hoping it's more! Love the vids! Best of luck this season!

[@GallStarTV]

Thanks man! All the best to you too!!

[@jjmccloud]

Howards Cams FTW!!!

[@puttingwarheadsonforeheads9872]

If you like engines roughly 430 ci I recommend a shafiroff 440 sbc’s. All are n/a. They have a pump gas motor that makes 820hp with 11:1 and two race gas motor with 15:1 they make 920 and 955hp.

[@Longmotorsport]

thanks for the shout out

[@VehicleVisionary]

I'll guess 843 HP. I had no idea you had been running alcohol with the setup you've had the last few seasons. Can't wait to hear the dyno results!

[@deeaikens9843]

Vehicle Visionary hey that’s my area code a

[@taymangraveyard1686]

My son was gifted a dragster minus the engine. Now we’re researching what motor to buy to run bracket and Super Comp in 2023 Div 4 NHRA.

[@cfmechanic]

Thats a great video. I ran a 427 then I had to bore it went 437 had a skirt go bad and now im looking forward to going 440 sbc. No 15* stuff for me so power is a bit limited. Its a dart shp block brodix heads with Holley sniper efi. My goal is to get it up to 700 hp it is just a street car but i love having a hoopty that will dust mustangs and camaros. Some vids of the car are on my channel

[@GallStarTV]

awesome man!! I'll check them out!

[@overide99]

822hp I can't wait to see the official numbers

[@GallStarTV]

justin dredge that would be freakin sweet!!

[@tjed1071]

Crower cams can make any size can from scratches, 50mm, 55mm, custom any custom sizes.

[@joeyjojojr.shabadoo915]

While this is an old video now, I can't help but feel that those big-ass cam journals were meant to house Roller Bearings..... Regardless, if you guys managed to fill up the holes and just run Babbit Bearings, that will be 1 seriously STIFF (thick) camshaft for some SERIOUS High RPM Stability.... (you can tell I haven't watched any of your new videos, so I have NO idea how things turned out.)

[@jeff_jrr]

801 love the channel!

[@GallStarTV]

Thanks jeff!!!!

[@zAvAvAz]

You could make it a flat plane crank also , don't know what it would do, 4 and 7 swap is better for intake pulse balance and crank for a minor anti deflection, because the frequency shall be changed, also the same for the flat plane crank , may lose a little low end tq, and might have a little gain at top end, or shift it up so, i am going to try it in a sbc or ford Dart tall deck with tall stack pipe , 427 c. i. sbc and slightly larger sbf

[@adamformanack318]

875hp😎💯✌

[@fat_jack_racing_racing]

love the dragster..even love more the 421..i run a afr 23* 421 13.5 comp...love the top end..the top end hp..want to go 15* next refresh..

[@utahcountypicazospage5412]

Torque is always a fight to control.hp makes more controllable at big power slower sixty but higher mile per hours 776 hp

[@poonbandit9924]

I love my 434, she rips hard. 421 in my prior experience does turn out a few more ponies but you do definitely lose torque. My 434 put out a solid number in the dyno, very similar set up, once dialed in she put down 819

[@bronsoncopeland4471]

Wow

[@dennismoore9147]

my brothers 434sbc built by randy daniels na 928 hp with 850 holley

[@josueortiz8628]

Like your channel but I rather have the 434 over the 421

[@TheRoguelement]

If I was into cookie cutter race car's and index racing sure I would but seeing that i'm not I'll stick with cars that have doors ..and NO Throttle stops

[@dragracetv4685]

Cool video as always. 786 my guess.

[@GallStarTV]

Thanks man!!!

[@groomlake51]

Dragster are for crew chiefs to get their confidence back!

[@og6340]

I was always told a small block will not stay together as long as a big block when spraying heavy nitrous like we’re known to do in the southeast part of the country . So much grudge racing here in the Deep South that nitrous is a way of life here and a turbo every blue moon . But now says guys are spraying 3&4 kits on small blocks and 4&5 kits on a bbc

[@GallStarTV]

INsanity man... 🤯

[@Thepaintgod407]

I’m in Florida and this is so true

[@israeldoe8000]

Man they spraying that on turbo and superchargers down here in the southeast...

[@Inthefoxhole]

A well built Smallblock will stay together way better than a slopy built 454.

[@repoman20121]

Your chassis probably cracked during transport it has happened to me the car bounces up and down during transport so you need a air ballast under your chassis when hauling it

[@GallStarTV]

I agree with you, but the other think is how TERRIBLE rough our shut down and return road is. My car was not the only one that has had similar cracks. There have been about a half dozen cars now, and many of them are always carried with an air bladder under them.

[@dennismcdaniels9346]

My son and I have been crewing for my Uncle who runs Comp Eliminator in Div 4 NHRA. My question is, wouldn't a comp motor be labor intensive between rounds in a bracket car? His engine is a 318 CI SM chevy that will turn 10,500 RPM at the finish line. After each round our basic maintenance is to gauge all the valve springs due to the stress. Do you have the time between races running bracket?

[@fat_jack_racing_racing]

4 7 swap eliminates 2 pistons drawing and firing at the same time..same on my 421

[@stevengrissom7142]

Nice vid

[@johnallenhelfrich5726]

So how did y'all end up fixing the piston clearance? Just added a thicker head gasket i assume

[@GallStarTV]

Yes sir. Not ideal but didn’t have much choice.

[@king0cans]

How did the 421 do for you? Mine is a stump puller in my chevelle. Mine is 13.5 to 1 solid roller.

[@johnnieo66]

Too much face time , not enough car time.

[@kellyjones334]

I dont want to be a smartass...but how do you know if its putting out more horsepower...when you didn't dyno the first motor....also you need the torque ratings also.

[@SHONTONGA06]

If the heads and cam are matched well, I’d like to see it hit 860 hp...

[@markusgentry1548]

in the works of building a 434 for my s10 , 15 to 1 compression aluminum heads should make around 900hp

[@chickenfoundation9323]

What fuel would you use for that?

[@markusgentry1548]

idk why my keyboard said 900 i meant 700ish , n i have no clue havent got it put together yet

[@jzwing7290]

Since I was told I have to guess...Haha 807

[@williamteejohnson3795]

868

[@jacknolan8771]

800-835

[@fnafplayer6447]

I wanna get an cheap opel gt to turn into a beast but haven't decided which stroker is better but this definitely helps. Oh I wouldn't be bracket racing. I'd procharge that son of a bitch with a tunnel ram and put it into a opel gt which are light as hell... would absolutely destroy on the dragstrip and have a lot of fun on the street and burnout competitions.

[@Hickory_Ridge_Taxidermy]

What about 540 vs 565 or 598

[@dougbelasco6261]

You shouldn't have any problem to almost 800

[@collinverkler6245]

863

[@scotthultin7769]

565 CI BBC or bigger is the best

[@zokwandamayise1922]

801

[@juliussims669]

Is this Butch last name Shirley or Shurley from GA

[@lucasblow8110]

811

[@caseyhill5261]

Where do you race?

[@kamgree1836]

What’s the music??

[@uponblocks2]

819 HP

[@randallgoss8668]

I’m doing a 434 using a Brodix block Brodix Hedge Ohio crank rotating assembly call cam 750 car this is going to be a street engine for my 56 Ford truck hoping to make a tad over 500 horses what do you guys think

[@artemusifasuenshuffleman8535]

Do you have a big block?, brodix is high dollar big block Chevy stuff last i heard.. but i dont know anywhere close to everything..Seems kinda weak with only 500hp. I'm going to assume with 750cfm feeding 434cid( and you did say Streat truck setup) that the engine isn't turning much rpm. ..hp= torque × rpm/ 5252.. im sure its a nice street cruiser, maybe even a sweet tow setup with plenty of cooling and a little bit of gear. Just seems you can get that same power and pull for a lot less $..A decent cam in a BBF 460 will due it easy and you would be putting a Ford engine in it..Hope im not coming off too negative, im really just curious about this build. .if you don't mind educate me further about it and let me know your progress so far..sounds like a workhorse on the warpath

[@randallgoss8668]

@@artemusifasuenshuffleman8535 I have a buddy that’s a Rodex dealer sold me a machined and ready stroker block for 1300

[@randallgoss8668]

Do you know when I told Clay Smith I wanted somewhere around 500 he laughed at me so it must be much more I’ve never built a gasoline engine with big horsepower I have diesel though so I know what to do to make big ponies add a diesel

[@randallgoss8668]

Yes Mr. Smith told me 750 would be sufficient but I think I’m gonna run a holly sniper

[@MichiganQuadTrailsTales]

who's valve covers you using?

[@GallStarTV]

Rich1028 that’s a good question, because I really like them. We picked them up at a swap meet and the seller didn’t know either. I looked around online and I couldn’t find them 🤷🏻‍♂️.

[@Naoj2024]

Valve covers look like those from the sprint car world…! W.O.O 🏁❤

[@coltonbierle2567]

784

[@lachlanvanderwel2197]

What heads do you have on your 434?

[@GallStarTV]

Brodix 11x

[@lachlanvanderwel2197]

GallStar TV that 434 should make 780 at least coz we've got a 434 23 degree head with 750. Good luck with the 2019 season👍

[@GallStarTV]

LachlanVanderwelVlogs that could very well be, like I said I’m not sure.. it does run good so it could be up there in the 750 780 range 🤷🏻‍♂️

[@jayssw15]

@@lachlanvanderwel2197 what cam did you use

[@donbudd9451]

The music is too loud

[@Lugnutz89]

769. Why not swap the better heads to the bigger engine? Or is the block different?

[@GallStarTV]

The better heads required that we have a little bit shorter stoke in order to get a big enough cam shaft. The heads can flow a lot of air and need a big cam to perform well, so valve clearance would probably have been an issue on a 434 combination.

[@Rich3pz]

So what motor was this 434or421 ??

[@GallStarTV]

421

[@GJ-DT]

Why not just build a conventional long rod 454 BBC? More power, cheaper, more durable, and it puts more weight over rear tires for better traction.

[@garrybellamy8487]

How much gear you run

[@stevewalters6853]

He said they run 4.56 in video.

[@whiteprivilegeracing8921]

815hp

[@GallStarTV]

that would be SICK 💪

[@whiteprivilegeracing8921]

I noticed in one of your videos that you talked about a time calculator on your computer... what was that called?

[@GallStarTV]

Stockafellermotorsports our weather station? The program is by altronics, it captures weather data, can predict your et, and can be used as a log book

[@whiteprivilegeracing8921]

Thanks!

[@danbaumgartner1281]

787 hp ...

[@gerard4803]

just to let you know these are engines motors are electric.

[@dennismoore9147]

dont use diamond pistons anymore

[@leroytapia2596]

780

[@johndienst3194]

871

[@menoaz]

755

[@danstumpf1447]

746

[@AngryDuckSoup]

817

[@matthewvogler1445]

748

[@davidhardy8779]

848

[@lachlanvanderwel2197]

789

[@taylorvarn4774]

725

[@Steviet0000]

768

[@GallStarTV]

I hope you're a little low... but we shall see!!! 😁

[@Steviet0000]

@@GallStarTV it sounds great! Excited to see

[@williamteejohnson3795]

768

[@moodybluemotorsportsDwneKnos]

735

[@alexwiese4826]

792

[@swamie100]

799

[@GallStarTV]

I hope you’re one off at least.

[@swamie100]

were are you dynoing at?

[@GallStarTV]

Fred Hantke Justin Handel in menno

[@swamie100]

Take a few gallons of q 16 if your close that should be worth around 50 hp

[@jessehogg3961]

761