406 sbc vs 383.

I imagine a 406 could close to the numbers, but if I had to guess, it would be down 20 hp and 20 ftlbs vs the 3.875" stroke..... but not sure. ... 383/200-4R/12-bolt w 373s 224/224 HR cam 1.57 10.97 @ 121.2. Top. 77cruiser Guru ... nevermind,. posted on for 396 sbc, not 406. Top. 77cruiser Guru Posts: 1486 Joined: Sat Dec 30, 2006 3:32 am ...70 nova street/strip, 383 n/a sbc, all steel, best e.t. so far 10.908 @ 122. ... Here's a 406 crate engine from Tristar for $7,195 that uses a Dart SHP block, 10.4:1 compression, Dart cylinder heads and intake, MSD pro billet, Quickfuel carb, etc. 530hp / 520tq dyno tested. 2 year parts warranty.Both are 406 SBC with AFR 23 degree heads, one hyd roller the other is solid roller. Both are 10.4 to 1 CR and run fine on 91 octane at 2800 ft altitude. I don't spin them much over 7k RPM. I drive the solid roller cam car (262/269 @ 050) around town with lots of idle time in gear and slow cruise speeds with no issues.Jan 7, 2008 · 383 or 406. by bigjoe1 » Mon Jan 07, 2008 3:58 pm. The 406 will make about 30-35 more HP than the same stuff on a 383. I used to do lots of 406 engines, but the blocks are getting soo rare, most of the time now I can only do a 383. The stock block is good up to about 650 HP, after that, you better get an aftermarket block.

NKB 200cc/64cc ULTRA HIGH FLOW CYLINDER HEADS, STRAIGHT PLUG, FOR SBC CHEVY 327 350, 355 383, 400, 406, 421 ENGINES. Setup for hydraulic roller cams. 200cc RUNNERS, 64cc COMBUSTION CHAMBERS. *** IMPORTANT NOTE *** You may add items into your shopping cart but in order to check out you will have to call us.RPM Air-Gap. 437 ftlbs @ 4350. 402 hp @ 5200. Super Victor. 436 ftlbs @ 4700. 427 hp @ 5650. So, Same RWTQ, 25 more RWHP. They are putting down the same hp at 4500 rpms, by 5600 the Super Victor is up by almost 30 hp and at 6500 RPMs, the 2925 is still up by 22 hp. This is on a Dynojet chassis dyno.22556 posts · Joined 2007. #2 · Dec 16, 2009. I have used the Scat 9000 in 3.75" stroke in three 383's and a 406, all were 11-1 compression and run to 7500 rpm without failure. Two of the 383's are 4+ years old. Have also used the 3.48" stroke Scat 9000 in two 350's, one at 13-1 and 8200 rpm, the other 11-1 and 7500, no failures, so I guess I ...

383 is cheaper to build and can be just as powerful as a 406 build, the small cube difference can be ignored. Lots of options for the 383 from mild to wild, 400-500HP …

C3 Tech/Performance - 383 vs 400 sbc - I built a 383 with hydraulic lifters, flat tappet cam, and vortec heads last fall. ... Knew a guy with a 406 in a 71' Camaro, and that thing flat out flew though, easily revving to 7000 rpm. Don't know what he did in the build, but did something right. Don't think I'd be to worried about the siamesed bore ...As I muddled over which heads to install on the awaiting 383 Chevy, luck walked right up and introduced itself. ... Jesse's 406-inch street small-block produced 406 hp at 5300 rpm and 470 lb-ft of ...Re: 383 vs 400+ Engines 03-07-03 04:59 PM - Post# 191042 In response to The_Stupid_One Somehow I fail to see the 383's making more power than the 400's. AFR's website has their 400+ inch packages making 50 horses more. With EA3.0, the same package with 383 cubic inches is an average of 26#ft lower on torque and an average of 17 hp less.Assemble the engine - crank/rods/pistons (less rings), and cam of course, and rotate the bottom end - slowly, by hand. See what happens, and let us know! The downside to a small base circle cam, is 'surface speed'. Any mechanist knows this term. The smaller the dia, the faster the surface speed. The faster the surface speed, the more heat ...

Here`s where the fun part begins. The 345NP piston, is ".020 destroked" meaning, it has .020 off the top of the piston, where a normal 350 piston would have a 1.560 compression height, these have 1.540. so even with a zero deck height, it would still be .020 down in the hole.

For example, let us calculate the cfm for a 383 small block Chevy stroker engine that will see a maximum of 6,000 rpm and has a VE of 95 percent: 383/2=191.5; 6,000x191.5=1,149,000; 1,149,000/1,728=664.93; 664.93x.95=631.68; Our result is 631.68 cfm for our 383 stroker build. Using a 650-cfm four-barrel carburetor will be perfect to feed this ...

You have to compare apples to apples -- with the same brand and type pistons, same brand and type rods. Here's an example that will have you scratch your head. SRP flat top 383 piston for 5.7" rod = 472 gm. SRP flat top 383 piston for 6.0" rod = 419 gm. Eagle SIR 5.7" rod = 535 gm.purchased from Steve Scmidt a 423 short block ( Dart little M block (not shp) with 4.165' bore, 3.875" stroke, domed JE pistons (13.3 CR) and transfered the heads, cam , intake and headers to this new motor. Also added a 1050 CFM carb (QFT with 4150 base). We expected 100 hp. In truth we got about 40.Oct 9, 2008. #1. thinking about building a 283,305,or 307 this may help. A totally stock 305-307 SBC as you know is rather pathetic in both head flow and cam timing as most were designed as fuel economy combos, and most have restrictive exhaust. that doesn,t mean the engines hopeless ,if you think back, there were some rather impressive (at the ...High-rpm power may accelerate a dedicated strip machine to the fastest speed, but a hefty torque curve will definitely lay the stoplight smackdown on a race engine every time. Engine Specs ...The Edelbrock E-Tec is the Fun Team's 200-cc big-cousin version of the original GM Vortec iron head. This head offers outstanding velocity numbers, which promises great torque in a 355 or 383-ci small-block. However, the Edelbrock head does do well up around .500-inch lift with a 253-cfm flow number.406 SBC World Products Sportsman II Heads (as cast) Comp Cam 268H (.218 int .218 exh .454 .454) MSD 6al Weiand Stealth intake ... '71 Heavy Chevy - Daily driver (383,M21, 3.36 gears) '69 SS Chevelle - 454/th400 Daily driver '72 El Camino - Daily Driver, new 500hp sbc '51 3100 Truck - going on S-10 chassis.SBC CHEVY 350 383 406 NKB-200cc ALUMINUM HEADS 64cc STRAIGHT PLUG NKB-274. Available $795.00. Add to cart. Add to wish list. Product Information. UPC: 333915779185: Product Type: Shipped Product: Shipping Cost: $68.50 Number of reviews: 0: NKB 200cc/64cc ULTRA HIGH FLOW CYLINDER HEADS, ...

383 Edelbrock; 423 Commando Elite; The "Bob Rydey" 584; 582 Air Camando EFI; 618 "Super Air Commando" ... 406 - 423 - 427 "Pro Sportsman" / 15° Heads 800 HP - 644 ft. lbs. Torque / 4.155 Bore X 3.875 Stroke Here you go Small Block Chevy Racing Engines fans! ... 465 Cubic Inch / 23° SBC High Performance Engine Small Block Chevy This small ...383 Small block mild street build with huge torque HP & Torque: 432 HP / 492 FT LBS. ENGINE: 383. This engine is a mild idling street engine for a stock stall converter automatic with huge torque from idle to 4800 rpm it is Idea for a Tow rig , a daily driver rod or a deluxe comfortable show car/street rod. With proper tuning this combo can get ...World Products #024020 alum SBC in coming Months. ***** There can be severe Combination problems that can "Mask" the real HP/CID + TQ/CID percentages you will see in comparing either a 383 -VS- 406 or a 406 -VS- 434 , ETC. Last Month i Dyno tested a Racer's 401 SBC 18 deg 2.200/1.625 389CFM @28" @ .800 Lift TRE Sheet Metal ManifoldOther guys use longer rods for different reasons like is the strokers 383, 377, 434, ect for piston height, and many other things. Its your call, Sure the short ones will prolly be ok, but for my build I chose the 5.7" rods, clearanced and balanced. ... Chevy High Performance magazine built a 406 with 180 afrs with a compcam 280H and made ...Nov 16, 2005 · The 383 does have a ton of tq, and doesn't need to rev to hit good HP numbers. I believe that since you don't plan on driving this a lot, that you should consider the 454. More money without question, but you get what you pay for. The difference between the two is very noticable, the 454 will always have more low end.

The 383 does have a ton of tq, and doesn't need to rev to hit good HP numbers. I believe that since you don't plan on driving this a lot, that you should consider the 454. More money without question, but you get what you pay for. The difference between the two is very noticable, the 454 will always have more low end.It'll work, but a 600 or 650 will be able to do the job just as good, if not better then the 750. If you have a 350 or 383 that is used for street and strip, and it's pumpin out a respectable 350hp+, then, also depending on how it was built, a 650, 700, or 750 will do the job just fine. The main factors are cam, compression, and intended use.bg383 Discussion starter. 6 posts · Joined 2010. #1 · Sep 9, 2010. I have a 400 GM sbc. My plan is to bore it to 406 ci. The 406 build will consists of a stout forged bottom end (of Course). AFR heads ( 195 for torque or 210 for balanced tq/hp), 10.5-11.0 compression, 750 or bigger carb, and Leaning for a 3000-3500 stall for street/strip Use.I just put together 396 stroker small block with the edl VJ 2.08/1.60 215 cc heads. It is what he had from his 355 ci motor. I looked at them and tried to compare them to my old Dart 215 cc with the optional 2.08/1.625 valves. I got the bigger exhaust valves because I considered putting 250 or 375 hp port injected N2O to my 383.Build the 400. You can put you 350 crank in a 400 if you use bearing. spacers 2.45" vs the 400's 2.65" main bearings. As long as you use the 400's heads or have a. new set drilled for the steam holes you should. not have any cooling problems. The "normal" way to build a 383 is a 3.75" stroke. crank from a 400 turned down to 2.45" mains.So here it is....I am putting a 383 together, street car, fun weekend warrior. Compression is around 10.5 to 1. Heads are GMPP Fastburn Vortec aluminum heads with 2" intake and 1.55" exhaust valves. Based on my research these heads flow around 250-260 CFM intake and 180-190 CFM at around .550 lift.If you use small journal 327 rods on a 383 crank it is possible to offset grind the crank to get another 0.070" stroke which makes a 391 out of a 383 or a 396 if the engine is bored 60. I say, stay with the 350 and get a good set of heads and roller cam and maybe a small shot of N20.383 already in place vs. LS and you need a separate plug firing box, new intake and headers for starters. Both can make great power it's just do you want to spend the initial over 1K just to get the engine running in place of the SBC?. You could use a factory computer and then you have to have someone tune it for the mods you will do to …10077 posts · Joined 2013. #3 · May 19, 2015. The 427 SBC is the holy grail of small blocks in my opinion. My next major upgrade, or when I finally buy that '55 HT I keep dreaming about. I have had a 427 BBC, and it was awesome, but I feel the SBC is "raspier" and more responsive than the heavier BBC.Sep 18, 2007 · The 383 is a bit more radical on the heads/cam combo but it still makes all of the power of the 377 but of course has a ton more low end grunt! The 383 runs the numbers with a 2800-3200 stall and the valvetrain doesn't take a beating. The 377 hit's it's best with @ a 5000 stall and shifts are closer to 7800 vs the 383's 7000 shift point.

The most complete Chevrolet Big Block vs. Small Block video. Power capability, weights, dimensions, valvetrain, displacements, model years. Plus, a bunch o...

Pro Flo 4 on Hot Street 406 SBC. 12-10-2020, 08:45 AM. Hello, first time here. I tried to search this particular question to no avail. So I have a nice little 406. Dart Platinum Clones, with 200cc runners. 11:1 Compression. Straub Roller matched to motor and heads. 237/243 @ .050 .583/.564 lift on a 108 Lobe. This thing is actually very easy to ...

Chances are your power company in your area advertises a "time-of-use" program. How can you save on your power bill by signing up for this service? Advertisement Most power compani...Step 01:- Installing a Crankshaft. First of all, we have to purchase a 383 stroker crankshaft, 10.5:1 piston set, and rod. We have to note that adding more stroke to our engine can raise our compression ratio. The 383 stroker crankshaft became more popular than the 400 despite the larger bore.SBC Bare & Short Blocks,Chevy Small Block Bare & Short Blocks,Chevrolet Bowtie Sportsman Small Block Chevy engines, Blueprint 383, 350, 400 Small Block engines, BP383 Orders may take longer than usual to process due to manufacturers having issues receiving and shipping parts. If you need to know if a part is in stock, please call prior to ...The 383 small-block has become incredibly popular in the small-block Chevy market. This is especially because the cranks are virtually no more expensive than a standard stroke 350 crank. The only expense increase is in the material choice, from cast to 4340 and on up the food chain. This particular motor actually displaced 385 inches with a 0. ...Diversification is a basic investment strategy that spreads out risk over a number of different investments. If your portfolio contains only low-risk investments, adding some stock...02-07-13 10:07 AM - Post# 2314502 In response to Chevynovass Come spring I should be able to give some actual feedback between the 355 vs. 383. I have two 66 Impalas. The blue one is equiped with a vortec head 360 (350+.060) 10.2 compression, hot zz4 hyd. roller .525 lift 218/224, duel plane intake, 4-speed and a 3.08 rear.That's pretty much what we see with the 383 vs. 406 units. Our pump-gas 383's average approximately 475 HP and our 400's come in around 575. The problem basically with the 400's is coming up with cores. Many of our customers opt for the aftermarket blocks on the 400's. These blocks are also worth some add'l HP. Thanks, Gary in N.Y. P.S.Basically, the initial price difference of $1,248 is worth an additional 4 lb-ft of torque and 62 hp, and you can run on 87-octane fuel. If low-octane big-block torque from a small-block package ...

RPM Air-Gap. 437 ftlbs @ 4350. 402 hp @ 5200. Super Victor. 436 ftlbs @ 4700. 427 hp @ 5650. So, Same RWTQ, 25 more RWHP. They are putting down the same hp at 4500 rpms, by 5600 the Super Victor is up by almost 30 hp and at 6500 RPMs, the 2925 is still up by 22 hp. This is on a Dynojet chassis dyno.Im looking for a cam with a choppy/ mild rough idle. The XR276HR has the following specs. 276/282 duration @0.006. 224/230 duration @0.050 W/ 502 &510 lift and 59 degress overlap. MY other cam options were the Comp Cams 280HR , 286hr, and the xr282hr. thanks for your time, Mark.On this episode of Engine Power, we start and finish Stage 3 of our Small Block Chevy build. In Stage 3 of our small-block build, our 383 becomes a 406 and g...Instagram:https://instagram. collierville tn police1935 dollar5 billhome outlet north tonawanda nylamoille county family court calendar I realize this is a older thread but I wrote this years ago. Holley HP carb inflated CFM numbers Oct 23 2005. Holley is misrepresenting their HP carb sizes, a HP 950 is really a. 830, a HP1000 is about a 870 if measured the same vac as a 47-- series. The industry standard for cfm ratings was 1.5"Hg vac for a 4 barrel. inventory maple motorsucf graduation schedule Run with the F-1A-94 and a 4.25-inch blower pulley, the supercharged LSX produced 1,161 hp and 940 lb-ft of torque at 15.8 psi (Rocket 112 race gas). After stepping down in blower pulley size to 3 ... stribog sp10 a3 Jun 25, 2007 · No SBC is bad. A 383 cost the same to build as a 406 with the only exception being you might have to pay a little more for a 400 block over a 350 block. Most generally, and all other factors being equal, a long stroke small block like a 383 will make better numbers with a 106 LSA cam vs. one with a wider angle ground into it. Your compression ratio is suspect if you intend on running that much camshaft. You really need 12.5:1 minimum to really utilize a cam of these proportions.