Race winning low buck 383 SBC build.
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- Опубліковано 28 вер 2024
- In this, part 2 of episode 22, DV goes into details on how to make $20,000 worth of HP & Torque for about $5,500. This is the 383 that powered our very much low-buck racer that was just a smidgen slower than the series champs record setting $47,000 car! Here's a point that you should not overlook - most of the moves DV talks about are relevant to almost any V8 build!
One trick I did was on a spacer on a 400sbc. The dual plane intake was an old Eldebrock CP 3x (number may be incorrect). It worked very well. I went to thinking a larger intake plenum would help, so she received a one inch spacer. The bottom end didn't change much but the top end was WOW. I then cut notches on front and back of the spacer and fitted 1/4 inch aluminum strap and epoxyed it in for a devider to make it a true dual plane with a larger plenum. Drivability was very crisp. Once on a remote road I gave her a solid launch. I could very much feel her become much more of a devil than she ever was! Stock style and stall conver launch (1500 rpm) to 5500. What a monster!
From Oklahoma
Mikel
The cam is Crane HMV272-2, flat tappet hydraulic. Smooth stock idle and 7mpg better than stock. She pulls paste the rated 5500rpm rating. Of course, the valve train was matched to the cam specs.
Mikel
C3BX Edelbrock is a badass intake! The runners are massive! So big in fact that an HEI will not fit unless you grind a bunch of material off of it.
Thanks for the write and info.
Cheers!
@@merccrewlcab2385 Correct. HEI will not fit this intake,I I ran the point ignition. Also blocked the oil fill bung with a freeze plug since I used valve cover oil fill.
@@mikebrooka9395 Cool!
My son and I have a few of them!
@@merccrewlcab2385 cool beans!! Rare to find only one much less a few. Congratulations!
Thank you, David, a lot of great knowledge shared! I was surprised to see the specs on the comp cam used at the end was on a 110 LSA. Especially after all of the talk using a 106 or 107 LSA. Also, I’m a little surprised to see that the majority of questions in the comments have not been addressed. Thanks again for sharing your wealth of knowledge.
106-7 lsa cams unless very small are a pain to live with on the street.
LIke 108 for hot rod stuff and 112 for drivers
Is that due to overlap?@@gordocarbo
@@paulmryglod4802 Yes
Loved the detailed parts layout and description. Makes it easy to replicate
*Sorry for ur loss! Thanks for sharing your life time of knowledge*
All solid info. I'm positive I'm going to the cam video next. Thank you for sharing
Thank you David for all your years of knowledge you are sharing with us. I would love to see more 383 tips being that more people are going this route instead of building 350s.
Appreciate all that knowledge you have shared.
this is your best video mad up to date, LOVE THE CHANGE, WOULD LOVE TO HAVE YOU BUILD US A 383 FOR THE ISLANDS,
Thanks David
I will be building a 383 engine
To your specifications.
You seem to have a wealth of knowledge to share. Very informative.
I wish i had the change to get a job in this kind of shop after my mechanic school 🏫 but at 65 it’s to late 😊
Hi David,
Well I didnt know you had worked for Weber.
I did visit Jef How in West Kingsdown opposite Brands Hatch many times as he was Mr. Weber in decades gone by as his wife was the font of All weber jetting knowledge.
I wonder if you also knew Mike the pipe? In Essex master of building bannana bunch headers.
Of course there was David Newman camshafts in our area (Farnborough Kent) too. I guess its his son or grandson running the business now?
You keep making videos & I will keep clicking the likes.
Thank you.
high david thanks for another great one can you do a video on the 396 3 7/8 stroke build?
Awesome again.
Great vid David, I was interested to know in the exhaust part, you specify header pipe size but not design. At that power level, is it preferable to have "tri-Y" design or long-tube? Does either design just dictate where the peak torque is generated, or is that exclusive to primary length? I remember a comment you made about equal length headers not always being the best for power production, is that dependant on firing order?
I want to build a 421 for a street car that I can drive. With the maximum HP I can use.What do I have to change compared to the 383? Thanks again for your and Andy's great videos.
I have built all kinds of motors, I really enjoy the uncommon. I ran 455 Buicks for years, along with Pontiac and Cadillac. Of course 50+ LS motors and can't even count the small blocks. I remember when running a low compression 455 I had a can cut on a 107 with quite a bit higher exhaust duration to make up for the crap exhaust port and it made far more power than anyone expected. Getting the cam and Carb right can make any combo
Uncommon? This has been around for decades
I got a few older big blocks laying around 396 402 454 I got a couple c30 two wheel drive dually with 400 sbc I liked your 383 video....l would like to see what you like doing to older bbc any new info for 2023 on bbc thank u
Have you done any testing with E85? I’m considering a high compression street engine.
Building a gen 2 lt1 396 would love to see how you'd build a 600+ hp lt1
I like GOODSON😀
Hello master wath dou you tink abaut Turbo 292 heads Csb wath can thes flow ported????
I just want to see full specs. I mean we get a lot of details but theres always a couple things missing. You can buy the book but the combos in it arent this stout.
David did good on this engine assuming that number is true.
LCA on a 421 with big intake valves I a street street car? Thanks for the videos
What was the block used ?
350 block 400 crank
Is there any way to tell the 350 in a car is actually a 383 stroker as the seller may say to a potential buyer? Anything specific to look for?
Not really
👍
Can you do a low buck 289 ford that sound be awesome
Consider building a chevy 496 or cad 472,500 and you'll be starting with a long strong engine with mostly stock or cheap parts. The 383 won't do that stroke or bore.
? Why isnt fuel injection used more often on these builds.
010 block is high nickel
No point in pushing hydrolic lifters past 6200. They bleed down unless you have a rev kit installed. Hydrolic lifters in my experience have always been junk. I dont usually use them.
Hmm, my 347 dart in my foxbody with a ysi makes 1000hp at tires with a hydro roller shifting at 7k
Runs 8.80 at 158 159
You don't get 600 plus HP with a normally aspirated engine with out big compression ,so its not 92 octane pump gas certainly not a small block I don't care who you are !
Ugh.... No one gonna comment on how he keeps confusing "LOBE SEPERATION ANGLE" with 'LOBE CENTERLINE ANGLE"?!?
Ughhhhhh...... Hello?!?
Thanks,DV. v/r wh
189 views 58 likes come on you bums stop making believe you knew this stuff and hit the like button anyway if you did know hit it anyway
Smokey Yunick, Bill Jenkins, & David Vizard are my Heroes! My home built engines have stayed together & performed well over the years thanks to your great information. I can’t thank you enough! I’m looking for tips on getting more power out of a 350 Chevy 350 roller cam track 1 headed vintage road race engine with 48 IDA carbs on MacKay manifold. Should I bore them out to 51mm? I think I need more carb flow it’s weak above 7000
It’s a GM, of course it’s weak.
@@DoyleShadduckhahaha bro you are hilarious! those damn GM idiots right?
my wife left me
A friend of built a Yunick Stroker, had so much torque, sent the flex fan thru the hood, fender and radiator, during a good rev up. Twisted the water pump impeller right off. If he would have been under the hood giving her the ole Ugga Dugga, off with his head for sure.
@@raisinracinbrealynn1478the fasteners failed. They were probably torqued too high.
Beastly build. Easily outperforming anyone elses 383 builds. Back in the day David used to have a paid service, where you could ask his advice on a build, and he would detail the build for you. He gave me a Chevy SB 355 cid build that made 525 hp on 93 pump gas. He specified everything I needed; Crank, AFR heads, cam specs, etc. The component build was reasonably priced for the power output. This was back in the late 1990s and early 2000s. He never disappoints based on my experience. I also built a 400hp vortec heads Chevy SB. I literally built the engine using one of his published books, which I still have. When I was done, it started right up and shortly there after lit the tires down the street.
Would you happen to have the title of the book? I’m building a vortex right now and would like guidance to known power
@@SubePelayo928Type in "447 hp Vortec" into google. You're looking for an article from motortrend. Also type, "David Vizard SBC book" into google, you'll see a few of his books come up!
Can you share the build specs. Sounds like a perfect street motor.
vortec*@@SubePelayo928
@@SubePelayo928 Search on "447 HP Vortec", it'll come up on a motor trend site.
So sorry about your loss. You are the most informative. TRUE Info on the web. Keep up the good work.
Dudes a G. Love that following his rules. My 4000 dollar 350 build made 45hp more and 25lbs more with a broader curve than an 8000k professional build motor.
King David’s (Beastly 383)
O’ I saw the video where your old buddy would knurl pistons.
The Knurled pistons does the same thing as the pistons in your Beastly 383.
Controls the oil against the piston skirt and cylinder wall:)
Plus gives a path for the break in grit:)
Does anybody have a parts list for this build? Or could we get one posted?
Absolutely great video David, I watch all your videos and have all your books. Please keep up all the great work!
Sonic turbos are my go to mufflers since I seen the article a long time ago. Even made a noticeable difference on my 94 Cadillac STS
Great video David. I have a 406 block I’m planning to build in about 12 months that will go in a 1980 Corvette. I haven’t built a performance engine since I was a kid and those were 265’s and 283’s so obviously it’s been awhile!
I still build 283's for fun!
Thank you for this excellent content. It is very much appreciated.
Awesome stuff ,,thank you,,I'm building a 3.75 stroke Pontiac, I feel all these principles will work,,thanks again ,
Motor T USMC U RA!!
I've been using his cam specs for my 383sbc builds. They're spot on! Its no doubt you have to get that right. The power curve hits similar to my 2 stroke shifter karts . The only complaint I have is no street tire will survive.
It seems the cam specs would be very unfriendly to power brakes. Is that your experience?
@@jjpoissant It's been awhile since I watched this video, but with 12.1 compression and a 300+ duration cam, it will probably be close to the limit of reasonable power brake operation. Then again 12.1 compression and 300+ duration is not a pump gas street build. I run a 284 / 288 duration and 107 LSA on my 383sbc, with 10.4 compression. That gives me 13 in Hg of vacuum, which is just good enough to run power brakes on my C4 Corvette. I use a program from DV, which allows me to spec cams, it also gives me a ball park figure on idle vacuum. If you want me to run some numbers on ideal cam spec for your setup. Just let me know, I should be able to give an idea of the vacuum at idle.
@@blitzcechannel7941with that 284/288, what kind of power are you making? Which heads did you go with? looking at different combos for a possible build.
@@jjpoissant I did not have my Dyno at the time of this build, so best guess would be just under 500hp. It's built on a 2 bolt TPI block for road racing, so keeping under 500hp was a goal for survivability. I used my own 200cc version of heads with light porting work. The heads are similar to Dart SHP heads. It's a TPI fuel injection mini-ram intake, so there's a bit of limitations from that. A good carburetor setup would probably breath a bit more freely. I would say AFR 195 CNC heads are the best bang for the buck in a Streep Strip 383 combo.
David - At what hp level or spring rate/lift would you recommend to stop using stamped rockers?
200,0000 HP and 99,000 RPMS
@@trxtech3010 Stupidity lasts eternal on the internet...
@@rickss69 Yes it does.
Back in the 1990's when i was just starting to build cars I did tons of research, had all they dyno software as soon as it came out. I started building my own stuff in the garage and ran "huge" cams according to the old time guys. I ported my own stuff, did my own valve work (at a friend's shop) and built a 355 on a budget that put an 80 camaro in the 10's on very little nitrous and weel into the 11's on motor. I like high lift and low lsa, made great power and sounded excellent. When i had the motor ripped down to refresh i switched from solid to roller and let my engine shop frend and howards pick the cam. It sucked. I would up having them custom cut me a cam then it was even faster.
Great information. Building another currently with a Holley EFI…getting out of touch with tuning. All street, my track days are behind me but the wrenching never left my hands.
If I were wanting you or your people to recommend a cam for my 400 sbc, what is the price and what is the method, Mr. Vizard?
Thanks David. Would love to get your input on building a MAXIMUM TORQUE SBC 400 in a 1997 K1500 w/5 speed and 3.73 axle for towing. Maximum compression on 93 octane pump gas w roller cam and stock vortec style heads. The only upgrade that has been made is the replacement of the factory fuel injectors. The reason for the maximum compression is that a CNG conversion kit will be installed and I want to maintain HEAT to compensate for the power loss from the conversion. Truck currently has 384,000 miles and a daily driver. I bought it used at 99,000. Engine does not smoke and never even had a valve job! Your thoughts!! RJ
Think this engine was in .....horse power on a budget..or another one..thank you sir for all your knowledge sharing information..glad you made a full recovery
I am just starting to watch your Videos. Lots of good info. You keep saying use vacuum secondaries, but I have a manual 5 speed transmission. I have always used the Holley Double pumper. 600 CMF works better than anything larger with my Holley Street Dominator single plane intake.
I want to be set up to run E-85.. Thus I need flex fuel and fuel injection. There are aftermarket flex fuel kits for LS engines but not sure if Holley, Edelbrock ect have addressed this.
My first Flex Fuel conversation will be on a 1203 CC Buel air cooled engine. I will gain so much more with E-85 on an air cooled engine. Stoke the 74 CI Buell makes 103 HP a stock 1203 Harley Davidson Evolution engine makes maybe 74 HP some years it only made 58 HP. The Buell is fuel injected with 10.5-1 Compression calling for 91 octane gas. I can get a 93 Octane tune for the ECU.
As far as guys who want to run 87 Octane E-10 Try adding a Water / Methanol injection system. They used to be called Snow Performance.
Hello David,
Love watching all your very informative videos especially about the 383 Chevy specs.
This is my engine combo and I would love any feedback from you. I have not had it dynoed.
First the block. The car is a 1969 NOVASS 350. When I’m got the car the engine had already been set up as a 383. I took the engine apart down to the short block for inspection and to identify the bottom end. The block is original to the car and has not been decked. Still has broach marks.
The block was bored .040 over.
It has a scat cast steel crank 3.750 stroke.
Eagle I beam rods with cap screws. 5.7”
Pistons are JE flat tops. I assume floating pins but not positive.
I left that all as is. Checked a couple bearings all looks great.
Heads I chose are AFR with 195CC runner 64CC chambers. 2.080 intake valve. Full race ported competition eliminator version.
Camshaft is a Herbert solid roller. Lifters are Morrel.
I chose one with a 106 CL and a 108 LSA. The lift is .610in .620ex.
Duration @ .050 is 250in 250 ex.
Im running a stock uncut deck with a .016 SS shim head gasket. I calculated a static compression ratio of 11.3:1 with this combo. I have 215lbs. Cylinder pressure.
Induction consists of a hurricane open plenum intake and a Holley HP 750 carb. I think the carb is too small and needs a 800. You mentioned about vacuum secondary be the best. So i figured a 780CFM might work really well well.
Also running about 36 degrees of timing.
Anyhow that’s my combo. How far off am I to get 500 HP?
Thank you for such an awesome place to get proven info that is helpful. This is the only place that I feel like I can trust to give correct facts about engine building. Thank you David for all your help, have you done any work with the 283 sbc.
I didn't realize that Holley Carbs have been upgraded much since I purchased my 1760 600 CFM in about 1980. Seems I read that Edelbrock is building vastly improved Holley clones. I was not paying a lot of attention as I was leaning to running a fuel injected LS engine.
Perfect format. Very informative.
Hmm a 107LSA.. very interesting.. I think I’ll try this one.. if I’ve learned somthing know from all you do.. you know cams in and out.. my 383 should scream with these 195 eliminator AFR heads and 10.5:1 comp
Were the cam specs listed what was used in this engine? i see the 107 lobe sep. My go to i use for a 383 or 406 solid roller is a comp 12-855-9 for a drag limited street use. 253-257 @50 645 645 on a 106 lobe sep. This works good with a afr 195 or 210. for a book cam this grind will make 0ver 600hp in a 11.1 383 and afr 210 and vic jr or air gap dual plane. Has a very fat torque curve.
Sorry what happened with old channel
He got locked out after the death of his partner
About that lsa.. i have 350 with Edel heads. Short headers. And i have bougth comp cams Cam and it had lsa 110.. should i try to get better? Flat tappet lift about 0.5 . 1.6 roller tip Rockers. Thanks for great videos.
Yes give us more information on a specific build with a dyno sheet at the end. Your 383 you showed at the end with 12.5 to 1 compression, are you saying that can be driven in pump gas on the street? If so is it because of the dynamic compression ratio, which I would assume would be affected greatly by LSA? I have a 383 in a 66 Caprice and I want to ring out every bit I can from it. Thanks again for sharing your knowledge :-)
Boss lots of modern day cars are 12 to 1 compression also engine masters did a test and it was fine on 91 pump gas
@@raymondguzman5083 engine masters engines typically run super high compression since they are still "new" and sealing out every bit of oil. Modern cars get away with high compression due to aluminum heads, coil plug ignition rather than a distributor, and direct fuel injection that ensures atomization. also their combustion chambers are superior designs, but a lot of modern aftermarket cylinder heads are right alongside.
look for hoow degreeing and how the Opening point and closing , in dynamic compression articles
@lennyperson6441 im talking about cars like modern day Mercedes and bmw they run 12:1 and other cars
@@raymondguzman5083 that isn't comparable because alot of them are direct injection or both direct and port injection and they have variable cam timing and coil on plug and they also have fancy knock sensors and the like all these things help them get away with more compression. My 2016 fiesta st is a 1.6 direct injected turbo motor that was pushing over 20 psi from a tiny turbo when stock and the engine still has 10:1 which is kind of high for a turbo motor running that kind of pressures. It's because it's direct injected with coil on plug, vct and also has knock sensors to pull timing if all else fails. An older engine build without alot of this tech it isn't ideal to run compression that high.
Thanks for all this info David I am getting ready to redo a 383 that me and my son built about 25 yrs ago and want it to really turn on when it’s done . This info from you is priceless to a guy like me so again thanks.
I used flat tops 10 out of the hole and it is 235 psi on the compression test 63cc combination chamber head's had to be mild and.060 over pistons. i can run either tbi or carb. with my signal plane. tbi drives ok below 2500 but the carb is just sad. above 4500 and carb is so much better she doesn't stop pulling even though 7000 rpm I've hit 7500 and I'm still running flat tapped manual transmission
LOVE this man!!!
Have you ever thought about adopting an older son? (I'm 63) 😂
I would like to see an engine builder perfect an engine in the 1000 to 5200 rpm range but many builder don't know about this range !
ffs the 010 high nickel bullshit again. Its a CASTING NUMBER from the cast used. NOT the alloy!
David Vizard saving me from being "you need more back pressure" guy. Well how big of a potato should i stick in my exhaust????
I used a 4 hole spacer that i modified by gouging out the passenger side
Divider so it looked like an oval race track and it equalized the plenum so
Much that it sounded better on the dyno and with 4 jet sizes up it made 20 hp more, i know some was from fuel. This was on an air gap 406 sbc.
I remember reading his books as a teen. And reading and learning why a 350ci engine and a 350ci NASCAR motor made wayyyy more hp. Resonate tuning. Pressure wave tuning that the exhaust has more of an impact on induction than the piston going down. Air has mass therefore velocity. David should go back to the basics and explain the physics of an induction engine and what is actually happening. Ohh piston goes down and draws air in. Noooo nooo noo. So for street enginens. Maximize the overlap period. Cam selection, cylinder head flow.. and keep in mind the valve hits two limits twice... When it opens on the ramp and when it closes on the ramp.
How do you tell if you have a high nickel block?
What about a spheroidal graphite iron l31 r , 4 bolt main block? Could that make 600 hp reliably?
I like what I see.. Great video(s).
Anyone have the build specs? Dont have 32 min to kill right now (sure its worth it DV is a master)
Thanks!
3:44 I remember when 383's were first being built people were using 6" Olds rods.
Thanks for your infinite wisdom and knowledge that you have inspired me to try to build an
engine, even though I don't have a car or an engine at this point, but it sounds like a lot of fun . I think I find an old station wagon keep it stock looking and build a sleeper . Thanks for sharing . Extremely sorry for you losing your best friend , I've lost a couple friends recently as well . I pray that you know Jesus Christ, And I pray for you and your family in these latter days .
Can I use an ported 800 cfm Q-Jet on this application or I'm just dreaming that it can make simular HP ?
What is your thought on need for a forged crank in a 383 that will make less than 600HP? I see you used cast. Everyone is telling me to go forged at about a $500 increase.
Save your money
more cubes the better the heads have to be time and time again 383-402 strokers with stock ported heads and it doesn’t perform
It was a shame to lose my favorite muffler. The sonic turbo.
Always good videos, good advice, good tech info
David I had to use four spacers on my cadilack 472 just to get the linkage to cleared using a elderbrock carb a750 cfm I did not have the kickdown adjusted but that car had outstanding gas milage and worked quite well
What is the vacuum on this motor? I would think it would be around 10 ? Love the video. I have to see it again.
Love the knowledge. My old school brain can understand the information as presented. I would like to know more on building when using factory Fuelie(1.94 & .02) heads. I want everything to look as original as possible. You know, a full out sleeper . Sorry for "our" loss of your partner.
Thanks for sharing the knowledge.
Thank You Mr David. You are S True Gearhead. Go for it win win win. Air in Air Out
omg!!!! you are the man! thank you sooo much!
Thanks for the videos
I’d love to see it with 12 pounds of boost or so!
compression is to high to boost.
Wow your vids are great subbed and looking forward to my first book of yours!
Great Video David, I always learn from you. AG
Would dual 4" Ram Air and windage tray help?
Subbed and liked… such a wealth of knowledge!!
I do have an serious question. I wrote to Comp Cams, Lunati, and Howard Cams. All I got back was from Howard’s Cams. This my second 383. I am with almost with the same set before I saw this video today. I too have the Scat 9000, Scat 6.0 rods, Wiseco 11.15:1 with the AFR 64cc 1.6 Aluminum Roller Rocker. You talked about Howard’s Cam. They gave me 110275-12S. I really wanted an Lunati Retrofit Hydraulic Camshaft because the other 383 have an CompCam. What LUNATI would you recommend to me. Thank you.
Real Treat:)
Improve on this video?
No Sir - it’s a awesome video.
That’s why I refer to you as (King)
King David Vizard:)
You and Ben Alameda of Las Vegas Nevada:)
The two aerospace engineers:)
Hello Mr Vizard!
I realize that this is an older video but it's of subject matter where a question I have would apply.
I would like to start off by saying how I have enjoyed your work over all these years. I am 55 years old and have been reading your work all my life. I also have bought several sets of your mufflers over the years, as well!
Alright, I have a few questions about water jacket filling of a high performance street engine. The engine is a Ford 351 Windsor stroker to around 420 cubic inches. I say 'about 420' because I have not ordered the pistons until I see what the bores clean up at. I'm using a very old engine block for strength.
Back in the day, people used either lead or cement. I also remember how everyone who filled a block, filled it to a different levels.
I would appreciate your opinion as to what to use for a filler and how deep to fill the jacket for street use???
Any and all information is appreciated!
PS, I donate to St Jude around every year or so, and think that you are doing a fine thing to help the kids.
Take Care, John
I was wondering what the duration was at 50
The best boosters are atomized boosters.