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15 Results Found For "ls header bolt"

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Results 1 - 15 of 15

Ultimate Headers 321 Stainless Steel Headers

Ultimate Headers 321 Stainless Steel Headers integrate a cutting-edge, patented design, created specifically for maximum performance and minimal weight, with 3D-engineered flanges, and superior 321 stainless steel to deliver a unique combination of elegance and horsepower. Born in World War II for aircraft engine exhaust manifolds by adding titanium to basic nickel/chromium alloy steel, 321 stainless provides reduced weight, plus increased resistance to material fatigue and thermal cracking in high-heat environments. Finite Element Analysis (FEA) processes are used to create Ultimate Headers and the unique Ultimate Flanges with their signature, high-tech, ribbed reinforcements that reduce weight, improve flange cooling, and lessen heat-induced warpage; while providing the required clamping forces to eliminate leakage. Ultimate 321 Stainless Steel Headers' tight radius, investment-cast, 316L stainless steel elbows immediately turn the header tubes away from the exhaust ports with a radius smaller than the tube diameter (which can't be done using a tube bender); holding the header tubes close to the block—perfect for engine swaps. Investment casting also maintains the desired wall thickness and avoids the thinner sidewall created by tube bending at the point where exhaust gas temperature and volume are at their highest. These benefits, combined with the advanced Cometic MLS (multi-layer stainless steel) header gaskets included with each set of headers, give Ultimate Headers 321 Stainless Steel Headers the leading edge when it comes to adding a total performance-enhancing exhaust system. Features include: * Patented design * Includes premium corrosion and heat-resistant ARP 12-point, 300 grade stainless steel bolts and washers * Jig fixture, TIG-welded for precise quality control * Easy to install * Header tubes are mounted high and tight for a compact, space efficient package away from steering shafts and frame rails * Eye-catching flanges add dramatic improvement to the engine compartment * Available styles include rear-dump and block-hugger designs * Available in a variety of finishes, including mill, satin, mirror polish, ceramic coated silver, and ceramic coated black *Ultimate Headers Cast Header Flanges or Extreme Low-Profile Clamps (both sold separately) are recommended for the end of the collectors

4.6 out of 5 stars ( 5 )

$2,659.00

$2,849.00

American Racing Headers Cadillac CTS-V Headers

American Racing Headers Cadillac CTS-V headers are designed to work with ARH's midsection X-pipes to handle huge power, even on supercharged applications. Available with or without catalytic converters, they are offered in a variety of primary sizes and collector diameters. Each primary tube is sized to generate the least amount of restriction and high-flow, state-of-the-art merge collectors are tuned for maximum horsepower and torque. Available in a choice of styles, Cadillac CTS-V long systems are designed to allow you to reuse your factory mufflers or attach to aftermarket axle-back exhausts with a simple mark and cut (no welding required). Cadillac CTS-V short systems use the factory mufflers and mid-pipes for a more cost effective way to get ARH power and performance. Additional features of American Racing Headers Cadillac CTS-V headers include: * 100 percent long-lasting 304 stainless steel * 3/8 in. thick laser-cut flanges for a warp-free seal * Hand-ported TIG-welded inlets * Optimized primary tube routing for superior fit and performance * Merge collectors include welded scavenger spikes * Catted systems feature 200 cell, metallic substrate catalytic converters for extreme durability * Systems include necessary gaskets and hardware for installation * The only set of headers you should ever need to buy * All American Racing Headers exhaust systems are for off-road use only

Not Yet Reviewed

$3,779.13

Kooks Headers Long Tube Headers

Kooks Headers long tube headers are heavy-duty and crack-resistant, featuring large diameter stainless steel construction (most applications) with smooth-flowing mandrel-bent tubing. They include gaskets, bolts, and oxygen sensor extensions where required. Also available as kits with connection pipes, depending on the application, Kooks long tube header kits include individual connection pipes, a Y-pipe, X-pipe, or H-pipe to connect to the exhaust system. X-pipes are used primarily for high-rpm performance and race applications. H-pipes create lower end power and are used on street cars for increased performance with a comfortable sound level. These connection pipes are offered in three versions: * Off-road (non-catted) for full track use with no horsepower loss and the loudest exhaust tone * With high-flow catalytic converters; recommended for street driving with little or no horsepower loss and a deeper exhaust tone * With Kooks ultra-high performance GREENCATS catalytic converters; designed for naturally aspirated and forced induction engines up to 900 hp, eliminates most "Check Engine Light" warnings Note: Kooks Headers long tube headers and connection pipes may not be legal for sale, installation, or use in some areas. Check your state and local laws.

4.67 out of 5 stars ( 40 )

$2,002.45

$2,812.45

Kooks Headers Super Street Series Headers

The Kooks Headers Super Street Series headers are a huge improvement over the stock pipes, with large primaries, collectors, and 3/8 in. flanges for sealing superiority. These headers are meticulously made and fit precisely into the engine bay of your ride. In addition to perfect fit, the headers are constructed from 304 stainless steel, which provides rust resistance throughout the life of the product. Super Streets are designed to be a direct-fit replacement for the factory manifolds, bolt right up to the factory pipes, and will provide a proven horsepower increase and corresponding torque gain throughout the powerband. No cutting or welding is required for installation. These headers were designed with performance in mind and weigh significantly less than the factory manifolds. Order the model recommended for your vehicle.

Not Yet Reviewed

$2,498.43

Kooks Headers Header and Catted Connection Kits

Offering high performance exhaust for over 50 years, Kooks header and catted connection kits are designed for maximum power, built from T304 aircraft-quality stainless steel and race tested. Solely for competition purposes, they are offered for a full range a vehicle applications. Kooks header and catted connection kits package long tube headers and a catted X-pipe, H-pipe or Y-pipe.

1.0 out of 5 stars ( 1 )

$2,465.84

$3,042.95

Kooks Headers Header and GREEN Catted Connection Kits

Kooks Headers offers header and GREEN catted connection kits for applications such as Ford Mustang 2 V and 4 V engine models from 1996 and up. Pipes are mandrel-bent from 16-gauge 304 stainless steel. The GREEN catalytic converters are EPA verified 400 cell high-flow and are suitable for use with forced induction. All products are dyno-` and race-tested and designed for maximum power. Kits include all necessary hardware for installation.

Not Yet Reviewed

$3,634.66

$4,013.05

Pypes Headers

Pypes headers are manufactured from quality 304 stainless steel to ensure top-notch performance and long life. They come available for V6 and V8 applications. Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment.

3.75 out of 5 stars ( 12 )

$2,090.79

Stainless Works Performance Headers

Gain powerful sound, better performance, and improved mileage with a set of Stainless Works performance headers. Constructed from high-quality 304L stainless steel, the headers are CNC mandrel-bent and have durable 3/8 in. thick flanges. They're available to fit the factory connection point, or attach to a custom Stainless Works cat-back exhaust. Order the style you prefer and the model designed for your year/make and engine application.

4.61 out of 5 stars ( 28 )

$2,085.25

$2,290.45

Stainless Works Long Tube Headers

Stainless Works long tube headers are constructed from CNC mandrel-bent tubing with laser-cut flanges. These high-flow headers are made for your specific application, ensuring a perfect fit and excellent performance.

4.33 out of 5 stars ( 6 )

$2,883.25

Trick Flow® GenX® Top-End Engine Kits for GM LS

Are you still confused as to which parts you need to get the performance you want? Quit wasting time and second-guessing yourself. Trick Flow® has already done the work for you with GenX® Top-End Engine kits for GM LS. Designed and dyno-tested to deliver the performance you crave for less than purchasing the parts separately, these kits save time and money! What's in these GenX® Top-End Engine kits? * A pair of Trick Flow® GenX® street/strip cylinder heads * A specially matched hydraulic roller cam * Some kits contain roller rocker arms * Pushrods * Head gaskets * Head bolts * Exhaust gaskets * Balancer bolt

3.75 out of 5 stars ( 4 )

$3,948.91

Kooks Headers Y-Pipes

Y-pipes are usually used to connect to original equipment exhaust system connection points. Kooks Headers Y-pipes are heavy-duty and crack-resistant, featuring large diameter stainless steel construction with smooth-flowing mandrel-bent tubing. Most are designed to be used with Kooks long tube headers. Kooks Headers Y-pipes are offered in three versions: * Off-road (non-catted) for full track use with no horsepower loss and the loudest exhaust tone * With high-flow catalytic converters; recommended for street driving with little or no horsepower loss and a deeper exhaust tone * With Kooks ultra-high performance GREENCATS catalytic converters; designed for naturally aspirated and forced induction engines up to 900 hp, eliminates most "Check Engine Light" warnings Note: Kooks Headers Y-pipes may not be legal for sale, installation, or use in some areas. Check your state and local laws.

3.88 out of 5 stars ( 8 )

$2,219.82

QA1 1963-72 C10 Coilover Conversion Systems

Upgrade your classic truck to a modern driving feel and performance with QA1's 1963-1972 C10 coilover conversion systems. The kits come with everything you need to convert your C10's front end to coilovers and a tubular crossmember with rack-and-pinion steering. These systems are a great way to overhaul your suspension in one go, giving you adjustable ride height to achieve the perfect stance with up to 8 in. of drop—all while dialing in the ideal ride quality and performance for your application while reducing weight 140 lbs. over stock. Order the QA1 1963-72 C10 coilover conversion system recommended for your year/make and model vehicle. Product features and details: * Powered rack-and-pinion offers quicker steering and a tighter feel. Plus, increase steering angle when fitting larger wheels and tires, and improve geometry for enhanced drivability * Increased Ground Clearance: The crossmember and control arms make your undercab rails the truck's lowest point—new upper shock mounts increase travel for a great ride and performance, even at low ride heights * Adjustable Shock Valving: Double-adjustable shocks offer independent rebound and compression tunability—great for trucks that will see track time or drivers who really want to dial in ride quality on the street * Easy, Bolt-In Installation: The crossmember comes powder coated and ready to install—no need to cut or weld your frame—it easily locates the steering rack, and you can choose mounts (sold separately) for common engines * Modular Engine Mounts: Choose from modular engine mounts (sold separately) that allow you to reuse your existing transmission mount and driveshaft (kits are available for small block Chevy, big block Chevy and LS applications—DIY mounts are also available if you want to customize the location of your engine * Front Sway Bar: The optional front sway bar (sold separately) adds even more cornering capabilities—it reduces body roll and keeps your tires planted to give you more grip in the turns Fitment Notes: * If you already have QA1's coil-over system, you can find retrofit kits to use your existing components * Total drop range depends on wheel/tire fitment * Will require you to trim inner fenders * Engine mounts are year-range specific to maintain OE bellhousing location * Optimized bump steer settings require at least 18 in. wheels -- 18 in. wheels can run up to 6 in. of backspacing -- 20 in. wheels can run up to 7 in. of backspacing * Requires use of C10 spindles * May require different headers and oil pan (Stock SBC and BBC pans fit) * Steering shaft is not included * May require new power steering hoses depending on fittings, pump, and engine placement

5.0 out of 5 stars ( 3 )

$4,238.95

$4,428.95

QA1 1973-87 C10 Coilover Conversion Systems

Upgrade your square body Chevy C10's driving feel and performance while getting the perfect stance with QA1's 1973-1987 C10 coilover conversion systems. The kits come with everything you need to convert your C10's front end to coilovers and a tubular crossmember with rack-and-pinion steering. These coilover conversion systems are a great way to overhaul your suspension in one go, giving you adjustable ride height to achieve the perfect stance with up to 8 in. of drop—all while dialing in the ideal ride quality and performance for your application while also reducing weight 140 lbs. over stock. Order the QA1 1973-87 C10 coilover conversion system recommended for your year/make and model vehicle. Product features and details: * Powered rack-and-pinion offers quicker steering and a tighter feel. Plus, increase steering angle when fitting larger wheels and tires, and improve geometry for enhanced drivability * Increased Ground Clearance: The crossmember and control arms make your undercab rails the truck's lowest point—new upper shock mounts increase travel for a great ride and performance, even at low ride heights * Single or double-adjustable shock valving offers independent rebound and compression tunability—great for trucks that will see track time or drivers who really want to dial in ride quality on the street * Easy, Bolt-In Installation: The crossmember comes powder coated and ready to install—no need to cut or weld your frame—it easily locates the steering rack, and you can choose mounts (sold separately) for common engines * Modular Engine Mounts: Choose from modular engine mounts (sold separately) that allow you to reuse your existing transmission mount and driveshaft (kits are available for small block Chevy, big block Chevy and LS applications—DIY mounts are also available if you want to customize the location of your engine * Front Sway Bar: The optional front sway bar (sold separately) adds even more cornering capabilities—it reduces body roll and keeps your tires planted to give you more grip in the turns Fitment Notes: * If you already have QA1's coil-over system, you can find retrofit kits to use your existing components * Total drop range depends on wheel/tire fitment * Will require you to trim inner fenders * Engine mounts are year-range specific to maintain OE bellhousing location * Optimized bump steer settings require at least 18 in. wheels -- 18 in. wheels can run up to 6 in. of backspacing -- 20 in. wheels can run up to 7 in. of backspacing * Requires use of 1973-1987 C10 spindles * May require different headers and oil pan (Stock SBC and BBC pans fit) * Steering shaft is not included * May require new power steering hoses depending on fittings, pump, and engine placement

5.0 out of 5 stars ( 1 )

$4,238.95

$4,428.95

Summit Racing™ Turbocharger Hot Side Combo Kits

Summit Racing™ Turbocharger Hot Side combo kits provide premium components and accessories, carefully matched, to successfully reach your power and performance target. Each of our combos contain BTR multi-layer header gaskets, an ARP chromoly head bolt kit, and Precision Turbo and Engine turbocharger gaskets, along with a Summit Racing™ Pro LS turbo manifold and wastegate. Completing each combo will be one of our 2700 Series performance turbochargers or a VS Racing turbocharger. Choose the combo best suited to your power needs. Contents and features: * BTR LS multi-layer steel gasket * ARP chromoly head bolts--12-point, rated at 170,000 psi to handle severe conditions * Precision Turbo and Engine turbocharger gaskets—stainless steel, provides a positive leak-free seal in high-temperature situations * Summit Pro LS turbo manifold—universal, 304 cast stainless steel, T4 flange, designed to handle the heat and horsepower * Summit wastegate--stainless steel base and 6061 aluminum cap with black anodized finish * VS Racing turbochargers with T4 housing * Summit 2700 Series performance turbochargers--T4 turbine housings--true race turbos offering the latest in compressor aero technology with quick-spooling and free-flowing turbines specially designed, balanced, and precision assembled with 2618 billet forged compressor wheels for class leading racers.

4.5 out of 5 stars ( 2 )

$2,133.31

$2,428.31

On Sale

ATK High Performance Chevy LM7 5.3L 385 HP Long BLock Crate Engines

With ATK High Performance Chevy LM7 5.3L 385 hp long block crate engines expect big mid to upper end power and a noticeable idle. They were designed to be performance upgrades for a 1999-2007 Chevy truck LM7 or an LS swap in a hot rod. Technical specifications include: * Horsepower: 385+ * Torque: 390+ * Block: GM 5.3L iron LM7 * Bore/stroke: Up to 3.809 x 3.622 * Year range: 1999-2007 * Displacement: 323 c.i.d. * Crankshaft: OEM GM 3.622 in. stroke internally balanced 24 tooth reluctor wheel .857 in. flange * Connecting rods: OE GM forged powder metal 6.093 in. stock bolts * Pistons: Hypereutectic dish * Piston rings: Moly rings * Compression ratio: 9.5:1 compression * Camshaft: Hydraulic roller * Camshaft specifications: Custom grind * Camshaft bearings: Installed and clocked to OEM position * Cylinder heads: OE aluminum 61.15cc 1.89/1.55 * Freeze plugs: Brass installed and sealed * Rocker arms: OE powdered metal 1.7 ratio * Oil Galley plugs: Installed and sealed * Weight: 385

4.93 out of 5 stars ( 15 )

$4,189.99


$3,989.99

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