I wasn't able to upload the actual dyno test that made the best HP numbers, this was the first carb it was a terd out of the box we kept tweaking this thing because our thinking was the carb is new, after we changed it most of the problems went away eventually, we hit it with 200 shot of NOS and it made North of 600 HP
i want to get to engine building, at first i wanted to rebuild a 350. but they told me an LS1 would be better and has much more support. is that a good idea?
That's is awesome. Did you guys use a dry shot or wet? Msd box for timing retard if so what timing numbers were you using on nos? I am learning more about nitrous and it seems it's like Freiberger said " nitrous does not blow motors, bad tune ups blow up motors". Thanks for all the great content. 👍
@@_454_ there are reasons to build an LS motor...support isnt one of those reasons...SBC's are hands down the most supported motor by aftermarket ever.
@@cuzz63 i am in Saudi arabia, LS1 has much much more support then any sbc. not to mention performance parts for SBCs have to be bought and shipped from america because they are extremely rare in saudi arabia. performance parts for LS engines are everywhere. appreciate the reply tho
Simply amazing how back in the 60s to get that kind of power you would need Dual quads and 12 to 1 105 octane. and hardly ever would you see a factory corvette engine get more HP per square inch with all that. What I would have never thought of is the 2 inch spacer. We all know high rise manifolds ad torque but to think you got more HP....It is all about combination finding the exhaust length and intake length that meets maximum flow to the cam curve is an ART.....you did it.
Glad to see this. I took a similar 350 with flat top pistons and added small chambered Aluminum heads that gave me 10.2 -1 compression, a edelbrock air gap intake, 650 holly double pumper brawler carb and a 498 lift flat tappet cam so It should be making similar HP on 93 octane.
i want to get to engine building, at first i wanted to rebuild a 350. but they told me an LS1 would be better and has much more support. is that a good idea?
Nice to see, I've got 2 Ford trucks with 351 w and m. Both are suppose to have good bottoms on them and I was planning on doing pretty much the same thing as you did with that 350.
@@Anarchy-Is-Liberty it's a high deck block. They were low compression low horsepower but they had low end torque for big cars and trucks. Which is what I have.
@@Anarchy-Is-Liberty 351M is a 335 series Cleveland replacement by destroking the 400 with a 351 stroke crank. Same block as 400 so higher deck height. 351c Heads interchange tho.
Well I've watched quite the different episodes on engines from a lot of other people but it seems your building motors is better than some with all the high dollar full race no other options available for the plain man or enthusiastic person who would like a better choice to enjoy the simplest things to make a difference between a good time & good choices. Thanks for sharing the video
Original 327,I changed the cam heads and intake,600 vacuum secondaries,with a tube 400 Trans made about 340 at wheels,which probably is around 400hp not bad on an old 327 block
Impressive how much improvement you got from changing to the 2" spacer. It would be interesting to see what would happen with an old Torker or Streetmaster single-plane.
@@_454_ says farther down in the comments it was $2500. over the engine he had. Engine he started with didn't seem at all special to me. He does describe the starting point in detail in part 1. All the videos on the channel are great I think, if you are a car "guy" but not a millionaire, you should subscribe.
Any SMC 350 man ( a Dart block is always a real plus ) would be proud of this gem. Going from 250 hp and lack luster torque numbers up to 412 hp and 432 ft lbs is a fantastic gain in anyone's book. That thing was really making torque all across the pull too, that's nice!
I agree this is a thing that you could do in your garage in a week or two and the results are dramatic the first time you nail the gas I have had a few people talk down on this saying it's weak power numbers but for the money spent on this up grade I think it;s great for 2500 bucks any decant 350 can be transformed Edelbrock even has top end kits there is always craigslist as well I would look around you can fins good deals on used parts
@@Myvintageiron7512 To tell ya the truth, I believe the guys who are talking down & scoffing at the numbers in power gained from these reasonably affordable upgrades, are just a bunch of young youtube warriors who never built an engine in the first place. They watch youtube videos where shops are throwing everything into these engines ( with unlimited funds & resources ) with results north of 550 hp, and they think "that's the way it should be done". Because no experienced engine builder would belittle this particular project considering the budget window & selection of parts that were used.
@@howabouthetruth2157 Yes, or they watch street outlaws where they're making (or now making) 3000-4000hp but don't realize those are $150,000 engines we're talking! Not something you can do in your garage for $2,000 buck's! And have probably never rode in a 400hp car in their lives! 400hp is fun stuff!
Great video..thanks for your time on putting these videos together. I'm always learning something! Question..Do you have time to do a video on tuning? I have a Holley sniper and was curious on how you'd do the air/fuel & timing. Again, thanks for your knowledge & tips it's greatly appreciated..
I wish this guy was my best friend. I do all my own wrenching but when it comes to maximizing the power/torque out of my 350 I don’t have quite the time or knowledge. Any mechanic near me is a hack…..
I would love to know your opinion on BluePrint engines. 355. I will be putting it in a 86 c10. Thank you for all your awesome tutorials and your over all teaching abilities. Everyone have a great day!!
Awesome! Congratulations for this build! Would like to make 250, 280, maybe up to 300 hp on my 350 TBI from 89. From which power range I should start to think about brakes and gear and other things? Thanks!
Love the video man !!!! Only guy I trust that actually knows what he’s doing… question i Have a 93 chevy caprice wagon 5.0 tbi motor from a truck . What will be your suggestions for me to get decent power . Do u recommend any heads, Cam & Intake manifold I can use that will suit good for her while still using my tbi set up ?
Unless it is a vacuum secondary carburetor, 750cfm is too big. Won't see that fully needed until 8000 rpm. Needed a 650-675cfm carb to start with. That's why the spacer was needed. Too low air velocity because of the carb being too big.
Sadly soon all combustion cars including classics will be banned from public streets in entire EU and Scandinavia :-( In Germany the Green Peoples Party gave order to shorten fuel supply from 2025 on by reducing all conventional fuel stations to only one state operated central gas station per city or county. Now they want to slow down all the gas station pumps from 20 litre per minute to 2 litre per minute...From 2027 on in the EU certain car spare parts will be banned too....as exhaust systems, turbo chargers and even some engine and gearbox oils...California and New York will do the same from 2027 on.... So no investments should be done in oil burning cars any longer....They even created a new kind of crime here, called emissions and smoke crime (Bundesabgasbespassungsverbotsverordnung)!!!
The old Edelbrock catalog their crate engines make more power with the 180 heads than it did with 200cc heads. I’m not saying 432 hp is bad but for the money in this engine. I would have guessed it made a lot more. I know short blocks can be plain vanilla and it doesn’t make more power. Just think the 200cc intake ports with that much compression would have made a few more power.
I agree that has been our conclusion as well the 200 is a bit too large for a 350 the main reason we wanted the 200cc runners is beacuse we intended to spray this with NOS it made North of 600 with a 200 shot there is also more there N/A with tuning we think there is 25 to 30 more
Maybe that would be a great test someone buying an engine out of Edelbrock then building an engine with Edelbrock parts and with the same fuel and air because altitude plays a big factor
So, I've got a question that maybe you can answer for me. I started buying parts to build a 400 (406) SB Chevy for a very decent street motor. In that parts list included a set of AFR 195 cc Street port heads with the 2.05" intake valve. But, as I've done so many times before, I changed my mind and decided to order a simple ZZ4 350 short block and build it up as I didn't need 500-550 HP for this new particular build up. So my question is this: The ZZ4 engine uses a 4 valve relief hypereutectic piston in the short block. Do you think that My AFR 195 cc heads will work with these pistons? Remember... the AFR 195cc head uses a 2.05" intake valve which I believe is moved .080" away from the exhaust valve for clearance and flow. The ZZ4 has the smaller valve reliefs. I know that a head with a 2.02" intake valve will work, but, I'm concerned that the AFR's might touch the side of the valve reliefs. Thoughts.....
What was the idle like on this? I am surprised the power curve didn’t carry up to 6500. Maybe the cam was out of juice by then. Probably this combo is better for the street. Anyways probably even more power up top with a different cam? Great video!
Yes you are exactly right the cam is a bit small but it's what we had on hand and it gets the job done in a street car it's probably a good choice we have done this combo with a larger engine pro cam the HP was solid and a bit higher all the way through 6500, but lost TQ in mid range that's not really what we want on the street
Sure, but it depends on what the car or vehicle itself is going to be used for. Example: a tight road course type track with tight turns.........vs a drag strip or super speedway. Small blocks and big blocks all have strengths & weaknesses. But it's hard to beat the easy torque numbers that comes with a big block, for sure.
@@howabouthetruth2157 i build street cars so to me nothing looks better then a big block and i do understand racing some have limits to what u can run grew up next door and with terry fisher
Hello sir I have a vovol penta 5.7gs marine stock 250hp at 4600rpm any recommendation for most economical way to increase HP for this engine I hope I can get 280 to 300hp at 3000-3200 rpm
we ended up with a 79/91 jet combo we did not change the secondary's just primary the twin power valves were sized based on vacuum signal I don't remember off the top of my head what they were we are 1200 feet above sea level so we have thick air higher altitude may be a little fat with this jetting.
I'm not sure this cam and lifter set is a roller but we have had it floating around here for years just for testing dyno stuff it's probably 15 to 20 years old even tho it only has about 20K worth of time on it. I would call ISKY directly and see if they still produce it if not they may be able to grind you one
Most professional engine builders don't own a dyno. He took it to an associate's shop which has a proper dyno set up in 2 rooms. ( 2 separate rooms for obvious reasons. ) This is how the vast majority of professional engine builders operate. They build engines in their own shop, then run over to test on a dyno, if a customer wants to pay extra for documented dyno sheets. This is how it's always been done.
I wanted to ask you a question, let's say you have a 57 chevy, that came factory with a v8. Would you be able to take the clutch and pressure plate/flywheel off of that and install it on a say 73 bbc?
Hello Sir, out of curiosity what was your base and total timing and do you think an RPM airgap style intake would greatly benefit that setup? Thanks and nice build.
The base was around 10 and our total 32 there is more there the distrubtor we used was not a very good one there it 25 to 30 more HP in this thing with better ignition and tuning and well North of 600 hp with a 200 shot
200 cc runner around 10 to 1 the runner is on the big side for a 350 and the compression a little low but it works out ok on the street and also it's going to get N2O
I do not understand why you are wasting your time on these engines, you really need to be building Pro Stock engines, I bet you could set the record the first time out.
That's not the goal nor the direction he wants for this channel to go. And this is just a small glimpse into what he has going on. Just like he doesn't really mess with LS's too much on this channel. And doing a tailgate rebuild. It's not a waste of time nor a waste of money. It's a $2,500.00 budget build small block that's making 400+ hp and tq -impressive!
@@jamesmooney5348 I like to watch the none LS motor channels !! I like the LS motors but I am old school and realy like the old school carb and timming tuning, not with a computer.. I know thts the future but I still love the old school sbc ❤🙏