Engines like this are often more fun in a true street car. Low maintenance, runs on pump swill, plenty of torque and no obnoxious exhaust note for the neighbors to complain about.

That engine makes more than enough power to break every factory drivetrain piece behind it despite being a mild build. Nice work build target achieved!

For a street only car without a posi...I wouldn't change a thing. Great build!

Nice build ! I just dyno'd my 388 sbc jet boat build. It's zero deck .039 quench 10.6 compression. 4 relief flat top Icon pistons. The heads are what I had laying around and are considered wrong for this combo. Old school Victor Jr 220cc race units with .208/.160 valves, 5 angle grind. The head ports are bigger than the Air Gap intake ports. No material on the intake to match so I left it alone and used fel pro-1206 intake gaskets. The cam is a step nose retainer plate Comp billet core with iron gear. 2 degrees advanced, 230/236 , 598/598 on a 113 LSA. 1.5 comp ultra magnum steel rockers. I used low buck Elgin drop in roller lifters with factory dog bone retainers and tray. The valve springs are what #'s worked. Crate 502 GM BBC springs. It ended up liking 38* timing and a 1-3/4 open spacer on the stock Air Gap intake. Carb is a Quick Fuel QR mechanical 750. Secondary jets are 80 pinned at .090". Primary air bleeds are .031" sec are .035. Made 474 torque /4900 475 hp /5400

I’m gunna disagree with you Eric…. Runs smooth, great street power, no oil leaks, and no headaches…it’s a bragging engine. Awesome job!

I've broken the spider gears of the old 7.5 inch 10 bolt. Right at the starting line doing a dry hop. That little 350 is a easy 12-13 second engine in that firebird.

Not bad, by the time you throw an alternator and belt driven water pump and power steering pump, torque converter, trans and drivetrain it will have about 330hp to the wheels

Great numbers with a 215 cam ! I think with Holly controlling the timing and fuel and 1 5/8 headers it could see 440 tq.that is a great combination for a street car!Good job Eric and thanks for sharing 👍

👍👍 Thanks for the information at the end!

great video, this was a lot of fun to watch, great job

Basically I built the same engine Vortec L31 truck roller engine because I was afraid of all the cam failures lately. Same pistons stock bore same rings .024" quench and 9.72-1 compression according to the Diamond Pistons cal. sheet .028" chevy performance head gaskets and same bearings and Lunati 20080721 cam 270/278 and 515/530 and AFR enforcer heads. I have yet to install it. It's a tried and true recipe from many youtube vids and it makes from 413 to 440 hp depenging on the dyno etc. I'm putting it in a 1989 Chevy C2500 truck with a 700R4 with a 2000 stall Hughes converter and a stock 373 gear rear end and should be a tire fryer and fun to drive and dependable. The orig. TBI engine was 190HP and should be night and day difference. Thanks for the dyno Video.

What I've run into was decades ago I tore down a 350, and to make a long story short, didn't pay attention to mixing up a short headbolt with the oil pump bolt, which is a little longer and pushed into the main bearing, deforming it. But original pump. Just smoothed out. Now I just get a stud for the pump

Excellent low-budget build!! Congratulations, Eric. Nicely done. Surprised me with lower compression & small cubic inch. Great video & dyno info as well. Thank you

This was a very enjoyable video. Awesome numbers on that 350

I enjoy your videos alot and the story was a good one, thank you..

Hi Eric, The people that are questioning your choices I guess don't know how well your name and reputation carries in motorsports! It's not like you're a newbee .Thanks for your Knowledge and sharing it Eric!!👍👍👍👍

Thanks for sharing Eric! enjoyed the video. I wouldn't have thought you would have pinging issues as the quench is really loose for a NA motor and larger quench areas help with detonation and allow for a bigger tuning window.

As a engine builder its not always about max horsepower. Its about giving the customer what they want and need

Thank you for making these videos. I know it takes considerable time, and there is never enough appreciation, but I get so much from your videos. I love the humility with your 'I am not superman' attitude. To us amateur engine builders, you are not just superman, you are closer to a God. Thank you again and keep them coming. Thank you!

Fantastic video as usual Eric. Always watch to the end. why not finish what one starts.. LOL.. never too long.. Great content and great Job.

RIP right rear tire. For what it’s worth, I had a 3rd Gen Camaro and installed a torsen style limited slip, had excellent street manners. Just in case she gets sick of blazing that RR off when she’s not even trying to.

I was guessing it was going to make somewhere between 360-380hp. This thing is a beast! Gotta be the head work you did and that roller cam!

The way I see it, if it's got 8 cylinders, any kind of decent head and any kind of cam it should make 400hp! That little 350 is doing good, really good, with a single wheel squeal, well you already know! That one should last her a lifetime!!! 👍🏻👍🏻👍🏻🇺🇸🇺🇸🇺🇸

What I believe happened with the oil pump bolt, and I've seen it before, they used a short outer 4 bolt main bolt and not an oil pump bolt. They're not long enough. Only catch 1/4" of threads or less and once pump vibrates it breaks those protruding threads. When laying out your bolts for mains make sure there isn't one longer one! That's the oil pump bolt! It'll fit the main because those bolt holes are open and that bolt won't bottom out. Oil pump bolt is about 1/4" longer. I'm retired machinist. Seen this at least 6 times.

Hyper U tech tick how we say it around these parts. Or Hypertechs for short. I painted my first engine build yellow back around 40yrs ago. It was a 400 Pontiac from a 67 Firebird. Ran pretty good for a kid building it. I had a uncle that had a 69 C-10 drag truck he raced on the street back in the early 80s, it had a tunnelram equipped 377ci SBC in it putting out 600+hp with a Jerico 5spd in it. The engine was painted yellow. He shifted that thing around 8800rpm. Ran mid 6s in the 8th, I was impressed with it, so I painted my engine yellow too. It was a popular engine color choice back in the day.

I have painted my engines yellow since I was building models as a little kid, still do 😊

Impressive little engine. Nice street car engine.

Lots of similarities 360” sbc 200ik’s edelbrock rpm air gap Wilson 4 hole 2”spacer 750 hp no power valve locked out 38 degrees probe .125” domes comp solid roller 254/260 108 lobe sep. in an 85 Firebird that was a 2.8 4.10 gears 275 drag radials th350 with tci 3800 10” ran a beat so far of a 10.98 at 123 1.48 60’ with foot brake.

I was thinking 410 to 415 and you got that done! Sis should be good to go!....

Not everyone wants or needs race car engines. It went above and beyond my expectations. Way better than my 355 with a xe284h cam with 1.6 rockers.

Sweet Build very respectable ## !!

Well done. You built for the customer. That what counts.

Nice video, Eric, she sounds good 👍

Good video bro, the info we are looking for 😎

Better hp numbers than I thought too. The cam is relatively mild. Cool

Doesn't want lumpidy lumpidy lump lump.. Then has 570 lift cam in it lol! Sweet!

waiting to see, ear to ear grin/ smile from your sister on her 1st drive. don't deprive us that fun video. lol probably best to leave the one wheel wonder in it till she gets used to the power. ( easier to control , for people not used to loose rear )

Sound healthy to me Eric !! Just another great day at the office

Eric, man give your self some credit. That 350 kicked some ass for what it is. With stock GM 2.02 heads and a typical hot rod 220@.050 .480 lift flat tappet cam, reality is that would be a ~325HP 375TQ engine. Your heads and cam added 100HP dude! Your stuff kicked ass on this mild build. If you don't want to brag, at least take credit where credit is due. You can be humble, and still point out you did good on this build! Cool thing is, is those heads would support 600+HP on a race prepped 350. Who knows, your sister (or kids?) may want to step that engine up to hit the track some day.

It's all situational and what your engine was being built for. Lov it. At least you didn't give her a full 3/4 race cam.

Nice job turned out good

I'd say the intake was the restriction since the spacers didn't change anything,, a 604 crate motor blueprinted will be in the 440 range both for HP and TQ with a single plane intake ,, 750 carb ,, did see one make 451 hp , matched the track record so I think it was an accurate Dyno run ,,604 crate cam is 208/222-112 @050 , 1.5 rocker , 490 lift range ,, they have around the same compression, ,,

That's nice power, I hoped my 383 with stock World SRs and a 276HR would make that kind of output. I bet you're getting 16-18" of vacuum as well and as you said a smooth, lope free idle.

I only know what i been told and seen on some dyno charts . First off is your better off with a bit smaller cam and better heads . A good set of heads can make a cam carry out farther than it normally will . So this is in my option for the dyno reading here thanks for the videos

Those Fel Pro rubber coated steel shim .015 thick 4.125 bore gaskets work pretty good also.

As you said dyno to dyno the numbers are different, but the curves should be the same. That is a good reliable engine that she was looking for. Job well done.

I think the wide lsa and small dual plane calmed it down and smoothed it out for a very flat torque curve. I think it's a great drop it in, go have fun engine, I want one! I would have though the big numbers would kill bottom end, good thing the engine didn't care what I thought. One tip....never tell the engine IT'S NOT AN LS-XX... and it will continue to make you happy.

I'm commenting mid video. Great choice with the sniper setup for your sis. I love mine.

Nice motor she will be very happy!

That's really good results for a very small cam!

I built a stock cast piston 350 with stock vortec heads,howards hydr roller 510 lift,summit air gap intake ,670 avenger, summit 1 5/8 headers.made 415hp 425 trq.only spun it to 5,500.the vortec heads do a good job of making good power for people with a low budget. Use same combo with a set of alluminum vortec head with a little more compression (quench) it would make about 50 more hp

Great video

The cap threads get broken or distorted from the wrong pump bolt being installed. The two odd SBC headbolts get mixed up with others on the engine. The oil pump bolt fits the head in the oil return hole, but the head bolt comes up a bit short if used in the oil pump.

Perfect cam choice . Its now always about max horsepower . Reliable , smooth and no oil leaks will make her happy .

Nice numbers Eric number 7 pull will work nice in the street and have good shift recovery, your average numbers are excellent it will pull hard through the gears and the extra exhaust will work good with an exhaust system, good job

Thanks for the tip

Mahle makes a nice .026 thick, 4.125 bore graphite head gasket that works pretty good. Part # 1264MHP I believe is the part number.

She's a charm! I called the torque, but got the RPM off by over 30%. I wasn't even on the dart board for the power figure.

Interesting dyno results. I'm building a 385 similar to this with about the same intent but I don't requirea perfectly smooth idle. Just an 87 octane burner with stock stall and vacuum for the creature comforts. I have Afr's version of your heads on order. Planing on a simple 60 grit chamber and bowl blend. Under 9.5 compression for 87 but will be about. 040 quench. Pistons will probably be the thin ring KB hyper 18cc dish. Eyeballing something like the lunati voodoo 219/227 on a 112lsa. With a 1.55/1.6 rocker arm combination would put the lift about. 549int/.548exh. Waiting to spec the heads before ordering pistons or cam. They cant get here soon enough 😂

Heads saved you . Intake and cam not optimal at all. Single pattern cam with your same intake lobe and a 106-108 Lsa would make 30+more ftlbs in my estimate . Bleeding off a lot of midrange cylinder pressure

Absolutely Best little Sister motor Build !! .....For That little Short duration cam, It Really cranks out the HP..... Your relatively high Lift Cam gets the Job Done !!

Dude, 420/420 with that compression, loose quench, lower performance intake and 215* of intake duration, is really good. I estimated 385/415. I knew the tq would be decent, but I expected peak hp to come in closer to 5500-5600, mainly due to the intake. Your sister’s not going to know what to do with triple the hp/tq she has now.

Man, he needs to kill that spider in the control room and buy a swiffer to snag all those webs 🤣😂🤣. Great simple engine build. Heads and cam match are perfect.

That same exact thing happened to my first small block I built. The whole top of the “volcano shaped area“ crumbled off during mock up. Luckily, there was enough room to thread a couple more threads in and use a stud. Damnedest thing I ever saw.

Excellent, I wouldn't have expected 400hp/torque either, more like 350hp or a little more

Good job 👍

One great lil street motor for your sister good job my guess was 429 hp

That HP seems extreme for who it's for, I would think some 1.94 heads, flat tops, something like a 275 hp 327 cam, 600 cfm carb would be around 300 hp, better low end response and gas milage. My two cents...

Not only did the non-spacer pull make 2-3 more AVERAGE power, but it'll actually fit under a 3rd gen F body hood.

Ok . Looks like I guessed 14 HP more. Thanks for the videos.

First, you built the exact engine your sister needs (wants) for her Firebird. I guessed higher on torque and horsepower because I thought the heads would carry more torque higher in the rpm range. I’m guessing the low profile manifold held it back. In the car the shorty headers you’ll likely use will kill some of that torque, but it’ll drive well regardless. Great results Eric!

What was peak airflow on the flow bench with intake installed at the lift of the camshaft?

1st engine i ever built was yellow. I knew i liked you for a reason ; )

Biggest issue is she satisfied, nothing else matters. I have seen people happy with MUCH less and some mad with 100 hp a hole. I wish I had a dime for every time I read or heard vizard mis quoted because people don't follow things all the way to the end. I have a 2.8l puking chicken and just about the same build going. Hopefully I get similar numbers because anything near 400 is really fun on the street and can still get enough economy to cruise to neighboring towns. Great job

Hi Per U Tek Tik pistons The heads are not too big.....big flow out of a relatively small port means big velocity. Add in the dual plane intake it will pull on the carb hard.

COMETIC MLS gaskets seal really well I've used them on non surfaced blocks without any issues but 27 thousands is the smallest I've ever used

Good little motor, what transmission are you running in the car and what is the idle going to be once you put the efi on in the car? Obviously you won’t know till it’s running in the car

Guys in the comments talking about how to get more out of this combination, and here I am thinking about how it could be made even lower compression and idle even smoother. In an 88 firebird with a T5 and a ten bolt posi with just under a ten inch wide all season tire, I would want about 360 hp by 5,500 and just under 400 torque. Thats enough to blow the transmission, rear end and tires off of it on regular tarmac. Anything more would just feel like a grenade. Especially if it has the 700r4.

In my opinion, this is a sweet combination. Should bring her a lot of carefree miles and could hurt some feelings

Thank you. I have been lookning forward to this video. :) Just want to say I posted that I guessed about 1.2 lb/ft pr. CID. 425.1 lb/ft divided by 355 CID = 1.197 lb/ft pr. CID, right? Not way off I think. Mild engines like this can not rev and therefore always produces the same amount of horsepower and torque. :)

I'm going to guess 485hp with that combo. Low duration but great lift and everything flowed.

Nice Job

Made some nice power especially for the goal you were going for. I could hear the unevenness of the Dyno load on top end of all the pulls. I know it's not feasible but it would be kind of interesting to me to see the numbers down in the 2k range for on road use 350. Thanks for the vid Eric. 👍

Great street engine.

That's so Kool... Twin sister huh... Kool man..

425 HP is a pretty stout street engine, especially with that flat torque curvve.

what 've seen on utube if you cut the divider down is like adding a 1 inch spacer

With that much power, the car will feel helpless coming off the line with one wheel peel... I experienced that feeling in my '65 GTO back in the day when I overheated the posi and it stopped working until it cooled back down again... without posi the car felt like it wouldn't get moving... Was predicting 430 torque and 450 HP... until he mentioned the bad engine quench distance which hurt compression ratio and torque, and high RPMs power...

Eric , think about what you're reading on the plug at the top, versus down at the base of the porcelain

Nice information! Would love to have seen a 1” plastic four hole with no taper. I’ve only had five of my own motors and probably seen 50 others and the dynos rattle a lot.

I would like to know how egt affect power doesn’t hot exhaust flow better then cold exhaust. Turbo cars are the only ones with enough exhaust heat and back pressure to melt something I’ve never heard it be an issue N/A even on 800 hp builds

Hey bud question building a 355 sbc. Wanting to make it a bad ass street/strip engine. Going in a 83 c10 truck. I want 10.5 to 1 cpr heads in gonna run afr 195cc. Howards hyd. Roller cam 227/ 233 duration 560 /560 lift 110 lsa torker 2 intake 650 Holley with this set up what kind of power you think I'll get out of her? 93 octane

I had 2 breathers on my valve covers like that. Oil everywhere. Could you recommend a pcv or evacuator setup? Thanks

What do you think about Rhoades lifters? That has a laser cut "leak"

If it runs it’s good. Yeah! Take credit for it.

Tbh, those were my initial numbers, but then I thought it would sound like a weed joke.. :D :D Nice package! It has a lot of range, and smooth delivery. A solid street engine. The car's rear end could use some LSD, though..

Thats a really nice build. Sure will make that Firebird get up and go 👍 I got that v6 in my Fiero and its not enough for that car..

Ok say what you want ,but my 383 ,with zero deck, Afr CNC ported, custom chamber, big valves, huge cam 680 lift 108 lobe separation, 830 carb. Love is but the power difference is like quick and fast.

Hopefully she doesn't have a heavy foot the stock rear and trans are probably in jeopardy 😂🤣 Great work.

I guessed 425 torq at 4000 amd 425 hp at 5500. That's what happens when you have enough head and don't have to try to crutch it with to much cam. You don't need tight lsa to make torque when you are not trying to crutch a poor head. PS Given the rpm it made peak torque and horsepower, the conservative dyno and lack of jetting and timing changes I suspect I guessed low.