406 sbc vs 383

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

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 ...Apr 7, 2011 · Normal machine work on a GM 4 bolt block. This combo ran with reduced timing on premium on the street, and was fed 50/50 with race gas for the track. The first time out it ran 12.1 @ 112 at my local 2200' elevation track with 3.42 gears/5xxx stall. I later whittled the times down to 10.96 @ 121.6 at a sea level track. 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 Chevy ...If I was building a 406 I would step up to the SHP PRO block for an extra 300.00 you get 4 bolt billet caps from front to rear BBC cam tunnel and with a set of the Scat procomp rods with the 7/16 bolt or the callies rods, oliver, lunati pro mod, crower ETC. have enough cam clearance on a roller cam with a 1.140 base circle cam.ideally, people should dyno an engine well past peak hp, so they can check average hp in different ranges. pick the best range, and go with that. if the average is better from 7800-9300 vs. 7200-8700, you will go with stall speed at 7800 and shift at 9300. a range of about 1200 rpm is minimum, maybe 1500rpm wide at the max.I have a 383 stroker 450 HP with a holley 750 carb and would like to know the right RPM's at idle speed, Thank's ... 406, 10:1, comp xr282HR, Dart Iron Eagle 200cc, Holley Contender dual plane, Holley 750 DP ... A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Come join the discussion about performance, builds ...

Henderson Power Sports tops 600 hp with a 406-cube pump-gas hydraulic-roller Chevy 400 small-block. News. Reviews. Buyer's Guide ... 406 Chevrolet Small-Block. Bore: 4.155 inches. Stroke: 3.750 ...My car is currently set up for a sbc. I realize the cost will be about $1,500 - $2,000 more if I go with the 454. I have a list of all the parts I need to convert to a bbc (frame mounts, headers etc...). Both engines will be build to about 450HP, however the 383 will have a little less tq @450. I just want a nice street motor, not looking to race.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.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).SBC CHEVY 350 383 406 NKB-200cc ALUMINUM HEADS 68cc STRAIGHT PLUG NKB-272-PBM. Available $849.00. Add to cart. SBC CHEVY 350 383 406 NKB-200cc ALUMINUM HEADS 64cc ANGLE PLUG NKB-274-A. Call Us Add to cart. SBC CHEVY 400 406 NKB-200cc ALUMINUM HEADS STEAM HOLES 64cc STR. PLUG NKB-272-SH

383 - 400 - 406 Small Block Chevy Shortblock Price; Motown block ... Small block option package -$1,250 Includes the following components: ... ATI SB Chevy 7-inch balancer and Pioneer Hd 168-tooth add$450.00: 383 LS Short Block Price; New General Motors cast iron block CURRENTLY IN STOCK Ohio Crankshaft 4340 4.00 stroke LS crankshaft Ohio Crank ...The specs are: .539/.548-inch lift with 1.6-ratio rocker arms. 234/238-degrees duration at .050-inch lift. 296/300 degrees total duration. 112-degree lobe separation. With the 383, we wanted a solid timing chain that was beefier than the stock setup, and one name immediately came to mind: Cloyes.my experience with sbc vs bbc. when mildly modified, if you have say a 400" sbc (406-434) and a 400" bbc (396-427) If both engines make the same amount of hp, say a 500 hp 434 sbc and a 500 hp 427, the small block will build more torque than the big block. that contradicts most all beliefs about sbc vs bbc.One benefit of the 6.0 rod is a lighter bobweight and potentially easier balancing. Some will mention less side loading on the cyl wall also. I chose 5.7 for my 383 - something about the oil ring through the pin bore I was uncomfortable with, though I realize it's not really an issue.

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Cubic inches win. Both the 383 and the 400 share the same stroke length. The 400 has the advantage of a bigger bore size (more cubic inches) and better breathing through less cylinder wall shrouding of the intake valve. If you allready have a 350 block and want to save some money, build a 383. If you want even more performace, buy a 400 block ...Those are the pros. The cons are you lose a LOT of torque in the mid-range and HP right across the useable RPM scale the wider the LSA. Consider this: Joe Sherman built a 383 for Chevy Rumble magazine some time back that made an incredible 540 HP and 523 ft/lbs torque using ported RHS Vortec heads with 1.94/1.50 valves. The cam was a 236° hyd ...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).My last 406 had the Victor Jr., 950 carb, and a 3500 stall. It was super responsive and drove everywhere on the street. The new 383 has the Performer RPM, 850 Quickfuel carb, and a 4100 converter. It is very responsive as well and running AFR 195's on this one, last one had the AFR 210's. 72 Nova 383.383, 5.7" or 6.0" rods? Jump to Latest Follow 26K views 22 replies 10 participants last post by CNC BLOCKS NE Jan 17, 2008. R. randywr Discussion starter 20 posts · Joined 2008 Add to quote; Only show this user #1 · Jan 15, 2008. Hey guys. I am currently doing a 383 build and have questions on which is the best way to go about it. ...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 ...

Aug 17, 2566 BE ... edsmith Various Playlists on the channel: Flathead V-12 Series https://youtube.com/playlist?list=PL2kqZl8PBGM-Vb_2GoPTdIQUCVnd3-dbm Daimler ...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 includes a ...But with a 2.30ish final drive and 28 tires, it is doable. Especially with a 600cfm vac, and with a light foot. 20 is more than doable. Next year I will be switching to a set of shafts, some more efficient cylinder heads with a fuel an electronic fuel injection kit. Engine is a 383 sbc.As for the 383, it was pretty tame compared to some of our builds in the past; however, it still generated 491 hp and 489 lb-ft and featured plenty of idle vacuum at 14 …The V8 engine is a variation of the in-line four and has eight cylinders. A 355 stroker is a type of V8 engine that has been stroked to have an extra 3/16 inch in length. This increases the displacement from 355 cubic inches to 383 cubic inches, which results in more horsepower. A 383 stroker is a type of V8 engine that has been stroked to have ...Jan 4, 2566 BE ... The rider is not limited to his or her likeness, location, or personal identity. Dyno Testing a 2x4 Tunnel Ram 406" SBC - Insane Torque Curve.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 ...383 sbc afr 210 heads solid roller pump gas at around 11.2 to 1 manual trans 325 drag radial with max trax bars 4.33 gears prosystems carb approx weight is 3500 my nova is a 325 lsx(lm7) stock with a cam and spring change twin 70 turbos holley efi 9.5:1 compression e85 4.86 gears 31x10.5 tire th400 trans with transbrake 3200 stall approx weight ...Using stock 5.7-inch rods in a 383 requires grinding the leading edge of the rod near the bolt on rods 1, 2, 5, and 6. One way to help with this clearance to use a new rod bolt from ARP (PN 134 ...my experience with sbc vs bbc. when mildly modified, if you have say a 400" sbc (406-434) and a 400" bbc (396-427) If both engines make the same amount of hp, say a 500 hp 434 sbc and a 500 hp 427, the small block will build more torque than the big block. that contradicts most all beliefs about sbc vs bbc.

Keep the 383. That is a good combo with the tranny and 12 bolt. Lots you can do. Search the performance forum. 500 horsepower from a 383 will be alot of fun in a street chevelle. Thats a basic build. 67 chevelle malibu / SS/ custom. Currently undergoing a metal work to remove all rust, if I ever get there.

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 ...A 350, 355, 383, or a 400. Should I build a high reving 355. I saw a article about a 400 bored over, 327 or 350 rods, and custom pistons that made above 400 hp & torque on the dyno. Or, should I go for cubic inches and build the 400 small block, with the ever popular controversy of the over-heating problem.We would like to show you a description here but the site won't allow us.Just look at the heads on a big block compared to the small block. 3) if there is any bit of core shift, you WILL grind thru to the water jacket on a 396. 4) more parts options with a 383 (especially pistons). So, the verdict for me was: to go with a fully forged 383 with a good package. Aim for optimum cam and heads.494 posts · Joined 2008. #1 · Nov 1, 2008. a buddy of mine is starting on a 383 for a street strip car and we are looking at different heads available. engine will be a 383 " 6 inch rod engine zero deck ft piston. solid roller around 260/ 264 @.050 with 660/630 lift. and heads we are thinking about are afr 195 and 210 eliminators. my Qs.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.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 …The engine would run better with 6.00/6.20 gears in the 1/8mi. i would say that a 388"er might run 1 tenth better with this much weight, however a 406" junkyard motor, with brodix heads and 6.20 gears i ran 6.26 in the same car. I run an electric shift PG with a 5500 stall and pro brake, but the 406"er broke a rod bolt, so in went the 377" motor.

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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.I've put a lotta high-tech cutting edge folks to shame with old Chevy-made low end leftovers with some creative new technology integrated into the package. In this 383, the stock heads will not feed the engine to 7000 rpms, maybe 5500 though...and what a glorious pull that will be! ... Vs 383 (any cam) wide ratio and 4.56 gears. ... 406 CI * CC ...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.Currently with a Small Block Chevy 350 all stock except Edelbrock Performer RPM Intake Manifold, a Holley 4160/1850-3 600cfm and HEI distributor with new plugs and wires. ... Your carb is fine for cruising, but is going to give up a bunch a well built 350, let alone a 383 or 406. A low rpm torque monster is going to be a different build than a ...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 ...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.Re: Lobe separations on 383-406 cids.104-106-108-110? Post by trmnatr » Sun Dec 07, 2008 3:45 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 is ...Take care of these issues and a 406 will run just as well as a 383, but when you stomp the gas pedal you will feel the extra cubic inches the 406 has. 400 Pro s No if and or buts there is NO replacement for displacement: 350, .30 over, 3.75 stroke = 383 CI. 400, .30 over, 3.75 stroke = 406 CI. It cost about the same to build a 406 or 383.4 Jaw Chuck. 9699 posts · Joined 2002. #2 · Mar 31, 2016. 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 is easy to achieve, everyone offers a crate in those HP ranges.Sherman's 667hp 408 has a roller camshaft which delivers over 0.700-inch valve lift with 1.6 ratio Jesel shaft-mounted roller rocker arms. It was ground with a 270/280 split duration and features ...Most SBC's run very good with around 34-36* total ignition timing at WOT --- usually 20-22 degrees mechanical advance + base timing set at around 12-14*. If you have a very lumpy cam and want to smooth it out just weld up the slots so you get only 14-16* mechanical advance available - then set your base timing at 20* so you still have 34-36* at ... ….

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.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, and the ...The longer rod gives more duration at tdc and yes you can run higher comp on them if I rember right. yes you have to use special pistons, it allows you to rev higher but I think if any thing it hurts torque. My machinest said more often than not people like the 5.7's more. I guess its up to your conditions though.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 ...vinniekq2. a 383 is only 18 cubes more than a 355,yet a lot of people think its a magic motor? Long stroke engines have a higher piston speed than short stroke motors.If you build a 393 stroker you would likely make more power than the 396 stroker,because of what Valkyrie says about bore size and head flow.Tybee Island, Ga., is the closest beach to Chattanooga, Tenn., at a distance of just over 383 miles. Hilton Head Island, S.C. is a close second at 398 miles. Panama City is the clo...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 ... Engine 3: Torque 400s 383ci. 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. Racer. Thread Starter. Member Since: May 2008. Location: Wheaton, Illinois. Posts: 318. Likes: 0. Received 0 Likes on 0 Posts. 383 vs 406. I have a lead on a 350 4 bolt and a 406 2 bolt. I want the hp to be around 425 hp as a starting point for both engines. I know the 406 will probably have more torque than the 383, how much, I don't know.Dec 11, 2007 · A good block is still weaker in the webbing than a 350. (not as much material) 4 bolts are weaker than 2 bolts. Pros- Your not racing it, it uses the same accessories as 350 except the flywheel and balancer, to the average joe you might pull it off as a 350. Cons- Has a bad rod ratio (1.48:1). 406 sbc vs 383, In 1955, GM debuted the small-block Chevy with a 265ci engine and kept up its success until 1999. During those 44 years, there were numerous versions of this classic motor. ... The 383 Stroker combines a 350 Chevy small block with a 400 crank to create an engine with larger displacement than either one alone could offer. The result is a ..., my experience with sbc vs bbc. when mildly modified, if you have say a 400" sbc (406-434) and a 400" bbc (396-427) If both engines make the same amount of hp, say a 500 hp 434 sbc and a 500 hp 427, the small block will build more torque than the big block. that contradicts most all beliefs about sbc vs bbc., Infamous™;70215267 said: General rule is that Fred White next door is good to deal with. Had them machine a jaguar head is all I know first hand. Skip is known for cheap stuff on ebay and has lots of negative stories. They're related but they are 2 different fella's. But Skip has a 99.5% rating on Ebay. Like., The 396 SBC stroker is rather in-depth to build, it requires more carefully checked clearance and clearance grinding on the block, definitely needs a stroker clearance connecting rod, is best built on the later roller block due to block clearancing concerns, and should have a special small journal rod journal crank and connecting rod just to ..., 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. , Eagle 383 kit KB -7cc forged pistons RPM air gapintake dart iron eagle 215 cc heads holley 670cfm carb . Save Share. ... swapping the short block of a 385" SBC with a E110421 296° Erson hydraulic flat tappet to a 406" SBC with a 12-430-8 280° Comp hydraulic roller gained me 4 tenths and 5 mph in the quarter mile. I'm sure 21 extra cubes ..., Camshaft, Hydraulic Flat Tappet, Advertised Duration 305/305, Lift .525/.525, Chevy, Small Block, Each. Part Number: CCA-12-214-4. 5.0 out of 5 stars. Estimated Ship Date: Today. Free Shipping...Loading Estimated Ship Date: Today. Free Shipping; COMP Cams Magnum Hydraulic Roller Camshafts 09-430-8., The L98's 18-inch intake runners were tuned for producing maximum power at lower rpm, yielding as much as 250 hp and a whopping 340 lb-ft in the '90 and '91 models. But while the tuned runners ..., 406 Chevy 10.4 compression AFR 210 heads 258-266 and .640-.630 on a 110 3380 lb. Camaro 3.70 gears 830 cfm carb victor jr. My thoughts on the "super" was that it was just taller and that a spacer on the victor jr. would achieve the same results. On the other hand afr suggests that the "super" is a new superior design and the "jr" is 30 year old ..., I was looking at "How to Build Big Inch Small Blocks" and they built a 406 sbc with vortec heads and a lunati cam. The specs were 9.5 comp. ratio, air gap rpm intake, holley 750, 230/230 @ 50 and .455/.455 lift. cam and nothing else fancy. The engine made 427hp @5100 and 525 ft lbs @3700 rpm. This cam might not sound like you want it though., Just based upon your initial post you've stated you have a 350 that runs perfectly fine. There's a 400 out there that you may not know a lot about until you bust it down. A 383 option has been thrown out there and you say you are on a TIGHT budget. That being said, I'd stick with the 350., Apr 7, 2011 · Normal machine work on a GM 4 bolt block. This combo ran with reduced timing on premium on the street, and was fed 50/50 with race gas for the track. The first time out it ran 12.1 @ 112 at my local 2200' elevation track with 3.42 gears/5xxx stall. I later whittled the times down to 10.96 @ 121.6 at a sea level track. , The only problem i have with the 400 is the block. They came in heavy vehicles and got worked hard from day one. I was to build one for my 4x4. i went thru 6, yes 6, 400 blocks before i gave up and went to a 383. the main decks cracked all to hell when the torqueplate was put on. For your sanity, build a 383 or build the 406 with an aftermarket ..., 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 ..., 4 Jaw Chuck. 9699 posts · Joined 2002. #2 · Mar 31, 2016. 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 is easy to achieve, everyone offers a crate in those HP ranges., 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 ..., Re: 400 sbc VS. 350/383/396 (dtorc4) How the 400 sbc could end up being so misunderstood by Chevy lovers is a mystery that's sure not to be answered soon. Perhaps it is because some enthusiasts wrongly built them while ignoring the differences from the 350; steam holes, external vs internal balance (aftermarket has complete availability of ..., sbc chevy ati super damper, sfi rated, internal balance, 7.074" for sbc chevy 350, 383, 406, 427, 434 engines. PART # 917780 *** IMPORTANT NOTE *** You may add items into your shopping cart but in order to check out you will have to call us., 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., A good block is still weaker in the webbing than a 350. (not as much material) 4 bolts are weaker than 2 bolts. Pros- Your not racing it, it uses the same accessories as 350 except the flywheel and balancer, to the average joe you might pull it off as a 350. Cons- Has a bad rod ratio (1.48:1)., The longer rod gives more duration at tdc and yes you can run higher comp on them if I rember right. yes you have to use special pistons, it allows you to rev higher but I think if any thing it hurts torque. My machinest said more often than not people like the 5.7's more. I guess its up to your conditions though., The 400's 3.75-inch stroke gave a .030-over 350 some 383 cubes and, when done right, delivered satisfying results. ... For strokes as long as or longer than that of the 400 small-block (3.75 ..., Eagle 383 kit KB -7cc forged pistons RPM air gapintake dart iron eagle 215 cc heads holley 670cfm carb . Save Share. ... swapping the short block of a 385" SBC with a E110421 296° Erson hydraulic flat tappet to a 406" SBC with a 12-430-8 280° Comp hydraulic roller gained me 4 tenths and 5 mph in the quarter mile. I'm sure 21 extra cubes ..., One thing you might want to consider, go with a 406. This uses the long stroke(3.75"), but big bore! It is a killer! :D You can stay with the tpi, and make more torque and hp than the 383. Check out corkvette, and you will get my point! :cheers: By the way, 355 vs 383 with all else being equal, the 355 will rev quicker than the 383., Re: Super Victor vs RPM Airgap Dyno results SBC. by bigcam406 » Sat Apr 09, 2011 3:59 am. i recently saw a manifold shootout article where the air gap rpm beat the majority of single planes tested in average torque and horsepower.the small block used was a 383,brodix ik200 heads,roller cam,pump gas deal.the test range was from 3-7 grand., 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., 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 ..., Would there be any considerable reliability differences between the 383 and the 406 small block motors of today. I'm talking the most the most common configurations. ... The money you put into a 406, you could probably build a stronger 383, just because of parts. My 383 is suppose to put out in the high 400s. I had the motor in a K5 project ..., Jun 17, 2563 BE ... 406" SBC Dyno Testing - (tuning tips). That ... $165 Amazon SBC Head vs Budget AFR Enforcer! ... OR 1970 LT1 350 REALLY MAKE? WAS IT FAUX HP ..., HOW TO VIDEO LINKS:How to Gap Piston Rings - https://youtu.be/YaVu8FiUhLQHow to Check PTV Clearance - https://youtu.be/blKm2ODrQZ4How to Measure Bearing Clea..., That's 40% of the Russian embassy, in response to Sergei Skripal's poisoning. Prime minister Theresa May gave 23 Russian diplomats a week to leave the UK today. All of them, she sa..., Jul 19, 2563 BE ... In this video we tear down a 350 Small Block Chevy to perform cleaning & bore the cylinders .030" over. The block is torque plate honed ..., 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.