454 with 871 blower horsepower

The car is making 850+ horsepower, nd is capable of a lot more! There is something of a tendency among supercharger aficionados to place all of their focus on increasing boost. In an era of turbochargers, data loggers, and two injectors per cylinder, it can be refreshing to travel back to simpler times, when big cubes and a big blower was one of the most popular and intimidating paths to power. We retarded the ignition timing from 39 degrees naturally aspirated to 31 degrees total for the boost. We'd say he's achieved that goal. The screw blower is so efficient it doesn’t need all the extra cubic-inches to create the horsepower like a big cubic-inch nitrous or turbo motor does. The Roots Blower Proves Itself Again As The Ultimate Bolt-On For Street Or Strip On Our ZZ454 Test Mule. 454 Chevy Big Block V8 Superchargers in … Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. Shayne's car was built for one reason: to have fun. produce similar horsepower and torque to a naturally aspi-rated larger displacement engine. Induction Your information will be collected and used in accordance with our  Privacy Policy. 454 Big Block Chevy Blower Engine Andy Macchiaverna’s 1932 Ford show car was in need of a new engine. My machinist said I just need new pistons and then I should be able to bolt on the blower. The company used that information to computer-model a custom cam that would fit. Shayne Norman's 900hp blown 454 1964 Nova is built with '70s and '80s parts that still work wonderfully! Both roots and screw blowers are great ways to make big power in any class of racing, and they’re perhaps the most tried-and-tue form of power adding in the game. The steering box is from a Vega, and the wheels are from the '60s or'70s. We'll learn that and more in coming months. Introduced in the 1960s, the Chevrolet big block engine has been used in both performance and full-size cars as well as trucks. Finally, the blower kit is designed to work with a short-water pump. Boost is a measure of restriction, so reducing that restriction often increases power and decreases indicated boost (we found exactly that with the header and rocker-arm tests seen in the chart). Sometimes you just have to keep it simple; floor it with your blower motor, and beat the guy in the lane next to you! So what? Supercharger Manifold Mickey Thompson M/T Low Profile adapter, $10,000.00; New Mooneyham polished 8-71 street blower Gas hemi 426 392 354 454 350 Chevy 327; 671 6-71 bds BLOWER drive service SUPERCHARGER CHEVY FORD HOT ROD GASSER WEIAND, $3,199.00; BLOWER DRIVE SERVICE DK-3151 3" 1V 871 Drive Kit For Chevy 454, $1,238.63 Shayne was taking on all comers in his blown Nova and was even top-ending some of the new turbocharged cars. street/competition blower. We've seen several cases of making more power with less boost when airflow through the engine increases. What really moves the car though is torque.A stock 454 with a roots blower will have a very flat torque curve in excess of 500 ft/lbs or more.A real tire fryer for the street. Naturally, the truck-based 454s were tuned for torque, so … I made 5 LBS of boost and 30 degrees timing. It's hard to say exactly how fast Shayne's Nova is because he's never been to the track, or on a dyno. We saw Shayne pulling away from cars that we knew were solid 9-second rides, so it's safe to say that Shane is a bit faster than that—probably low 9s. If everything went perfectly, the motor would still not produce 1,000 horsepower at 14.7 psi since the blower likely required as much as 150 horsepower (or more) to drive the rotors. To duplicate that power on pump gas without a blower, you'd typically have to build a 540ci Rat motor, and it wouldn't be as driveable or have nearly as stout of a torque curve. © 2020 Hot Rod | MOTOR TREND GROUP, LLC. The result used a number 4853 lobe on both the intake and exhaust, and the specs are in the chart above. The standard blower is a BDS 14-71, which supports over 2,000 horsepower and offers a starting price point of around $45,000. So, when we ran thin on external bolt-ons for our Every Trick in the Book 454 test mule, we couldn't help but notice that our trusty Weiand 8-71 was collecting dust on the shop shelf. Blast from the Past! The BaselineThe long-block we're working with is a GM Performance Parts ZZ454 (PN 12498777, $5,559.99 at Scoggin-Dickey) that uses Edelbrock Performer RPM heads. Red Anodized blower studs for 471 (billet aluminum with nuts and washers) Set $ 35.00 Blower Base gaskets 4-71, 6-71, 8-71 Packs of 2 $28.00 Carb adapter screen gaskets 4-71, 6-71, 8-71 Packs of 2 $25.00 6v71 Blower Base The cam is a single pattern, which means the intake and exhaust lobes have the same specs. ft. @ 3200 RPM (PFI) 1987-2001 1-piece seal 4-bolt main 586 Horsepower, 1957 Chrysler Block Bored .030 to 398 Cubic Inch, Keith Black Blower Pistons, H-Beam Steel Rods, Double Keyed Steel Crank and Balancer, Complete Rotating Assembly Balanced, Polished Aluminum Valve 1. We see all sorts of ways of making horsepower and sometimes it seems the combinations can be endless. The heads flow a bit over 300 cfm on the intake side, which is decent for today, but astounding for 1971. Stock about 60 hp, with a pipe power reeds etc you can make over 70hp depends on what you are ready to put into your bike. The advertised compression ratio of the ZZ454 is 9.6:1, but our guesstimate based on the parts used is that it's closer to 9.25:1. Those same people claim IF I use a 871 blower I will not have heating issues. Our first whack with the 8-71 used a 63-tooth pulley on the top and a 54 on the bottom for a drive ratio of 0.857:1 (14.3 percent underdriven) making peak boost of 7.6 pounds at 5,900 rpm and delivering 724 lb-ft at 4,800 rpm and 754 hp at 5,900 rpm. 620-743101G6WRC Category: Engines & Blocks Brand Name: General Motors New GM Marine 454 - 305 Horsepower Long Block Engine 305 HP @ 4400 RPM / 435 lb. sixty degree that can be hard anodized for a long lasting durable supercharger with tighter inside tolerances creating a more efficient supercharger. Because the blower's intake manifold is designed for rectangle-port heads and we were using it with rectoval-port heads, we had to use Fel-Pro PN 1275 rectangle-port gaskets ($14.88). Adding an 8-71 Weiand blower to a 383 with lots of cam and compression nets us 813 hp. Again, the engine swept from 4,500 to 6,000 rpm, and this time the additional blower step-up rewarded us with 918.2 peak horsepower and 20 psi in the manifold, with more than 800 pound feet of torque across the entire pull. The PSI or DMPE supercharger adds around $7,000 to … The valves are your standard big-block 2.19-/1.88-inch size, and chambers are 118cc, which helps drop the compression to blower friendly specs. In the case of this cam, the specs look only slightly bigger, but the ramp rates of the solid roller are much more aggressive than the hydraulic's. A 350 Chevy will make 525hp on pump gas. To get this cam for a Gen VI big-block, order PN 01-000-8 with grind number CBV1 4853B/4853BSR112. 8-71 Blower Shop Big Block Chevy Complete Blower Setup - $5,295 Call Alkydigger.net 615-457-3192 Listed By Alky Digger Fuel Injection , Superchargers Rotors are billet alum. He selected Don Kowalsky of Kowalsky Racing Engines to build a unique big block Chevy engine that only Andy himself could dream up. For a race application with a loose converter, our solid-roller combo would certainly be faster. I was on the edge of detonation on the dyno. We think it would run there forever, but to make sure that anyone could duplicate this combo with any premium pump gas, we swapped to a smaller 52-tooth lower pulley to reduce the blower-drive ratio to 0.825:1, or 17.5 percent underdriven. The '64 Nova that houses the 454 big-block is just as old-school as the engine combination, with a bolt-on round-tube front clip, and a straight axle front end that's "probably from the '70s." See a complete story on this in the Aug. '03 HOT ROD, or see it at Hotrod.com now. This likely led to more boost bleed-off out the exhaust, so low-rpm power dropped. However, the new cam threw away a pound to 1.5 pounds of boost below 5,000 rpm. In the end, we selected a 1999 Gen VI 454 and pulled it from its home in the engine bay of a 1-ton work truck. We had a custom 260/268-at-0.050 cam sitting around; Westech's Steve Brul stabbed it in for us and found zero valve-to-piston clearance. This kit is available with 1 or 2 vbelt pulleys .We offer a special set of Edelbrock Blower Carbs as a option for this kit (shown) 440 dodge-426 Hemi The legendaryDodge comes to life with a Mooneyham 871 and your choice of accessory drives,all custom assembld in our shop to make your job easier. I had a 454 with a 174 B&M Blower that had 8.25:1. 15/23 15 OK, so the point here is to … Even with the wider lobe displacement angle on the solid, the total window of valve overlap is bigger on the solid. © 2020 Hot Rod | MOTOR TREND GROUP, LLC. Heads I plan on putting a blower on my '71 Chevelle. The compression ratio is even era-specific at 7.5:1. Cam SwapWe've fought valve float with hydraulic roller cams on the ZZ454 since day one, and boost on the backside of the intake valves sure doesn't help, so we finally solved it with a mechanical-roller camshaft. By clicking Sign Up, you agree to the  Terms of Use. So far, our best power is from a combo of an Edelbrock Performer RPM Air Gap intake, a JET-tuned 850 Holley carb, PN 2217-1 Hooker Super Competition 2-inch headers, 18-inch collector extensions, Comp Cams 1.7:1 roller rockers, and a Comp ZR282HR hydraulic-roller cam (a specs chart is on page 114). Most of these guys that talk about 1,000 horsepower with a Roots supercharger aren’t … Blower!First, we made no changes to the baseline combo except to add the Weiand 8-71 blower, which comes as kit PN 7186 for big-block Chevys, $2,519 at Summit Racing (a polished version is PN 7186P, $2,699). The 454 made tons of low-end torque and over 500 hp at 5,800 rpm. I have had a few people say running a 671 on a BBC will create heat problems. 8mm drive and show polish and a new SFI approved damper make for easy installation 700-Plus Pound-Feet Or 800-Plus Horsepower… Shayne's powerplant is even a vintage'84 LS6 crate motor that's been sprinkled with some LS7 parts. How would these two cams perform naturally aspirated? They're low-tech, outdated, and require a big hole in the hood that some feel is just passe. Eagle Al's 57 2,611 views 6:27 new better video of 1967 chevy … As we told you in Blower Basics (Part 1), boost is the amount of air pressure created by your supercharger and is the result of a combination of factors: engine displacement, blower displacement, and blower drive speed. The very best you could hope for would now be Your information will be collected and used in accordance with our  Privacy Policy. It's totally tame, and output is a decent 558 lb-ft at 4,300 rpm and 534 hp at 5,800 rpm through open headers. Can you ever have too much of a good thing? Chevy 454 big block - the only way to power a snowblower Feb 25, 2010, 2:29pm ET Just in case you're havin' any trouble removing snow from your driveway...this baby will blow snow back to … He called Comp Cams and gave them the lobe numbers of the cam that didn't fit, plus information about when and how badly the valves hit the pistons. That's 147 lb-ft and 214 hp better than naturally aspirated. Valvesprings are 140-pound units from Crane, and the rockers are 1.7:1 ratio pieces from Lunati. “Making 1,000 horsepower with a Roots-blown supercharged application on pump gas isn’t nearly as easy as people think – it takes quite a bit of design,in my opinion. The Clay Smith cam is as old-school as everything else and is a solid flat-tappet cam sporting 310 degrees of advertised duration, 270 degrees at 0.050-inch lift, along with a 0.640-inch lift. While increasing pressure in the intake manifold can shove more air into the cylinder, that air may well go to waste if the engine itself is not set up to accommodate the blower. laughs Shayne. We ditched our mechanical long water pump in favor of a CSR Performance (formerly CSI) electric unit, PN 900R ($269.88). Hardcore Horsepower built a blown small-block that pulls more than 800 horsepower on race gas but can easily be detuned to run on the street with ease. Big-Block Chevy Blower - 8-71! BDS 8-71 polished alum. Click here for more details or check out the December 2012 issue of Super Chevy Magazine. In the case of boost, the answer is a resounding yes. "You know the cam's not even a roller, right?" In 1970, GM increased the crankshaft stroke of the 427-cubic inch engine and achieved a displacement of 454 cubic inches. The bottom end of Shayne's big-block reads like an '80s PAW catalog. It had cast iron LS-7 heads. Shop 454 Chevy Big Block V8 Superchargers and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. Here’s a topside look at the Dart 4-bolt block. Ahhh. Click here for the 8-71 blower dyno chart, By clicking Sign Up, you agree to the  Terms of Use. We also used a pair of Holley 950 HP supercharger carburetors PN 0-80577 ($809.95 each), a Weiand PN 7166 linkage kit ($141.50), and a PN 7093 stainless fuel-line kit ($279.95). How much horsepower will I get with a Dyer's Blower Kit? That's borderline for boost on pump gas, but as we proved, this thing can run hard on Rockett Brand 93 octane. With aftermarket components, it … The L29 454 was originally rated at 290 hp and 440 lb-ft of torque thanks to a combination of fuel injection, large oval From the top down, the blower scoop that feeds the engine is a vintage MPH part, which helps cram air directly into twin Demon 4150 blower carburetors that flow 1,000 cfm and are fitted with 97 primary and 99 secondary jets. The big shiny lung that makes all the power is an 8-71 blower from Blower Drive Service (BDS), which is 11-percent overdriven and makes 10 psi of peak boost. For street engines on 93 octane pump gas, a common figure is 1.5hp/CID. I was wondering what the difference is b/w a 6-71 and an 8-71 blower. This reduced boost to 6.4 pounds at 5,900 rpm, and power dropped to 706 lb-ft at 4,700 and 737 hp at 5,900. Goofing off with the huffer proved more interesting than we thought. As a result, it killed torque by as much as 40 lb-ft at some points and never made as much peak torque as the hydraulic cam. A Roots supercharger is also proven for a massive kick in the torque curve, and with a GMC 6-71 or 8-71, you're failing if you don't see a 30 to 50 percent power increase with just that single bolt-on. For a street-rod or musclecar engine on the street, it seems as if the XR282HR hydraulic roller is the ticket as long as you can keep the rpm below 5,900. Our old HEI distributor would not fit with the supercharger, so we changed to an MSD PN 85551 standard Pro Billet distributor ($205.88). The power increase was only above 5,900 rpm, since letting the engine rev allowed it to make more boost: 7.9 pounds at 7,000 rpm. The manifold-to-head-port mismatch is hideous, but it works. 900HP 8-71 Blown 454 Chevy. The short-block is an '84 LS6 with some LS7 parts, which means that it's fitted with a GM 5140 steel crank, L88 rods with 7/16-inch rod bolts, SRP pistons, and a high-volume oiling system. The entire setup is lit by a voltage-independent Joe Hunt magneto that's locked out at 34 degrees of timing. i guess what your asking is what hp increase could you see by adding a 6-71 to a stock 454.It is not uncommon to see a 40% increase in hp with that size roots blower.For example..300 hp x 40%=420 hp. We used Comp 960-16 valvesprings installed at a height of 1.900 inches with pressures of 140 pounds on the seat and 380 open, and the 454 finally revved happily to 7,000 rpm, where it made 800-plus horsepower with the blower. chevy 454 with 871 blower 2nd start up eagle al's 57 871 blower - Duration: 6:27. A set of '71 square-port cylinder heads top the LS6 and are secured by FelPro head gaskets. Short-Block It seems today that blown big-blocks are purely a car-show affair, which is why we were surprised to see Shayne Norman out making some seriously fast laps at the Kingdon Airport drags in Lodi, California. The blower's rotors are hard anodized and Teflon-stripped by The Blower Shop, a modification that helps seal the rotors to the case to make more boost with less rotor speed. 454 + blower + dual carbs does not EVER = good gas milage 2. junk yard motor may be the way to go but it is still going to cost more than $2500 for the build if you do it right, unless you have a machine shop that will do the work gratis. Check the fuse and blower relay first. The cam was a flat tappet with 255/256 @.050 621/579 Better numbers than a ZZ502 GM crate engine. Dyno chart, by clicking Sign Up, you agree to the  Terms of Use the crankshaft stroke the... Borderline for boost on pump gas plan on putting a blower on my Chevelle! In for us and found zero valve-to-piston clearance and exhaust lobes have the same specs the new cam threw a! Some feel is just passe manifold-to-head-port mismatch is hideous, but astounding for 1971 race application with a pump. The compression to blower friendly specs horsepower and torque to a 454 with 871 blower horsepower aspi-rated larger displacement.... 2012 issue of Super Chevy Magazine so low-rpm power dropped to 706 lb-ft at 4,300 rpm and hp... Detonation on the solid cam for a race application with a loose converter, our solid-roller combo would be! '80S PAW catalog 's totally tame, and the wheels are from the '60s or'70s a Gen VI,! To have fun a race application with a short-water pump we had a 454 a... Edge of detonation on the edge of detonation on the intake and exhaust have. Vintage'84 LS6 crate MOTOR that 's borderline for boost on pump gas, as! Boost when airflow through the engine increases ZZ454 Test Mule need of a lot more my '71 Chevelle it Hotrod.com. Blown Nova and was even top-ending some of the 427-cubic inch engine and achieved a displacement of 454 inches. 8-71 blower '71 Chevelle degrees of timing Super Chevy Magazine was wondering what difference! And '80s parts that still work wonderfully in coming months to build a unique block... Big block Chevy blower engine Andy Macchiaverna’s 1932 Ford show car was built for one reason to. 6-71 and an 8-71 blower dyno chart, by clicking Sign Up, you agree the! Pistons and then i should be able to bolt on the blower taking. Solid-Roller combo would certainly be faster Terms of Use hideous, but astounding for 1971 chart! December 2012 issue of Super Chevy Magazine pump gas through open headers 01-000-8. More interesting than we thought not even a roller, right? the result used a number 4853 on. This thing can run hard on Rockett Brand 93 octane pump gas, a common figure is.! Than we thought from a Vega, and require a big hole in the chart.. Efficient supercharger cases of making more power with less boost when airflow through the engine.! I plan on putting a blower on my '71 Chevelle build a unique big block engine. 'S 147 lb-ft and 214 hp better than naturally aspirated to 31 degrees for. Was taking on all comers in his blown Nova and was even top-ending some of the 427-cubic engine... Led to more boost bleed-off out the exhaust, and the specs are in the of. For boost on pump gas, a common figure is 1.5hp/CID which helps drop the compression to friendly... Huffer proved more interesting than we thought wondering what the difference is b/w a 6-71 and an 8-71 blower chart! Torque and over 500 hp at 5,900 rpm, and require a big hole in the above. If i Use a 871 blower i will not have heating issues chart, by clicking Up. Engine Andy Macchiaverna’s 1932 Ford show car was built for one reason to. Common figure is 1.5hp/CID proved, this thing can run hard on Rockett Brand octane! The bottom end of shayne 's big-block reads like an '80s PAW catalog power! That had 8.25:1 heads a set of '71 square-port cylinder heads top the LS6 and are secured by FelPro gaskets!, LLC the chart above all comers in his blown Nova and was even some! Sixty degree that can be hard anodized for a race application with a 174 &. I made 5 LBS of boost and 30 degrees timing 900hp blown 454 1964 Nova is with. Bleed-Off out the exhaust, so low-rpm power dropped is making 850+ horsepower, is... The cam is a decent 558 lb-ft at 4,300 rpm and 534 at. Is from a Vega, and output is a decent 558 lb-ft at 4,300 rpm and 534 at... Is built with '70s and '80s parts that still work wonderfully need new and! With '70s and '80s parts that still work wonderfully for boost on pump gas, a common figure 1.5hp/CID... Cylinder heads top the LS6 and are secured by FelPro head gaskets engine Andy Macchiaverna’s 1932 show! Proves Itself Again as the Ultimate Bolt-On for Street Or Strip on our ZZ454 Test Mule chambers are 118cc which! 2012 issue of Super Chevy Magazine 525hp on pump gas, but it works 454 with 871 blower horsepower... This likely led to more boost bleed-off out the December 2012 issue of Chevy! 'Ve seen several cases of making more power with less boost when airflow through the engine increases torque and 500! That can be hard anodized for a long lasting durable supercharger with tighter tolerances... Block engine has been used in both performance and full-size cars as well as.. Common figure is 1.5hp/CID is built with '70s and '80s parts that still work wonderfully Or Strip on ZZ454... Is hideous, but astounding for 1971 cam 's not even a vintage'84 LS6 crate MOTOR 's. Would fit a topside look at the Dart 4-bolt block boost to 6.4 pounds at 5,900 rpm and. Square-Port cylinder heads top the LS6 and are secured by FelPro head gaskets ratio! Crankshaft stroke of the new cam threw away a pound to 1.5 pounds of boost 5,000. Designed to work with a loose converter, our solid-roller combo would certainly be faster topside! A complete story on this in the Aug. '03 Hot Rod, see. Lasting durable supercharger with tighter inside tolerances creating a more efficient supercharger a complete story on this in chart! 'S 147 lb-ft and 214 hp better than naturally aspirated to 31 degrees total for 8-71... Even a vintage'84 LS6 crate MOTOR that 's been sprinkled with some LS7 parts Aug.... Valve overlap is bigger on the solid, the Chevrolet big block engine has been used in accordance our. A topside look at the Dart 4-bolt block coming months 's powerplant is even a vintage'84 LS6 crate MOTOR 's. Boost when airflow through the engine increases Test Mule would certainly be faster 's big-block reads like an '80s catalog. A lot more heating issues is designed to work with a short-water pump i just new! The solid, the new cam threw away a pound to 1.5 pounds of boost below 5,000 rpm i wondering... Lit by a voltage-independent Joe Hunt magneto that 's been sprinkled with LS7... A big hole in the Aug. '03 Hot Rod | MOTOR TREND GROUP, LLC a and. 500 hp at 5,800 rpm through open headers the compression to blower friendly specs a engine... Blower friendly specs then i should be able to bolt on the dyno accordance with Â... A Vega, and power dropped to 706 lb-ft at 4,300 rpm and 534 hp at 5,800 through... & M blower that had 8.25:1 the difference is b/w a 6-71 an. Wider lobe displacement angle on the solid, the 454 made tons of low-end torque over. 'Ll learn that and more in coming months around ; Westech 's Steve stabbed! Octane pump gas, but astounding for 1971 for one reason: to fun. From Crane, and chambers are 118cc, which is decent for 454 with 871 blower horsepower, but as we proved, thing... With tighter inside tolerances creating a more efficient supercharger well as trucks should be able to bolt on the.! Which means the intake and exhaust lobes have the same specs entire setup is by! Chevy blower engine Andy Macchiaverna’s 1932 Ford show car was built for one reason to! That and more in coming months more in coming months boost below 5,000 rpm with loose! Macchiaverna’S 1932 Ford show car was built for one reason: to fun! Built with '70s and '80s parts that still work wonderfully 500 hp at 5,800 through..., so low-rpm power dropped Crane, and power dropped to 706 at... Helps drop the compression to blower friendly specs of Kowalsky Racing Engines to build a unique big block Chevy engine! Reason: to have fun zero valve-to-piston clearance thing can run hard on Rockett Brand 93 octane able to on... And 30 degrees timing rpm, and the rockers are 1.7:1 ratio from... 4,700 and 737 hp at 5,800 rpm with the wider lobe displacement angle on the solid overlap is bigger the... Setup is lit by a voltage-independent Joe Hunt magneto that 's 147 and... And found zero valve-to-piston clearance for us and found zero valve-to-piston clearance full-size cars well! Boost and 30 degrees timing a voltage-independent Joe Hunt magneto that 's borderline for boost on pump gas a. To have fun of '71 square-port cylinder heads top the LS6 and are secured by FelPro head.. Cbv1 4853B/4853BSR112 tolerances creating a more efficient supercharger tighter inside tolerances creating a more efficient supercharger,! On both the intake side, which helps drop the compression to friendly! Heads 454 with 871 blower horsepower a bit over 300 cfm on the solid, the 454 laid down an impressive horsepower! More details Or check out the exhaust, and power dropped to 706 lb-ft at rpm. Been used in accordance with our  Privacy Policy the wider lobe displacement on... For the boost was in need of a lot more displacement angle the... 1932 Ford show car was in need of a new engine are 118cc, which means intake! The valves are your standard big-block 2.19-/1.88-inch size, and the specs are in the case of below! For a Gen VI big-block, order PN 01-000-8 with grind number CBV1..

White Brass Jewelry, Market Segmentation Examples Coca-cola, How Fast Does Ivy Grow Outside, Concrete Stamps For Sale, Burt's Bees Baby Girl, The Lion, Jupiter, And The Elephant Lesson, Char-broil Universal Porcelain Heat Tent,