406 sbc vs 383

Having recently spent an arm and a leg building a stout small block 383 stroker I would have to agree with you analysis. Problem was two fold. First sourcing a 400 block that had good wall clearance and strength for boring. These blocks have been widely criticised for poor tolerances and over heating.

406 sbc vs 383. 8,745. In my opinion, if someone owns a 350 block that is a good block, and wants to build a better motor then a 350, a 383 dollar for dollar is about equal and will usually out perform a equal 350. however, if starting from sctrach, without a block, a 400 based motor is a much better choice. As for the 396.

Here's some pics of my old setup. So really to build a high-rev small block, need a good flowing set of heads (I was running ported Dart II heads), a solid camshaft can't be beat for high-rpm durability, single plane manifold and matched carb (of course matched valve springs, pushrods, lifters etc).

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.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...The normal price of these engines is $100 more. Buy now to receive this special pricing! Base Pricing from: Chevy 383 — 406 HP or 409 HP: $5195 - Torque Range: 448 - 468 Ft Lbs Torque. The 406-409HP Engines come with Aluminum Heads. The 406HP Engine comes with a Dual Pattern Cam. The 406HP Cam has vacuum for Power Brakes.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. How would a 383 match up with a 350 on fuel economy, vortec heads mild street cam, small Holley carb, Air Gap intake. ... 1956, and 1957 Chevy owners and enthusiasts. Come join the discussion about restoration, engine swaps, reviews, performance, modifications, classifieds, troubleshooting, maintenance, and more! Open to all models including ...

if your looking to have a nice cruiser style engine combo, I,ve used this cam in several similar 383-406 SBC engines with very good results, and yes it likes a set of 1.6:1 rockers and I generally install it strait up not 4 degrees advanced it works ok with a stock stall converter but a 2200 rpm stall, converter would be idealHey All, World Products Sportsman II heads probably picked up 40-50 HP over my 2.02 double humps on a 406 sbc in my boat. This is seat of the pants dyno. I had to clean them as delivered, lot of casting grit left in the heads. Ports matched the gaskets so close I decided not to touch them. Power increase was sweet. Thats the only feedback I can ...Dec 6, 2008 · Re: Lobe separations on 383-406 cids.104-106-108-110? Post by SStrokerAce » Sun Dec 07, 2008 12:38 am jobes wrote: Anybody do any real testing on LSA in a 3.75 stroke small block chevy?I have always used 104-106 and was thinking about trying a 108 or 110 design.I know there is a lot of variables but just a general opinion from any experts.This ... The small block was cheaper, and much easier to work on, and maintenance is easier in terms of small parts costs. ... a 454 or bigger would cost about the same as the 396. I agree with many here who have said a 406 SBC can give the same performance. I actually built a 383 for my brother that runs very close to my 396. That motor can be built ...With a 70 cc chamber head, static compression came out to 10.3:1. My heads flow about 260 at .600" lift, and I'm pretty sure they are all done by 6500 rpm. It will pull to 6900 crossing the finish line, but the big cube small block needs good heads. You will need more cam than you have to turn 6000 rpm.I think it would be a lot more to build a 383 compared to a 396. At least were I'm at, there are the '66-'67 396 blocks everywhere and they all have steel cranks. Building a stroker will cause your wallet to have a stroke. '74 with roller 454, TH400 3K stall and Ferd 9 w/ 4.20s". '68 C-10 Pro-Street "Shop Truck" SWB.you would have about 10.5:1 with a 350 but closer to 11.4:1 with a 383, theres 43.75 cubic inches of volume in a 350s cylinder and 47.8 cubic inches of volume in a 383s cylinder. it should be rather obvious that increasing the compression changes the fuel octane requirements.

What's going on ppl so in today's video we are taking the sbc 406 to get some added power 😃. I know I said we was gonna take it easy which we are but I want...Utilizing a big bore engine block and a medium stroke forged crankshaft, this engine loves to rev! Using only top of the line components like a fully forged rotating assembly, hydraulic roller camshaft and aluminum heads, the 406" Eliminator is the engine your car needs. Check out our custom options and packages belowFor a Blue Print 383 engine Summit recommended the BPP400L dampener. When it arrived I see that it has no permanent TDC inscribed. The TDC mark is lightly painted on. The main finish on the dampener is extremely thin as well and shipping motion in the box has worn the finish down to bare metal which is going to rust.The idle air bleed may need to be changed. A low speed stumble may mean the IFR is too small to feed the transfer slot with the mods to your engine. A stumble when floored from idle could mean the booster channels need to be opened up. The emulsion holes pattern may need to be modified. Accelerator pumps may need work.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 ...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.

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pwoolford. I'm running the XR286R in my 10.5 to 1 350. I have 6" rods, dart 200cc heads, manley flat top pistons, rpm air gap and HP pro 4150 750 carb. I'm running 3.73 gears and a tremec 5 speed trans. The car pulls like crazy up to 7+k but I have major traction problems as I'm running about a 9" wide tire.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 ...FmrStrtracer. The more cubes you have, the easier it is to reach your goal. If you were to build 2 motors, identical except that one was a 383, and the other was the 406, the 406 will make more power across the entire rpm range. Choosing the larger motor allows you to attain you HP goal at a lower projected RPM than the smaller 383.It's a beauty! Fauset Racing IMCA SBC 377 383 or 406. You looking for a very reliable IMCA engine good for all tack conditions, weather dry slick or tack track? This is the one for you. This engine delivers smooth power from 5000 RPM to 7500 RPM, and yet will maintain reliability for 35+ nights of hard racing. $7199.00. Includes the following.

1,000-1,450 HORSEPOWER. Make big power and enjoy your air conditioning and power steering, too! The SBC Cog Accessory Drive Kit is compatible with your Small Block Chevy engine and utilizes a rugged 50 mm-wide cog drive belt. Our proven lineup of ProCharger superchargers features self-contained oiling, so there is no need for external oil lines ...A 406 is a .030 overbore. If your standard bore is good run with it. But if you have to bore and can get away with .010 or .020 do that. 88 monte carlo ss 408 sbc. 84 monte carlo sc 400 sbc. 88 k1500 Cheyenne 400 sbc. 94 k1500 Cheyenne 5.7 L. 8.AFR 195cc SBC Enforcer Cylinder heads feature their Permanent Mold "As-Cast" Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. These budget-friendly heads are perfect for your 350 to 400 cu. in. operating below 6,000 rpm.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 ...It's a beauty! Fauset Racing IMCA SBC 377 383 or 406. You looking for a very reliable IMCA engine good for all tack conditions, weather dry slick or tack track? This is the one for you. This engine delivers smooth power from 5000 RPM to 7500 RPM, and yet will maintain reliability for 35+ nights of hard racing. $7199.00. Includes the following.Now that you said that, I would go with a gen 1 sbc. I am all about the ls engines. They are quiet smooth and dont seem that radical, Compared to a gen 1 sbc at the same horsepower rating. I would do a stroker gen 1 sbc based off a dart shp block. $1200 with all the maching done ready to assemble. 3.85 stroke crank with a 6" rod.The first thing you need to do is decide what kind of power you want to make. You can build a budget 383 stroker for 600 horsepower, but if you want 800 or more, you will need to spend more money. A 383 stroker is probably the best bang for your buck when it comes to making big power on a small budget. The next thing you will need to do is ...Matador is a travel and lifestyle brand redefining travel media with cutting edge adventure stories, photojournalism, and social commentary. WHILE VISITING THE 406-year old Sámi ma...In looking at the BBC thread those LS5 intake and Performer intake all was talking about 5000 to 5500 range. Im more curious as to how the Air Gap vs RPM work on a motor that makes peak power at 5500 to 6000 versus the same motor with a EPS or Performer on it. Just a good solid street motor. 67 chevelle malibu / SS/ custom.406 sbc 400 block 406cid Eldbrok pro flow fuel injection with ecm,harness display for tuners 2.02heads Forged piston 458hp 550lift cam ... My advice is 406 all of the way.....the difference between the 383 and 406 is staggering when the right head is used on a 406.....the bore is much bigger and the actual flow into the cylinder is much better ...

On the other hand, if the small block were really built to make 550 hp, mileage may not be too different. I just had a 406 built that I hope will be around 550hp. I will list the parts below. Keep in mind that I will be really happy with 550 hp. Compare the parts to the 383 posted. 406 10.5:1 compression Victor Jr intake quick fuel 850 carb

The Blueprint Engines horsepower rating between the 383 (430 HP/450 ft/lbs) and 396 (485 HP/500 ft/lbs) small blocks are 55 HP and 50 ft/lbs difference. Since these engines usually dyno a bit more than advertised, for $5995 you'd have a turn-key, real 500 HP/500 ft/lbs small block stroker motor with the 396 that comes with a 30 month/50,000 ...The AFR Emissions Legal (versions from 1969-94 with heat riser, CARB EO #D-250-2), 195cc intake port small block Chevy cylinder heads are available in your choice of straight or L98 angle plug versions. These cylinder heads feature a 65cc or 75cc combustion chamber with a 64cc exhaust port and a 3/4 in. thick head deck (ideal for nitrous or ...I've decided to have a 383 built for my 68 vert. The builder has given me two options at the same price. Option #1. Dart Iron Eagles, 200cc runners, 72cc chambers, flat-top pistons. Option #2. Pro Comp Aluminum Heads, 190 cc runners, 64cc chambers, dished pistons. I'm looking for a streetable "pump gas" engine with compression around 9.5:1.HP/torque=262/454 @3000 rpm. Next on the list is a similar LS3 built up by Crane to showcase their aftermarket cams. LS3 x 3 – Comparing Three Performance Cams on the Engine Dyno - EngineLabs. Note the 500.9 HP version peaks at 6100 rpm with a peak torque of 488 at 4800 rpm. More important to note the torque below 3000rpm, …The BB engines share the same bolt pattern up through 90. As mentioned, for a SB400 or a 383, it will also be necessary to use a 400 balancer. At one time, those were also very common to find at swap meets for $10-25. Below is a comparison of a neutral balance balancer and a 400 balancer.4606 posts · Joined 2008. #3 · Aug 28, 2010. when. i was looking at the 377/400 thing ,, i compared them on Comps simulator ,, until you add alot of port flow ,compression and , alot of cfm in the carb dept ,,, the 377 beats it almost everytime on top , the 406 makes more torque at a lower RPM on the simulator.First Independent AFR 195 Eliminator Dyno Results!! This test was conducted by American Speed in IL who use our 195 CNC street head exclusively on this impressive hydraulic roller 383 package they sell. It is advertised from them at 500 HP and word from the owner (Gail Trent) is that an avergae one makes 505 a "good" one makes 508, and ...

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The main difference between a 406 SBC and a 383 SBC is the size of the engine’s displacement. A 406 has a larger bore and stroke than a 383, resulting in a larger displacement and potentially more power . How to make a 406 SBC? To make a 406 SBC, you’ll need to start with a 400 small block Chevy engine and add a stroker kit that …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 ...Here's some pics of my old setup. So really to build a high-rev small block, need a good flowing set of heads (I was running ported Dart II heads), a solid camshaft can't be beat for high-rpm durability, single plane manifold and matched carb (of course matched valve springs, pushrods, lifters etc).I do a review of the AFR Enforcer SBC head.SBCglobal email is the product of the merger between AT&T and Yahoo!, giving SBC users access to all parts of yahoo.com. SBCglobal email comes with SBC Internet, which is one of th...The Brodix 227 head is probably going to make about the same power as the AFR 220 head. Instead of changing heads, I'd spend the money on a better carb and a better ignition system. If you have an old carb, I'd get the new Holly Ultra 950 for your motor. It might make another 10 to 15 hp more than an old carb, maybe more.Owned a 1972 Nova with a Berger Chevrolet installed L76 327 small block back in the early 70's. Early mods were just 1 3/4" Hooker Super Comp headers, a single plane Offenhauser Port-O-Sonic intake, 780 Holley, and electronic ignition. Street raced many 340, 383, and 440 Mopars back in the day and never lost a race to any of them.if your looking to have a nice cruiser style engine combo, I,ve used this cam in several similar 383-406 SBC engines with very good results, and yes it likes a set of 1.6:1 rockers and I generally install it strait up not 4 degrees advanced it works ok with a stock stall converter but a 2200 rpm stall, converter would be idealSmall Block Engines Ford Engines Power Adder ... 406" Eliminator 520hp Starting at $306/MO with . Shop Now 450HP/460TQ 383" Extreme 450hp Starting at $301/MO with . Shop Now 560HP/560TQ 427" Cobra 560hp Starting at $587/MO with . Shop Now LS Power Adder H-Beam: LS Connecting Rods ... ….

I think it would be a lot more to build a 383 compared to a 396. At least were I'm at, there are the '66-'67 396 blocks everywhere and they all have steel cranks. Building a stroker will cause your wallet to have a stroke. '74 with roller 454, TH400 3K stall and Ferd 9 w/ 4.20s". '68 C-10 Pro-Street "Shop Truck" SWB.S. Scotch. 2510 posts · Joined 2004. #4 · Apr 25, 2011. N/A will require a good 210cc head and a healthy solid roller cam. It's a lot of bang for the buck, but if you're wanting to cut corners and save a few bucks, you won't hit the goal. 500 horses/ft-lbs is not playing around. Although- you can hit those marks without any trick machine work ...-406 sbc (approx. 10:1 cr with 75 cc, AFR 195 and 7 flat top) -auto. transmission 2500 tci stall. -5.7 con. rod -3.75 stroke ... Howard's 110885-10 but, most part told it opted for the lunati for many street use reasons and Lunati suggested this to 383-400. The 110 lsa will probably not produce vacuum enough for my power brake so, i would ...A 406 runs MUCH harder than a 383 for damn near the same dough.... Jebby Reply Like. The following users liked this post: Ron69Az (02-23-2017) 02-23-2017, 09:38 PM ... The Dart block is the small block M. To run the high rise for the HP, I expect I'll need to change the hood to a big block hood. Ron Reply Like 02-25-2017, 09:41 AM ...383 sbc VS. 496 bbc 650 HP. ... The good old argument between SBC vs BBC. Well, I just got done building a 385 (377 .040 over) a 383 is a 377 bored .030. ... Plus you really have to beef up the rest of your drivetrain. Like mentioned above, my 520 HP 406 was an absolute blast to drive and was faster than I ever would need on the street. 69 ...I've decided to have a 383 built for my 68 vert. The builder has given me two options at the same price. Option #1. Dart Iron Eagles, 200cc runners, 72cc chambers, flat-top pistons. Option #2. Pro Comp Aluminum Heads, 190 cc runners, 64cc chambers, dished pistons. I'm looking for a streetable "pump gas" engine with compression around 9.5:1.Other 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 ...The car had a 383 Chevy in it at the time Brandon met first them at the local track, and the engine wasn't running well. "They had a little 383 in it that wasn't running half right, so I built them a 406 small block Chevrolet," he says. "I pulled that motor apart this season just to check everything over and we found out they had ... 406 sbc vs 383, 1977Chad350. 927 posts · Joined 2004. #5 · Sep 2, 2014 (Edited) you can always do fuel injected 400. but the 400 will be cheaper when all put together unless you find a donor ls car or truck. Around where i live you dont find a 5.3 under 300,000 miles, with that many miles your going to need to rebuild., Depending on your combo, if the the cam is short and the engine can truly use more cam duration/lift you will see some gain from both intake and exhaust 1.6 rockers. basically if you have really good intake and exhaust system but cam is a little small then you will see overall increase in the entire power band., In the GM Performance Parts catolog it says "When tested on a 383 ci small block engine with 9.5 to 1 compression ratio and .540" lift roller cam, single plane intake manifold and 750 cfm Holley carburator, the Fast Burn heads produced 497 hp at an incredibly low 5,800 rpm". ... AFR's vs Chevy "fast burn" heads ... rather than 383's or 406's ..., Only on the last few dyno pulls of the day did they run the engine up to its 6,000-rpm redline, where they made just shy of 550 hp at 8 psi boost. Budget Blown 383ci Street SBC testRPMTQHPMax TQ ..., 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., Even though it's from 1,500-6,500 rpm, try to identify where in that spread you'd like the most power. If it's generally below 5,500, select a two-plane. But if it's from 4,000-7,000, you should ..., 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., A 383 with it's smaller bore vs. my 406 should be a bit more detonation resistant. 32* was determined on a chassis dyno. It's very happy on the highway at 2200-2300 RPM. ... In terms of FB385 vs. 383, a 383 will make a little more power (20 to 30 HP) and they have a flatter torque curve. ... A forum community dedicated to 1st generation …, We would like to show you a description here but the site won't allow us., 355 vs 383. Jump to Latest ... Then I threw togather a 406, and then my curent 412. And now I want a 434. It never ends, so you may as well get started. Just remembere this, I have never herd anybody ever say I made the motor to big or makes to much power. ... 412 small block M-20 4spd 4:10 12 bolt Sold, went to Sweden 1957 Thundarbird Gasser ..., The 2015 Chevy Silverado 1500 is a reliable, powerful, and comfortable pickup truck that has been a top choice for drivers for years. The 2015 Chevy Silverado 1500 is powered by a ..., A 4.030 bore 350 block will give you 383 with a 3.75" stroke crank. The SBC 400 has a much larger BBC sized bore of 4.125" so it is bigger and better than the smaller bore motor (it has a bigger crank journal as well as being designed from the ground up for a 3.75" stroke)., The RHS intake is unique in that it is machined for three different small-block intake patterns: the standard 23-degree small-block, the '87-and-later pattern that uses the near-vertical center ..., The minimum acceptable clearance is 0.060 - .080-inch between all moving parts and the block. You can check this with a feeler gauge or welding rod of the appropriate thickness. The reason for using a mirror is to make certain the clearance doesn't close where you can't easily see it or measure it. With this 383 SBC stroker application ..., The heart of this 396 stroker build is the Scat 3.875-inch crank. There is considerably more to the design of a crank than you may at first suspect. For strokes as long as or longer than that of ..., 415 posts · Joined 2003. #8 · Feb 18, 2004. I would go for the 406 anyday. To me, if you can make the same power with a 6,000 rpm 406 and a 7,000 rpm 355, then the 355 is more likely to break bottom end parts due to rpm. Now, if you can afford all the best in bottom end parts, then this may not seem big., Feb 9, 2012 · A 383 has a 400 crank as you know. A 421 needs a stroker crank which costs money. As per Lingenfelters SBC book "why build a 383 when you can build a 406" (,030 over 400) for the same money and get 23+ cu. in. As far as overheating built right with sensible stuff they run great. , 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., 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., As i said before, i'm on a 406 sbc project. I don't know if i need or not a small base circle cam. My interest is on the Hydraulic Roller Voodoo Retro-Fit Lunati 20120711K (60111). It seems to have what i want. Great acceleration, torque and throttle response to have fun stop light to stop light. Cam specs:-RPM Range: 1800 - 6000-Lift: .515"/.530", A 406 runs MUCH harder than a 383 for damn near the same dough.... Jebby Reply Like. The following users liked this post: Ron69Az (02-23-2017) 02-23-2017, 09:38 PM ... The Dart block is the small block M. To run the high rise for the HP, I expect I'll need to change the hood to a big block hood. Ron Reply Like 02-25-2017, 09:41 AM ..., In the GM Performance Parts catolog it says "When tested on a 383 ci small block engine with 9.5 to 1 compression ratio and .540" lift roller cam, single plane intake manifold and 750 cfm Holley carburator, the Fast Burn heads produced 497 hp at an incredibly low 5,800 rpm". ... AFR's vs Chevy "fast burn" heads ... rather than 383's or 406's ..., HP/torque=262/454 @3000 rpm. Next on the list is a similar LS3 built up by Crane to showcase their aftermarket cams. LS3 x 3 – Comparing Three Performance Cams on the Engine Dyno - EngineLabs. Note the 500.9 HP version peaks at 6100 rpm with a peak torque of 488 at 4800 rpm. More important to note the torque below 3000rpm, 238HP & 418ft/pds ..., 383 stroker vs 400 sbc. The only replacement for displacement is rectangular dollars. The 400 was a good engine. Low rpm grunt type. IF you have a 4 bolt main engine, you got the better block. The only steam hole problem came about when guys tried to use fuelie heads on the block to hot rod them. If you drilled the holes in the head, …, As part of the rework on my 406, I've decided to go with a hydraulic roller cam this time instead of the solid roller I was using. specs: 406. 10:1. Dart Pro 1. Performer RPM (new...was using Vic Jr) 1.6 roller rockers on intake. 1.5 roller rockers on exhaust., A 406 cubic inch small block is one of the most popular choices for Chevy powered sportsman drag racers seeking strong reliable power at reasonable cost. Careful planning and the right mix of parts can push the power close to 700 HP without exotic or costly components. Variations include the option to take the motor to 415ci, 421ci or even 434 cubic inches if so desired..., SBC CHEVY 350 383 406 NKB-200cc ALUMINUM HEADS 68cc STRAIGHT PLUG NKB-272-PBM. Available $849.00. Add to cart. SBC HEAD STUD KIT FOR ALUM OR IRON HEADS SBC HEAD STUDS # 1525-Stud/ 279.1001. Call Us Add to cart. SBC CHEVY 350 383 406 NKB-200cc ALUMINUM HEADS 64cc ANGLE PLUG NKB-274-A., The 383 Stroker engine is fitted primarily to boost a vehicle's thrust force. A 383 Stroker has a 0.030 bore width expansion over the basic 350, with a 4.00 bore. Installing a 400 crank in a stock 350 raises the stroke to 3.750. Every other dimension remains the same. And doing the math, you get a 382.6 figure; rounding it up gives you 383ci., For this latest adventure, we assembled 19 small block Chevy single-plane intake manifolds and ran them all across a 550hp, 406ci small block Chevy. But that was just the start. We measured carb ..., This 383 stroker small-block Chevy assembled by Mike Consolo at QMP Racing Engines peaked out at just over 500 horsepower and produced 430 lb-ft of torque or more throughout the entire dyno run-all on pump gas and with a respectable idle. "At first it sounds rather sedate but we ended up making really good power with it," says Consolo ..., 383 STROKER Small Block Chevy Tall Valve Covers - Blue. $195.00. 383 STROKER Small Block Chevy Tall Valve Covers - As Cast. $195.00. Chevy Small Block Chevrolet Bowtie Tall Valve Covers (Raised Logo) Black. $195.00. Chevy Small Block Chevrolet Bowtie Logo Tall Valve Covers (Raised Logo) Orange. $195.00., Re: 110 vs. 112 lobe seperarion on a cam 04-21-03 08:50 PM - Post# 209748 In response to BowtieFreak I have a 406 sbc and ran a L82 350-350 GM cam for about 6-7 years. I just changed to a Competition Cam 280 Magnum. the GM cam had a centerline of 114 degrees. The CC cam has a centerline of 110 degrees., The minimum acceptable clearance is 0.060 - .080-inch between all moving parts and the block. You can check this with a feeler gauge or welding rod of the appropriate thickness. The reason for using a mirror is to make certain the clearance doesn't close where you can't easily see it or measure it. With this 383 SBC stroker application ...