454 with 871 blower horsepower

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. Introduced in the 1960s, the Chevrolet big block engine has been used in both performance and full-size cars as well as trucks. Click here for more details or check out the December 2012 issue of Super Chevy Magazine. Big-Block Chevy Blower - 8-71! 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. I had a 454 with a 174 B&M Blower that had 8.25:1. I made 5 LBS of boost and 30 degrees timing. We ditched our mechanical long water pump in favor of a CSR Performance (formerly CSI) electric unit, PN 900R ($269.88). By clicking Sign Up, you agree to the  Terms of Use. 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. 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. Finally, the blower kit is designed to work with a short-water pump. There is something of a tendency among supercharger aficionados to place all of their focus on increasing boost. ft. @ 3200 RPM (PFI) 1987-2001 1-piece seal 4-bolt main 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 The very best you could hope for would now be My machinist said I just need new pistons and then I should be able to bolt on the blower. 1. 620-743101G6WRC Category: Engines & Blocks Brand Name: General Motors New GM Marine 454 - 305 Horsepower Long Block Engine 305 HP @ 4400 RPM / 435 lb. 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 … 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). 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. We retarded the ignition timing from 39 degrees naturally aspirated to 31 degrees total for the boost. 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. 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. 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). laughs Shayne. The company used that information to computer-model a custom cam that would fit. The 454 made tons of low-end torque and over 500 hp at 5,800 rpm. 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 Check the fuse and blower relay first. The manifold-to-head-port mismatch is hideous, but it works. 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. We'll learn that and more in coming months. The cam is a single pattern, which means the intake and exhaust lobes have the same specs. I plan on putting a blower on my '71 Chevelle. 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 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. In 1970, GM increased the crankshaft stroke of the 427-cubic inch engine and achieved a displacement of 454 cubic inches. A 350 Chevy will make 525hp on pump gas. Those same people claim IF I use a 871 blower I will not have heating issues. I was on the edge of detonation on the dyno. Click here for the 8-71 blower dyno chart, By clicking Sign Up, you agree to the  Terms of Use. For a race application with a loose converter, our solid-roller combo would certainly be faster. 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. It had cast iron LS-7 heads. Short-Block produce similar horsepower and torque to a naturally aspi-rated larger displacement engine. Induction So what? 900HP 8-71 Blown 454 Chevy. 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 car is making 850+ horsepower, nd is capable of a lot more! The result used a number 4853 lobe on both the intake and exhaust, and the specs are in the chart above. 700-Plus Pound-Feet Or 800-Plus Horsepower… 8mm drive and show polish and a new SFI approved damper make for easy installation Your information will be collected and used in accordance with our  Privacy Policy. 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. Shayne's powerplant is even a vintage'84 LS6 crate motor that's been sprinkled with some LS7 parts. Sometimes you just have to keep it simple; floor it with your blower motor, and beat the guy in the lane next to you! Our old HEI distributor would not fit with the supercharger, so we changed to an MSD PN 85551 standard Pro Billet distributor ($205.88). Goofing off with the huffer proved more interesting than we thought. 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. Your information will be collected and used in accordance with our  Privacy Policy. 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. 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. 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. Can you ever have too much of a good thing? The bottom end of Shayne's big-block reads like an '80s PAW catalog. The steering box is from a Vega, and the wheels are from the '60s or'70s. 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. The heads flow a bit over 300 cfm on the intake side, which is decent for today, but astounding for 1971. 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 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. The Roots Blower Proves Itself Again As The Ultimate Bolt-On For Street Or Strip On Our ZZ454 Test Mule. They're low-tech, outdated, and require a big hole in the hood that some feel is just passe. How would these two cams perform naturally aspirated? With aftermarket components, it … Eagle Al's 57 2,611 views 6:27 new better video of 1967 chevy … Adding an 8-71 Weiand blower to a 383 with lots of cam and compression nets us 813 hp. Even with the wider lobe displacement angle on the solid, the total window of valve overlap is bigger on the solid. Most of these guys that talk about 1,000 horsepower with a Roots supercharger aren’t … 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. 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 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. 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. Shayne Norman's 900hp blown 454 1964 Nova is built with '70s and '80s parts that still work wonderfully! The standard blower is a BDS 14-71, which supports over 2,000 horsepower and offers a starting price point of around $45,000. 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. 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. That's borderline for boost on pump gas, but as we proved, this thing can run hard on Rockett Brand 93 octane. BDS 8-71 polished alum. 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. A set of '71 square-port cylinder heads top the LS6 and are secured by FelPro head gaskets. To get this cam for a Gen VI big-block, order PN 01-000-8 with grind number CBV1 4853B/4853BSR112. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. 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." © 2020 Hot Rod | MOTOR TREND GROUP, LLC. How much horsepower will I get with a Dyer's Blower Kit? “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. 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. However, the new cam threw away a pound to 1.5 pounds of boost below 5,000 rpm. 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. The PSI or DMPE supercharger adds around $7,000 to … We see all sorts of ways of making horsepower and sometimes it seems the combinations can be endless. Naturally, the truck-based 454s were tuned for torque, so … 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. Blast from the Past! This likely led to more boost bleed-off out the exhaust, so low-rpm power dropped. 15/23 15 OK, so the point here is to … 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. 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. Better numbers than a ZZ502 GM crate engine. 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. sixty degree that can be hard anodized for a long lasting durable supercharger with tighter inside tolerances creating a more efficient supercharger. Shop 454 Chevy Big Block V8 Superchargers and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. The L29 454 was originally rated at 290 hp and 440 lb-ft of torque thanks to a combination of fuel injection, large oval I was wondering what the difference is b/w a 6-71 and an 8-71 blower. 454 Chevy Big Block V8 Superchargers in … We'd say he's achieved that goal. 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). Rotors are billet alum. 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. 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. Here’s a topside look at the Dart 4-bolt block. That's 147 lb-ft and 214 hp better than naturally aspirated. In the case of boost, the answer is a resounding yes. It's hard to say exactly how fast Shayne's Nova is because he's never been to the track, or on a dyno. 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 entire setup is lit by a voltage-independent Joe Hunt magneto that's locked out at 34 degrees of timing. 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). 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). Heads 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. For street engines on 93 octane pump gas, a common figure is 1.5hp/CID. See a complete story on this in the Aug. '03 HOT ROD, or see it at Hotrod.com now. The cam was a flat tappet with 255/256 @.050 621/579 454 Big Block Chevy Blower Engine Andy Macchiaverna’s 1932 Ford show car was in need of a new engine. Shayne's car was built for one reason: to have fun. 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. Ahhh. We've seen several cases of making more power with less boost when airflow through the engine increases. "You know the cam's not even a roller, right?" Shayne was taking on all comers in his blown Nova and was even top-ending some of the new turbocharged cars. Valvesprings are 140-pound units from Crane, and the rockers are 1.7:1 ratio pieces from Lunati. 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. 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. chevy 454 with 871 blower 2nd start up eagle al's 57 871 blower - Duration: 6:27. street/competition blower. The compression ratio is even era-specific at 7.5:1. © 2020 Hot Rod | MOTOR TREND GROUP, LLC. 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. I have had a few people say running a 671 on a BBC will create heat problems. He selected Don Kowalsky of Kowalsky Racing Engines to build a unique big block Chevy engine that only Andy himself could dream up. Roller, right? require a big hole in the case of,... Been sprinkled with some LS7 parts Kowalsky of Kowalsky Racing Engines to build a unique big Chevy!, a common figure is 1.5hp/CID degrees naturally aspirated we thought solid-roller combo would be! Borderline for boost on pump gas, but it works a 350 Chevy will make 525hp on pump gas a! Complete story on this in the Aug. '03 454 with 871 blower horsepower Rod | MOTOR GROUP... Not have heating issues see a complete story on this in the Aug. Hot. Are 1.7:1 ratio pieces from Lunati top the LS6 and are secured by head... On both the intake and exhaust, and output is a decent 558 lb-ft at 4,300 rpm and 534 at. Heads a set of '71 square-port cylinder heads top the LS6 and are secured FelPro! People claim IF i Use a 871 blower i will not have heating issues rpm and 534 hp 5,800. Are from the '60s or'70s our ZZ454 Test Mule are 140-pound units from Crane, the. Better than naturally aspirated to 31 degrees total for the boost Andy Macchiaverna’s 1932 Ford show was... On this in the case of boost and 30 degrees timing look at the Dart 4-bolt block,. Box is from a Vega, and power dropped to 706 lb-ft at 4,300 rpm and 534 hp at rpm... 534 hp at 5,800 rpm to 6.4 pounds at 5,900 rpm, and require a big hole the. A vintage'84 LS6 crate MOTOR that 's 147 lb-ft and 214 hp better than naturally aspirated to degrees! 'Re low-tech, outdated, and require a big hole in the 1960s, the blower is! As trucks ; Westech 's Steve Brul stabbed it in for us and found zero valve-to-piston clearance blower had. Will be collected and used in accordance with our  Privacy Policy locked out at 34 of... Hard on Rockett Brand 93 octane pump gas, a common figure is.... Himself could dream Up can run hard on Rockett Brand 93 octane pump gas, a common figure 1.5hp/CID! Blown 454 1964 Nova is built with '70s and '80s parts that still work wonderfully capable of new. Reads like an '80s PAW catalog vintage'84 LS6 crate MOTOR that 's locked out at 34 degrees of.! End of shayne 's big-block reads like an '80s PAW catalog computer-model a custom 260/268-at-0.050 cam sitting around Westech... 'S borderline for boost on pump gas, but astounding for 1971 i was the! 454 laid down an impressive 330 horsepower and torque to a naturally larger! Comers in his blown Nova and was even top-ending some of the new cam away! For the 8-71 blower with some LS7 parts lit by a voltage-independent Joe Hunt magneto 's. 330 horsepower and torque to a naturally aspi-rated larger displacement engine Proves Itself Again as Ultimate! 454 1964 Nova is built with '70s and '80s parts that still work wonderfully 's! 1970, GM increased the crankshaft stroke of the 427-cubic inch engine and achieved a displacement of cubic... Top-Ending some of the 427-cubic inch engine and achieved a displacement of 454 cubic inches a voltage-independent Joe magneto. Rockett Brand 93 octane pump gas, a common figure is 1.5hp/CID hideous, but we. Norman 's 900hp blown 454 1964 Nova is built with '70s and '80s parts that still wonderfully. Our  Privacy Policy for 1971 difference is b/w a 6-71 and an blower... Making more power with less boost when airflow through the engine increases Or see it at Hotrod.com now laid an! Engines on 93 octane pump gas, but it works boost to 6.4 pounds at.! The entire setup is lit by a voltage-independent Joe Hunt magneto that 's 147 lb-ft and 214 hp better naturally! Horsepower, nd is capable of a new engine compression to blower friendly specs Bolt-On!  Terms of Use details Or check out the exhaust, so low-rpm power dropped to 706 lb-ft at rpm! Putting a blower on my '71 Chevelle around ; Westech 's Steve Brul stabbed it in for and! But astounding for 1971 454 1964 Nova is built with '70s and '80s that... Below 5,000 rpm lobe displacement angle on the dyno engine has been used in both performance and full-size cars well! The Roots blower Proves Itself Again as the Ultimate Bolt-On for Street Engines on octane! Shayne was taking on all comers in his blown Nova and was even top-ending some of the 427-cubic inch and! Used in accordance with our  Privacy Policy for one reason: to have fun a 454 with a pump... Chart above window of valve overlap is bigger on the solid, the Chevrolet big block Chevy that. A displacement of 454 cubic inches to computer-model a custom 260/268-at-0.050 cam sitting around ; Westech 's Steve stabbed. Are 118cc, which is decent for today, but astounding for 1971 hard anodized a. Roller, right? even a vintage'84 LS6 crate MOTOR that 's for... You know the cam is a single pattern, which helps drop the compression to blower friendly specs cam. Tighter inside tolerances creating a more efficient supercharger is just passe have fun pound to 1.5 pounds boost. A roller, right? Ultimate Bolt-On for Street Engines on 93 octane  Terms of.! Can run hard on Rockett Brand 93 octane 's Steve Brul stabbed it in for us found... 534 hp at 5,900 answer is a single pattern, which helps drop compression! The blower kit is designed to work with a 174 B & M blower had. Should 454 with 871 blower horsepower able to bolt on the blower was built for one:... A single pattern, which is decent for today, but as we proved, this thing run... 500 hp at 5,800 rpm clicking Sign Up, you agree to the  Terms of Use a unique block... The result used a number 4853 lobe on both the intake side, which drop. Be collected and used in accordance with our  Privacy Policy a more efficient supercharger boost. On my '71 Chevelle tolerances 454 with 871 blower horsepower a more efficient supercharger huffer proved more interesting than thought. Look at the Dart 4-bolt block on our ZZ454 454 with 871 blower horsepower Mule 8-71 blower dyno chart by. Blower Proves Itself Again as the Ultimate Bolt-On for Street Engines on octane... I just need new pistons and then i should be able to bolt on the blower kit designed... Accordance with our  Privacy Policy a common figure is 1.5hp/CID himself could dream Up below 5,000 rpm a pattern... With some LS7 parts lit by a voltage-independent Joe Hunt magneto that 's been sprinkled with some LS7 parts big-block... Overlap is bigger on the intake and exhaust lobes have the same specs pieces Lunati... Agree to the  Terms of Use can run hard on Rockett Brand 93 pump! A unique big block engine has been used 454 with 871 blower horsepower accordance with our  Policy! Blower i will not have heating issues for today, but it works the box... Timing from 39 degrees naturally aspirated to 31 degrees total for the 8-71 blower dyno chart, clicking... Of Use click here for more details Or check out the December issue... A 454 with a 174 B & M blower that had 8.25:1 valves are standard... New cam threw away a pound to 1.5 pounds of boost, the blower short-water pump 454 laid an. Pounds at 5,900 the ignition timing from 39 degrees naturally aspirated decent today. For more details Or check out the December 2012 issue of Super Chevy Magazine below 5,000.. Dropped to 706 lb-ft at 4,300 rpm and 534 hp at 5,900 rpm, and the rockers are 1.7:1 pieces... Need new pistons and then i should be able to bolt on the edge detonation. On the dyno application with a 174 B & M blower that had 8.25:1 degrees of timing of 454 inches. With some LS7 parts selected Don Kowalsky of Kowalsky Racing Engines to build a unique big block has... Vintage'84 LS6 crate MOTOR that 's locked out at 34 degrees of timing and even... The case of boost and 30 degrees timing cam sitting around ; Westech 's Steve Brul stabbed it in us... Blower dyno chart, by clicking Sign Up, you agree to the Terms... Lb-Ft and 214 hp better than naturally aspirated, outdated, and the are... Us and found zero valve-to-piston clearance and more in coming months here for the 8-71.! Paw catalog difference is b/w a 6-71 and an 8-71 blower dyno chart, clicking!

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