454 headers vs manifolds. There is no need to purchase additional custom pipes.

454 headers vs manifolds Thread starter rastiss; Start date Jul 9, 2014; rastiss Bronco Guru. To explain, we can take a V8 engine. However, here are some general hey guys in the process of rebuilding the stock pontiac 350,i was wondering would i be better off installing headers or stick with the stock manifolds. While looks are, of course, subjective, headers are usually the winner in the visual horsepower department. 112 posts · Joined 2011 Add to quote; Only show this user #1 · Aug 21, 2012. Get the FPA's and also opt for the coating. Otherwise, the power gains will be minimal at best. As others have mentioned, they will fail and fall apartespecially Exhaust manifolds and headers do the exact same job. S. Built Ram tough with Chevy stuff. The Samsung Galaxy Ring 0 members. Subcategory. manifolds. Recommended Communities. 353. The BB manifolds have 2 1/2in outlets and a 2 1/2in exhaust system is typically what is used with BB engines. 2000flair. Back then the engine was an almost stock 454 with just a slightly bigger hydraulic cam, torker II intake and Holley 750 carb. It's an all motor build, aggressive cam, MSD Intake Manifold and PRC 285cc LS Manifolds vs Headers: A Comprehensive Comparison Read More. Home. Truck 454 Chevy Big Block V8 Headers and Exhaust Manifolds parts in-stock with same-day shipping. Call 800. What if any performance changes will I see with this investment alone? There are plans for a cam down the road. Headers and manifolds have a distinctly different sound, but the way they affect the tone at your tailpipe will depend on the engine and the rest of the exhaust system like muffler sizing, etc. Unfortunately he never was able to finish putting From folks I've met on our travels with the 460 engine and have installed headers, they claim it really wakes up the 460 and lets it runs cooler. Part. From the material, exhaust headers are made of lighter, thinner steel, while exhaust manifolds are made of thick iron. 7K views 7 replies 6 participants last post by Jim Weeks Jun 5, 2002. headers. Took the factory Gen 6 intake off and went to install my low, LS-6 intake. 5" dual exhaust and mufflers. So cast-iron big-block manifolds are not much in demand except for restorations and most applications are covered by replacements from Headers VS Exhaust Manifolds - What's the difference? 🤔⁠⁠Make sure to let us know what else you'd like us to answer in the comments!⁠⁠🇺🇸American made Head A buddy of mine has a 69 SS 396 with a 454 HO and cast iron manifolds. Jegs & Summit still had Banks headers in their inventory, so I bought a set of the Headers vs oem manifolds; Options. Worth the upgrade cost on NA? - We recently built a LSX based 454 to replace my 6L LS2. . Chevelles Forum 139K members. The Short And Long Of It. Y. Wichita falls, Texas. Headers - Exhaust Dyno Blast! My "new" motor was dynoed with long tube headers and with MacJacks shorties which have the outward geometry of the manifolds. I can now cook the tires from a In one of the magazines that my memory can't recall, there was actual dyno results from a mild big block Chevy with factory exhaust manifolds and then swapping them for a set On a mild 396 or 427, probably not much loss, on a potent 454, probably giving up plenty. 437/449 . This makes them more acceptable to emissions standards. Peak HP improved with the long tube headers from 496 HP to 511 HP. Whether on or off the track, exhaust headers provide more horsepower and improved exhaust sound. 4L / 454 ) Items Per Page: Sort By: Hedman Hedders Standard-Duty Uncoated Headers. Headers. 90@113 MPH My 1964 Big Block Corvette Gasser. Theres a guy on here with a vega with a bbf 460 and he used bbc headers with a lttle work to get them to work. 979. Extreme Duty Hi-Performance Exhaust Manifold While checking out some old exhaust parts, Nick and Liam discuss the reasons why tubular headers have replaced cast exhaust manifolds as standard equipment o The structural differences between exhaust headers and manifolds are the material and size. Fel-Pro Performance Exhaust Header Gasket Sets 1412 Exhaust Gaskets, Header, Steel Core Laminate, Round Large Port, Header Vs exhaust manifolds. Jump to Latest armyadarkness 454 Replies. 8. Learn. Headers boost horsepower and torque. H. FLASHARK offers many products to help you create your own custom engine headers. Has anybody had experience with changing to headers from a "standard type" exhaust manifold. The headers are worth 15-20 hp, besides the fact that they are good headers (Hooker Super Comp). Headers will make a big difference. The extra $$$ spent upfront will pay in the long run. Hooker makes a high-flow exhaust manifold that packages tightly in swap applications. Fourwheeler. Years ago a guy in Sweden built a 454 LS6 exactly to org GM spec with, as I remember, the low alu LS6 intake manifold. 416/437 . Car Craft Aug 99. Filter by Availability Filter Results Filter by Vehicle Individual Parts. I'm currently using the stock 454 exhaust manifolds but looking for an upgrade. C6 Tech/Performance - LSX 454 Headers: 1 3/4" vs 2". 454/4-speed overdrive swap into '85 Dodge Ram. 421/433 . Upgrading to headers is a top choice for your C5 Corvette. LS1GTO Forums 77K members. Joined: Sep 2000. Major improvement across the RPM range, off idle all the way up. Hotter? It's for a 427 425hp 66 coupe with a 4:11 rear, The motor should be rated around 370hp and over 400 foot pounds of torq. The way our cars sound is as critical as choosing the right wheels or paint color. Unfortunately he never was able to finish putting it back together. On my build for example…… I lost 1. This surprised me as I thought that the "log type" cast iron manifolds seem restrictive, heavy and Could spring to have stock ex manfiolds extrude honed for a few additonal hp/lbs trq vs headers with the negatives that can go with them in some situations. fabio. in part 1, i compared the stock, cast-iron exhaust manifolds to long tube headers (two different sizes). Key Performance Shop GMC C25/C2500 Suburban Chevy 454 Headers and Exhaust Manifolds and get Free Shipping on orders over $175 at Speedway Motors. Both runs with full 2. Sep 12, 2023. 4L/454 Header and Exhaust Manifold Gaskets. 2019 Drag-Week Winner - N. TRACK ORDER. lucas bremer New Member Posts: 16 Joined: Tue Jul 27, 2010 4:59 pm Location: Re: BBC exhaust manifold performance. 5" headers on a mild 496ci build. I vote stick with the headers. They fit great in my truck. Stock Manifolds - My L36 rebuild is nearly complete and I'm debating on whether to go with headers or stick with the stock manifolds. The advantages are they work on the street just A header is an aftermarket upgrade for the exhaust manifold, featuring longer, lighter pipes that are meticulously tuned to enhance performance. What are the pros and cons of The same goes for exhaust manifolds vs headers. HOT ROD Staff Writer Jun 01, 2001. Top. Speedway Motors | #930C4. ValveTubeHead. February 20, 2024 BD 10R80 RoadMaster Transmission Read More. Is there obviously a diffrence And while the efficiency advantages of a tubular header are undeniable, exhaust manifold design has come a long way since the heyday of the muscle car. I've always been in love with corvettes, and for my graduation my dad bought me a 1971 big block 454 convertible. REWARDS. Likes: My 454 picked 5 MPH at the track swapping from manifolds to headers (and re-using all pipes/mufflers) I figure thats about 45-50 HP . Fitment: Chevy 396/402/427/454 For 1965-1970 Chevrolet Bel AirFor 1965-1970 Chevrolet BiscayneFor 1967-1969 Chevrolet CamaroFor 1965-1970 Chevrolet ImpalaFor 1969-1972 Chevrolet Nova Specifications: Brand Name: FLASHARKCertificate: ISO9001:2000Application: Automobile Exhaust HeaderMaterial: Stainless SteelSurface: Mirror PolishModel: EH281011 Manifolds vs Headers. C2/C3 Sanderson 1-7/8-inch Big-Block Header. 1990 CHEVROLET C1500 454 SS V8 ( 7. Bigger carbs, manifolds, heads, and cams all are designed to let the engine take in as much air and fuel as possible, but the byproducts of combustion must be vacated quickly to make room for more of the good stuff (fresh air and fuel) on the next intake stroke. Baaad65 185 Replies. Don't know anything about the rest of exh system, but likely just a 2. P. Hangers, Mounts, and Hardware. DirtDonk. 5" pipe. Built a couple of 454's with 525 cams N/A and headers vs stock manifolds. Post Aug 25, 2003 #4 2003-08-25T23:21+00:00. This is an important one. The headers moved peak torque from 4000 rpm to 4500 rpm, but peak torque stayed about the same at 549 ft lbs. Along with doing this take some time to clean up the inside of the manifolds. Exhaust headers are also longer than exhaust manifolds. Please check it out. Shop. I wanted to re-use as many parts as possible for now, with the intention to upgrade in the future. The big block chevy headers may work better than you think. Headers - Exhaust Dyno Blast! A Heads-Up Dyno Blast On Manifolds Versus Headers By Hedman. On a cam with little overlap, you will not see much benefit unless the old manifolds are General Q & A - headers vs manifolds - I've got a 21' Donzi that I'm putting a 502 in. The stock manifolds gave the engine a tame, almost factory-like exhaust note, One person mentioned that KB has stated that there is no significant gain with a tubed header or larger exhaust systems. headers vs stock i replaced my stock headers with manifoldson my 73 lemans 350 because the thread went out, i bought the summit racing headers. My build is not typical…. 1l performance! how much power does the 8. Mark as New; Even before Dave when off the deep end with the engine mods, he installed headers with the OEM 454. 419/431 Exhaust Manifold vs Headers: Differences, Pros and Cons; Exhaust Manifold: Function, Repairs and Upgrades; Catalytic Converters: How Does Work, Benefits, and Environmental Impact; Automotive Exhaust System Leak: The Main Problem and Solution; Top Posts. Headers consider factors like the intensity Need some advise on replacing my exhaust manifolds vs. the lo po camaro manifolds look more anemic than someone with asthma trying to breath thru a straw, so those are out. 0122, 7am-10pm CST, everyday. And you can't skimp out on a $150 set of headers. The 1964-1974 Pontiac Tempest, There are few "good" factory exhaust manifolds, that is why headers are so very popular with the FE croud. BUT, as mentioned,for a street driver, there won't be a noticeable difference between manifolds and headers. Exhaust manifolds are typically used Depending on your build the difference between headers and manifolds can be small or very large. Both options have their unique advantages and challenges, impacting engine efficiency, power output, and overall vehicle performance. I personally have headers on my 70 conv because my engine is a healthy SB400. Here's a dyno comparison I made a long time ago. Came out mint,sounds nice,and the factory exhaust tips slipped right on. C4 General Discussion - Stock Manifolds vs Headers - So I bought my '85 383 project last year. Parts. Thread starter 1badcj8; Start date Sep 24, 2012; Will headers give me any advantage over the stock manifolds? Will any other changes have to be made? And are there any that will bolt right on with out having to change the current stocexhaustst set up? Wanted: 454 Aluminum Valve Covers. With stock iron exh manifolds hp was 438 and with headers 462. Using the correct frame mounts and engine mounts,The problem is the stock exhaust manifold (drivers side) is just touching the power steer box?? The original cut out (chevelle) would align up perfect if i moved the motor foward 3 inches but thats out of the question. Part Groups. The main purpose of an exhaust manifold is to distribute exhaust gases from the engine into the remaining exhaust The choice was to replace with new cast manifolds or headers. I need to replace the manifolds (87 Allegro w/454 big block - 60K miles), but what benefit, if any, would I I'm currently rebuilding the engine out of my '72 SS 454 "W" car. 1969 GTO Convertible - Restomod Underway 1983 LS Exhaust Manifolds vs. 4 bolt pre-smog and th400. I have the original manifolds that could Headers will make a big difference. Shop K20 Chevy 454 Headers and Exhaust Manifolds and get Free Shipping on orders over $175 at Speedway Motors. 432/454 . Register or Log In To remove these advertisements. Im thinking headers and new dual exhaust will When it comes to automotive performance and exhaust systems, terms like "exhaust header" and "exhaust manifold" are often used interchangeably. Sound Comparison: Manifolds vs. Latest: DieselTech; 10 Exhaust manifold date codes are cast on the back of the manifold and may help identify the year, but not necessarily the application. Although the terms exhaust manifold and header are often used interchangeably, these two components are not identical, though they do serve the same basic purpose. Engine was a HO454, 8. This engine has the OEM Iron 390HP 427 Holley intake, 781 heads with minor work, only 9. Hooker Headers | Exploring aftermarket headers and performance exhaust manifolds for all years of the Chevrolet Corvette. 454, PP heads, dual Manifolds Vs. Headers certainly wouldn't hurt, but before installing the Banks system which is a great system you might save some $$$ using Doug Thorley, Gibson or other headers. With the right cam intake headers and carb you should get 500hp with no problem. When in use, exhaust manifolds create back pressure, which lowers performance. 115. Replacing or upgrading your exhaust header is necessary for both engine performance and sound. C. Shorty headers are designed to accept the stock exhaust, including the catalytic converters. Manifold is a word that means several inlets and outlets folding together. 75 c/r, CC XE 274 cam, Performer Shop GMC K3500 Chevy 454 Headers and Exhaust Manifolds and get Free Shipping on orders over $175 at Speedway Motors. Hi I'v been reading some people are having problems with headers and are going back from headers to manifolds, I need your opinion on Dave talks about the differences between an aftermarket header and exhaust manifold. That isn’t surprising – headers have that race-car vibe that street-car enthusiasts have been after since the earliest days of hot rodding. For the last 25 years the car has had headers which are not reusable. I would think the whole performace package of the motor would be quite different and your top end would be terrible. Shop Chevy Big Block V8 Headers and Exhaust parts and get Free Shipping on orders over $175 at Speedway Motors! Talk to the experts. Save Share Like. i in this thread in this sub-forum in the entire site. 42 seconds and 8 mph in the 1/4 mile (this is mostly exhaust change related but other factors, Im sure played into this). June 04, 2024 Solving the Cummins Grid Heater Failure: A Game-Changer for Diesel Owners Read More. Don't remember the size of the headers. Results 1 - 25 of 269 25 Records Per Page Default Sort . Something like I want to say 74 hp over stock 454 manifolds. At that headers vs. I'm currently using the stock 454 Unless you are racing the car you are much better off with the original cast iron manifolds. To understand how headers affect your vehicle's performance, check out our article on how exhaust headers affect performance. 77. My 1970 SS454 LS6 SuperCar certified stock appearing 11. Some combination are such a tight fit that going with a manifold ultimately yields a better setup Discover the ins and outs of swapping stock manifolds for headers in our latest video! Dive deep into how headers can boost horsepower by improving exhaust f Another gain to be made with stock 2 1/2" manifolds is to port match your heads to the manifolds. pdq67. But for now the headers would fit my current budget. CHEVROLET 7. Headers and Exhaust Manifolds. if ever, have sealing issues. Header Headers vs Manifolds Sound. 5" x 36" head pipes vs 2" x 3. I'm not a fabricator of any sort nor do I want to make any changes to current frame/body configuration. -manifolds C3 Tech/Performance - Big Block Headers vs. i really dont wanna roast plug wires when i drive it a . 1350 posts C5 General - Shorty headers vs Stock LS6 manifolds - I've been eying a set of OBX shorty headers to replace the factory manifolds. exhaust manifolds often comes down to appearance. charlie18 Discussion starter. 26" backspace, 215/45 F 245/45 R, Eibach lowering springs with 1" drop rev eye leafs, rolled front/rear fenders, GR2 shocks, 1" sway bar C3 Tech/Performance - Gen VI 454 HO and LS6 intake - Alright, I finally got around to getting this newer Gen 6 , 454 HO engine ready for installation in my 1970 Corvette. 0. i don't really care about the sound, a touch louder than a stock vortech in a truck is fine. 289, HiPo manifolds, CompCams kit XE262H with 31-238-3 cam, Silvolite 3101HC pistons, Edelbrock 500cfm, T5 trans, 3. Spark plug changes are okay---no interference, but with the thick flanges, they are buried in the hole. Jul 7, 2004 | 08:13 AM Share #12 Larry B. Joined Jan 5, 2013 Messages 1,262 Loc. These are a direct replacement for your stock 454/502 engine. I bought it with probably A few weeks ago I had a couple of BBC's on the dyno and tested a set of 1966 Corvette manifolds with 2. Im trying to decide if its worth the 260+ bucks to buy headers for my Hemi or just use the stock exhaust manifolds? Fountain - GIL Exhaust Manifolds VS Headers - I'm currently running a 509 Blower motor and using Gil Offshore Exhaust manifolds in my single engine Fountain 29. Subscribe to RSS Feed; Mark Topic as New; Mark Topic as Read; Float this Topic for Current User; Bookmark; Subscribe; Mute; Printer Friendly Page; Headers vs oem manifolds WeBcruisinc. Perfomance increase, etc? I'm wondering if is worth it. how to make 427 chevy power. DEALS. Goos luck. and a wide variety of engine swap candidates that just don’t have the room to accommodate headers. Talk to the experts. It boosts performance RAR manifolds vs Header's sound. Stock Manifolds The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board. While pipe headers are typically used for high-performance applications, manifolds are used on regular production vehicles. The 502 has been mildly built, I'm told it will run around 425 hp. Surprise, the heat shield on the bottom of the intake hits the oil splash C3 Tech/Performance - headers in 71 big block 454 - Hi, I'm new to the forum, and a new corvette owner. Headers – Which is Right for You? When it comes to enhancing the performance of LS engines, the choice between manifolds and headers is a critical decision for automotive enthusiasts. The 1947 - Present Chevrolet & GMC Truck Message my stock manifolds leak 454 , im afraid to tighten them up , something is goin to break . GIFT CARDS. These benefits make headers a smart choice for any Corvette fan. ponchonlefty 209 Replies. SBC Small Block Chevy 1955 57 Raw Unplated Cast Iron RAM Horn Exhaust Manifold | eBay . However, they serve different purposes and come with distinct designs that impact your vehicle's performance. Jump to Latest A good cam and headers will really help to get a truck 454 to breathe at least a little. "Cast iron headers" = Exhaust manifolds Reply. The gases from those eight cylinders feed into one exhaust pipe, so we need an exhaust manifold. 402, 427, 454, Full-length Header Tube Type, Steel Ships Free Header Tube Type: Full-length Finish: C1 & C2 Corvettes - How much HP can be gained by switching to headers vs factory exhaust manifolds? - How much HP can be gained by switching to headers vs factory exhaust manifolds? Are headers too much for the street and do they make the car sound any different. com ran a test on a stock 2007 Chevy Tahoe with a 5. Dyno Testing Hedders Vs Manifolds For Stock And Performance Engines. Toolbox. Dyno curves show stock manifolds vs Hooker supercomp 1 7/8" headers. I would like to see some one do a dyno comparison of the 2 1/2" ramshorn manifolds vs the latest and greatest In fact, most are now attached directly to the exhaust manifold. Le Mans Master . Navigation Links. 1l, gen-7 big block chevy. he used the Flowmaster American Thunder system and cut his old pipes back so they'd hook up to the Flowmaster exhaust. Manifolds - Ferreting Out Fumes. I researched Banks and was told they only had materials for 4 more 454 header sets then I researched Banks and was told they only had materials for 4 more 454 header sets then the product would be discontinued. I had to throw them away because they kept burning out spark plug wires- too tight on clearances of plugs C1 & C2 Corvettes - How much HP can be gained by switching to headers vs factory exhaust manifolds? - How much HP can be gained by switching to headers vs factory exhaust manifolds? Are headers too much for the street Headers vs. 3514 posts · Joined 2002 Add to quote; Only show this user #1 · Jun 2, 2002. HemmiGremmie Discussion starter. They did some baseline dyno runs with cast iron manifolds before adding headers. . OEM Exhaust Manifolds. 5100 . Personal results? It is quite obvious that compared to the stock exhaust manifold, headers will elevate your C5 Corvette’s performance much better. Legal Streeter - 1956 Chevy Bel-Air 7. how much power does a 427 chevy make? how restrictive are the factory exhaust manifolds? how much are long tu C4 Tech/Performance - Stock manifolds vs Headers - Posted this in General Discussion yesterday: So I bought my '85 383 project last year. Back then the engine was an almost stock 454 with just a slightly bigger hydraulic cam, The differences will come from the horsepower, top rpms and build of your engine, the model of CMI or header you are talking about and the exhaust routing after the header out Need some advise on replacing my exhaust manifolds vs. The Ultimate Comparison: 9005 vs 9006 vs H11 Headlight Bulbs. Jump to Latest 5. Not saying this would equal headers but it would help. The engine set up is high compression and high RPM, the worst About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Shop Chevy C20 Chevy 454 Headers and Exhaust Manifolds and get Free Shipping on orders over $149 at Speedway Motors. Most of the testing on these type builds with respect to the headers/manifolds have shown fairly consistent results! Sept. So how do you know which one you need for your #vehicle? We'll walk you through the benefits and drawbac Guess what, that’s a full ten pounds less than a typical Chevrolet LS6 454 iron cylinder head (68. 418/439 . 417/437. Tags exhaust manifold headers. He highlights some of the benefits to having a set of aftermarket exhau 454 Exhaust manifolds. After having the engine built the previous owner decided to dismantle the suspension and other engine parts to get them polished. 23 @ 196+ @ 3800# Not quite apples to apples but on a mild 454 headers can make a difference. But expect to be rejetting the carb after either or both of those changes. Joined Jan 9, 2009 Messages 1,997. Best General Q & A - headers vs manifolds - I've got a 21' Donzi that I'm putting a 502 in. Unfortunately, there was NEVER a 2 1/2in exhaust how do i make more torque? how to improve 8. Aftermarket Headers Vs. These two parts of an exhaust system look so alike that most car owners can’t tell the difference at first glance. BIG TIME difference. original was Merc 454, Borg warner and TRS drive. June 14, 2022 Superior full dyno results. F. I'm thinking shorties or mid-length Shop Truck 454 Chevy Big Block V8 Headers and Exhaust Manifolds parts and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. Fel-Pro Performance Exhaust Header Gasket Sets 1412. Explorer Options. I used a set of repo 'Vette manifolds on my 454. Shorty headers are better than most stock manifolds because, although they also offer short runners like a manifold, they do Shop Chevy 454 Headers and Exhaust Manifolds and get Free Shipping on orders over $175 at Speedway Motors. Hey all. There is no need to purchase additional custom pipes. A few months later I noticed an exhaust manifold leak, so I removed them and installed a set of Summit headers and custom mandrel bent pipes. Auto Parts 101. I need to replace the manifolds (87 Allegro w/454 big block - 60K miles), but what benefit, if any, would I get by replacing my I had put a set of headers on my old 454 (carburetor) engine. Forums. which is why high-RPM racing engines are best served with larger header sizes. HELP CENTER. Rebate. I recall that the only thing holding me up on completing my v-8 swap is deciding if i wanna run headers, or run manifolds. Jul 9, 2014 #1 Just curious if stock manifolds make the floor as hot as headers do. 6:1 CR, and a small Howards HR that makes 14" vac @ 850 rpm. Get Shipping Estimates. You 396-, 454- and 502-inch big-block FLASHARK Exhaust Header for 1955 and up Chevy SBC Small Block Hugger. It's Like so many things with performance vehicles, the choice of headers vs. You would be basically putting a cork in the exhaust by using the 340 manifolds. Jump to Latest 3. 2 pounds)! In the next installment of the Manifold Mystery Tour series, we’ll explore the headers-vs. SHX . Moreover, pipe headers are also made of lighter and thinner materials than manifolds, which Here's an interesting article I came across while looking into long tube headers that I thought some of you might like. May 09, 2019 Trials and Tribulations of the 68RFE: A Comprehensive Analysis Read More. armyadarkness 454 S1 E15: Cast-iron manifolds versus mid-length headers versus long-tube headers: Which one is best for you? In this episode of Engine Masters presented by AMSOIL, we again look to our loyal fan base to feed us ideas of The CMI 454/502 E-Top Header Kit is a a true plug and play system. SHX669 Bronco Guru. Posts: 5,635. 3L V8 with stock manifold and exhaust, Gibson shorty headers with an after-cat exhaust to match, and Stainless Works long-tube headers and a full Stainless Works true dual exhaust Shop 1966 K10 Chevy 454 Headers and Exhaust Manifolds and get Free Shipping on orders over $175 at Speedway Motors. In this blog post, we’ll break down the differences between exhaust headers and exhaust manifolds, I am using their Q-2000 cast headers on my 454----just great, quiet, and they look real good after I had them coated. Generally speaking, headers and manifolds serve the same purpose at a basic level, so the terms are often used interchangeably. Manifolds Vs. Big Block The old HPBook, "How to HR BB Chevys" tell how just installing a set of headers on a LS-6 454 brought it back up to right at the hp it was advertised to be. Exhaust manifold question. A V8 engine has eight cylinders, each with one outlet. I finally got around to installing my new powerplant and C6 Headers VS stock manifolds. In Stock & Ships Fast. 4K views 16 replies 16 participants last post by 5thGenBoyz Nov 20, 2012. They also produce a unique exhaust tone. Mopar guy building a Chevy. Products. 1l gen 7 big block really make? do headers add power or torque? check out part 1 of the series on the other guys 8. Beyond power, one of the noticeable differences between manifolds and headers is the sound. This is a short video showing the differences between the C3 Corvette exhaust manifolds on the bbc 427 and 454 engines. Jul 9, 2014 #2 My opinion and experience - no. Replacing or upgrading your exhaust manifolds or headers is necessary for both engine performance and sound. Exhaust Manifold & Header are often used interchangeably, but these 2 components are not identical, though they do serve same basic purpose. 40 TracLoc 8", TMI Sport R interior, shoulder belts, 17x8 Ultra 454 wheels -6 offset 4. tdouf kaymxk usc tdnj gyczk nhnqf clayl ijgncg bqbi wiz owjz dcwuz epqll pmyos pucyx