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55 Results Found For "exhaust seats"

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Results 1 - 24 of 55

On Sale

Pypes Street Pro Exhaust Systems

Pypes Street Pro exhaust systems are designed to boost your car's performance to the next level—you'll get more power, better mileage, and a rich, throaty tone that can't be ignored. Built to outflow and outlast factory exhausts, these systems feature mandrel-bent, 16-gauge, stainless steel pipe and precision-matched stainless steel mufflers. Don't let the looks of these mufflers fool you. Although at idle, you may cause passengers to reach for their seat belts—upon acceleration, a smooth, authoritative tone turns apprehension into a reassuring confidence. These great street/strip mufflers will maintain their rich sound qualities for life because there is no filler to burn off. They're recommended for stock to medium-modified vehicles where an aggressive sound is appreciated but not advertised. Pypes Street Pro exhaust systems include stainless steel hangers, clamps, and instructions; their slip-fit connections facilitate a fast and trouble-free installation (some cutting may be required). Order the model designed for your vehicle.

4.13 out of 5 stars ( 200 )

$797.79

$1,150.79


$757.79

$1,110.79

Summit Racing™ Precision Cast Cylinder Head

Summit Racing™ precision cast cylinder heads are made from tough A-356 aluminum alloy and feature Permanent Mold "As-Cast" technology. Port accuracy is unrivaled--meaning CNC porting is not required to provide superior flow. The result is CNC-ported performance at a fraction of the price! We start with precision CNC-finished faces and bolt holes for accuracy and fitment. American craftsmen expertly size and install the manganese bronze valve guides and interlocking ductile iron seats before finishing with a competition-grade valve job. From there, the decks are given a final pass for superior finish. They are finish-assembled in the USA with top-quality components like PAC Racing springs, fasteners, one-piece 21 4N stainless valves, machined locks, Viton® seals and chromoly steel retainers. The final result is the performance you want and Summit Racing™ quality you TRUST!

4.21 out of 5 stars ( 14 )

$764.99

$899.99

ATK High Performance Aluminum Cylinder Heads for Small Block Chevrolet

Outfit your top end with a set of these assembled ATK High Performance aluminum cylinder heads for small block Chevrolet. They're cast, machined, and assembled with A356 aluminum alloy. The heads feature the latest port designs for maximum efficiency and increased power, and improved stock exhaust port location for better header fitment. ATK High Performance aluminum cylinder heads for small block Chevrolet include: * 2.020 in. stainless steel, swirl polished with undercut stem intake valves * 1.600 in. stainless steel, swirl polished with undercut stem exhaust valves * Manganese bronze valve guides * Alloy valve seats * 1.437 in. diameter valve springs (.600 in. max valve lift) * Chromoly 7-degree valve spring retainers * Single groove 7-degree valve locks * Valve spring locators * 5/16 in. flat pushrod guideplates * 3/8-24 in. rocker arm studs

Not Yet Reviewed

$798.99

ATK High Performance 315cc BBC Aluminum Cylinder Heads

ATK offers select parts for your build, including cylinder heads. They use them in their engine combinations and are available to complete your big block Chevy engine or upgrade existing components. ATK High Performance 315cc BBC cylinder head features: * A356 aluminum construction * Stainless steel intake and exhaust valves * Manganese Bronze valve guides * Viton® valve seal * Powder meatal valve seats * Steel retainers with 10-degree locks * Spark plug dimensions: 14mm x .708 in. with gasket seat

Not Yet Reviewed

$1,048.99

ATK High Performance 250cc LS1/LS6 Aluminum Cylinder Heads

ATK High Performance 250cc LS1/LS6 aluminum assembled engine cylinder heads are complete new builds. They include valves, valve springs, valve spring retainers, valve stem seals, and soft plugs. All threads are checked and repaired, if necessary; and all passages and part interfaces are pressure checked. Product specifications: * Material: A356 aluminum * Bolt count: 6-bolt head * Intake port volume: 250cc * Intake port dimension: 3.227 in. H x 1.119 in. W * Intake port location: Stock cathedral port * Intake valve size: 2.080 in. * Intake valve material: Stainless steel * Exhaust port volume: 105cc * Exhaust port dimension: 1.628 in. H x 1.722 in. W * Exhaust port location: .086 in. raised * Exhaust valve size: 1.60 in. * Exhaust valve material: Stainless steel * Combustion chamber size: 61cc * Valve cover bolt pattern: Perimeter bolt * Valve angle: 11 degree * Valve spring pocket diameter: 1.610 in. O.D. * Valve spring pac: 1905 dual spring (hydraulic roller) * Valve spring setup height: 1.800 in. * Valve spring closed pressure: 160 lbs. (with retainer) * Valve spring open pressure: 1.200 in., .600 in. lift, 425 lbs. / 1.150 in., .650 in., lift 445 lbs. (with retainer) * Valve spring max lift: .650 in. * Valve guide material: Manganese bronze * Valve seal material: Viton© * Valve seat material: Powder metal * Retainer material: Titanium * Deck thickness: .750 in. * Minimum bore diameter: 3.900 in. (will not fit stock bore 4.8L/5.3L) * Flat mill: .006 in. per cc * Spark plug dimensions: 14mm x .708 in. with tapered seat * Torque specifications per application based on factory or aftermarket bolts/studs

Not Yet Reviewed

$998.99

FLOTEK 276cc LS3 Cylinder Heads

FLOTEK 276cc LS3 cylinder heads feature as-cast high-flow intake runners that flow significantly better than the stock LS3 heads. The ports are in the stock location, so no special valvetrain parts or rocker arms are required. These heads are 15 degree, which is the same as the stock cylinder heads—no special pistons are required. They will work on any LS block that has a 4 in. bore or larger. FLOTEK 276cc LS3 cylinder heads combine high performance and high quality at a value price. Select from bare or assembled models.

3.0 out of 5 stars ( 2 )

$774.00

Pro-Filer Performance Products Small Block Chevy All American Cylinder Heads

Pro-Filer small block Chevy All American cylinder heads have a 23 degree valve angle, providing bolt-on compatibility for stock accessories. They're designed for all-around racing and are offered with 185cc, 195cc, 210cc, 235cc intake ports; 64cc, 68cc, 70cc, or 72cc chambers; and straight or angled spark plug locations. You can order the heads assembled or unassembled for engine builders. End pads are drilled and tapped for accessories, and bronze guides are included to reduce stem wear. Nearly 200 models are available; order the heads with options recommended for your application. Whether you're running on the street, strip, or track, equip your ride with Pro-Filer small block Chevy All American cylinder heads. Additional features: * Revised spark plug location to improve flame travel * Uses gasketed 3/4 in. reach plugs like NGK R5671-7 Series

4.5 out of 5 stars ( 4 )

$775.00

$1,075.00

On Sale

AFR 335cc Enforcer BBC Cylinder Heads

AFR's 335cc BBC Enforcer cylinder heads feature their Permanent Mold "As-Cast" Technology surfaces on the intake runners, exhaust runners, and combustion chambers that allow for extremely accurate and repeatable port location/performance. These budget-friendly heads are perfect for your 509 to 540 cu.in. operating below 6,500 rpm. They come fully assembled with the identical components found in AFR's higher end CNC-ported cylinder heads—such as ARP rockers studs, PAC Racing springs, Viton® valve seals, AFR adjustable guide plates, machined bead valve locks (not stamped), hardened spring seats, and AFR's one-piece 8mm 21 4N stainless steel valves. Order the cylinder heads recommended for your year/make and engine application.

4.0 out of 5 stars ( 5 )

$1,023.75


$921.38

On Sale

Edelbrock Performer RPM Cylinder Heads

Edelbrock Performer RPM aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. These heads offer improved power throughout the RPM range for greater throttle response and top-end horsepower. Countless options are available; order the model recommended for your vehicle and engine application.

4.25 out of 5 stars ( 165 )

$1,119.50


$780.50

$1,073.50

Briggs & Stratton 206 Racing Crate Engines

Briggs & Stratton 206 racing crate engines are factory-sealed long blocks with ground cams and controlled piston pop-up (reducing compression variance). These budget-friendly mills feature a simplified IKF/WKA rule set designed to maintain a stock configuration, right down to the factory-shipped carburetor jets. Simply put: the 206 engines even the playing field so that drivers can focus on the important task at hand--winning the race! Briggs & Stratton 206 crate engine features and specs: * Primary use: Karting, Microstocks, Jr. Drag Racing * Engines are assembled by hand in Milwaukee, WI using tooling and dies specifically designed for racing for unparalleled repeatability * Reinforced, cast iron sleeved, dual ball bearing racing cylinder * Single cast, custom aluminum alloy cylinder head with high-flow intake port, custom seat/guide material * Squeeze cast, T-7 heat-treated aluminum rod with reinforced I-beam * Carbon steel crankshaft with induction-hardened, micro-polished, crankpin-reinforced timing gear * Cam ground, barrel-faced, eutectic alloy piston with 3-piece ring set with chrome faced top ring * .255 max. lift ground cam with nitrited lobes and built-in mechanical compression release * High-silicon, racing-engineered valve springs * High-grade stainless steel dished valves with nitrited exhaust * 3-piece, automotive-style keepers and reinforced rocker arm and lock ball * PVL digital ignition with built-in 6,100 rpm rev limiter * PVL steel hub, cast aluminum flywheel * Briggs & Stratton tooled 22mm round slide, fully adjustable jet carburetor * Custom grafoil composition head gasket

4.71 out of 5 stars ( 7 )

$759.00

On Sale

Edelbrock Performer Cylinder Heads

All Edelbrock aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. They offer improved power throughout the rpm range for greater throttle response and top-end horsepower. The intake and exhaust runners are CNC-machine profiled for superior flow and performance.

3.88 out of 5 stars ( 41 )

$1,106.50


$870.00

$1,079.50

Trick Flow® PowerPort® 190 Cylinder Heads for Small Block Mopar

Trick Flow® PowerPort® 190 cylinder heads for small block Mopar engines are made from A356-T61 aluminum because it's much lighter but every bit as strong as cast iron. The intake runners have been enhanced to increase airflow, and both intake and exhaust runners feature Trick Flow's® special CNC Street Ported treatment that combines premium-quality CNC machining with a standard resolution finish that's perfect for making more power. That's not all! Newly designed rocker arm shaft mounting bosses are stronger than the OE design, and larger diameter pushrod holes have been incorporated to accommodate 3/8 in. pushrods for use with flat tappet and hydraulic roller camshafts. Bronze alloy valve guides, ductile iron valve seats, and multi-angle valve seats further increase performance and durability. Assembled cylinder heads include premium 11/32 in. stainless steel valves, Trick Flow by PAC Racing® valve springs, steel valve stem locks—and have chromoly and titanium retainer options. The heads fit all non-emissions 318, 340, and 360 engines found in many Chrysler vehicles from 1967-2003. You read that right: these heads fit both LA and Magnum-series engines, giving builders a truly "best of both worlds" scenario. That means Magnum builders can use readily available LA engine parts such as intake manifolds and valve covers. PowerPort® 190 cylinder heads are available fully assembled or as bare castings; sold separately. Order the model recommended for your year/make and engine application.

4.93 out of 5 stars ( 15 )

$949.99

Edelbrock Victor Max Wedge Big Block Chrysler Cylinder Heads

These Edelbrock Victor Max Wedge big block Chrysler cylinder heads are designed for the serious race enthusiast. They are made of aluminum and feature raised intake and exhaust ports for improved flow characteristics. The raised valve cover rails eliminate any chance of leaking gaskets. Available with or without valves, the Edelbrock Victor Max Wedge big block Chrysler cylinder heads have reamed and semi-finished valve stem guides and no valve job. They require final guide sizing, valve seat finishing before installation, and special offset rocker arms for the intake side.

4.5 out of 5 stars ( 2 )

$1,041.50

Chevrolet Performance L92 Cylinder Heads

Chevrolet Performance L92 cylinder heads are production-style aluminum heads that provide great airflow and exceptional performance. Features include: * Manufactured from 319-T5 aluminum alloy * Aluminum performance head * Fits any LS family engine with 4.000 in. bore or larger * Solid stem intake and exhaust valves * .510 in. Max Lift valve springs * As-cast L92-style intake ports * D-shaped exhaust ports * As-cast combustion chambers * Angled spark plugs (14mm; 5/8 in. hex; 3/4 in. reach; taper-seat plugs) * 15 degree valve angle * Bolt-down-type rocker arms * Center-bolt valve cover hold-downs

Not Yet Reviewed

$999.99

Edelbrock Performer RPM Bare NHRA Stock/Super Stock Cylinder Heads

Edelbrock Performer RPM bare NHRA Stock/Super Stock cylinder heads deliver great throttle response and power from 1,500 to 6,500 rpm, and with winning results. Offering the best in quality and performance, these bare heads are cast and heat-treated in the Edelbrock Foundry and machined in their manufacturing facility. Designed with the latest computer technology, they have highly efficient ports and state-of-the-art combustion chambers shapes for improved performance throughout the rpm range with great throttle response and top-end horsepower. Edelbrock Performer RPM bare NHRA Stock/Super Stock cylinder heads include top-quality features, like threaded inserts in rocker stud and exhaust bolt holes for superior strength and durability, and manganese-bronze valve guides with ductile iron valve seats.

4.0 out of 5 stars ( 1 )

$782.50

$1,041.50

Briggs & Stratton Junior 206 Crate Engines

Briggs & Stratton Junior 206 crate engines are made tough! Each engine is hand-assembled in-house using tooling and dies specifically made for racing--for unparalleled repeatability. The factory-sealed long blocks include a ground cam and controlled piston pop-up (reducing compression variance). They're a simplified IKF/WKA rule set designed to maintain a stock configuration, right down to the factory carburetor jets. These 206 race engines are powerhouses! Briggs & Stratton Junior 206 race-only crate engine specs and features: * Primary use: for karting, high school/collegiate Supermileage Competitions * Reinforced, cast iron sleeved, dual ball bearing racing cylinder * Single cast, custom aluminum alloy cylinder head with high-flow intake port, custom seat/guide material * Squeeze cast, T-7 heat-treated aluminum rod with reinforced I-beam * Carbon steel crankshaft with induction-hardened, micro-polished, crankpin-reinforced timing gear * Cam ground, barrel faced, eutectic alloy piston with 3-piece ring set with chrome faced top ring * .255 max. lift ground cam with nitrited lobes and built-in mechanical compression release * High-silicon, racing-engineered valve springs for seasons of racing * High-grade stainless steel, dished valves with nitrited exhaust * 3-piece, automotive-style keepers and reinforced rocker arm and lock ball * PVL digital ignition with built-in 4,100 rpm rev limiter * PVL steel hub, cast aluminum flywheel * Briggs & Stratton tooled 22mm round slide, fully adjustable jet carburetor * Custom graph oil composition head gasket * Max Torque clutch, driver, and installation kit * Green premium air filter * Carburetor locking cap

5.0 out of 5 stars ( 1 )

$759.00

Trick Flow® DHC™ 200 Cylinder Heads for Small Block Chevrolet

Build the ultimate classic-looking hi-po Chevy small block with Trick Flow® DHC™ 200 cylinder heads. Patterned after Trick Flow's popular DHC™ 175 as-cast heads, DHC™ 200 heads get the full CNC-ported treatment to substantially ramp up power production. New 64cc CNC-profiled combustion chambers with 2.055 in. intake valves and CNC Street Ported runners promote big increases in high-RPM horsepower and torque. Bronze alloy valve guides, ductile iron valve seats, and stainless steel valves ensure excellent durability, while proprietary valve profiles and multi-angle valve seat machining maximize flow at low lift. Extra thick decks and walls increase casting strength for peace of mind in demanding conditions. Chromoly steel retainers, 7-degree machined steel valve locks, factory intake and exhaust port locations, and your choice of Trick Flow by PAC Racing valve springs are also standard. As with all Trick Flow® cylinder heads, DHC™ 200 heads are cast from A356-T61 aluminum to keep weight low. To preserve the vintage theme, exterior touches like straight spark plug holes, castings with or without accessory bolt holes, and other OE double hump head styling cues deliver the traditional look you're going for. Sold individually.

5.0 out of 5 stars ( 1 )

$949.99

Briggs & Stratton M-Series Crate Engines

Building off the proven success of the Animal engine, Briggs & Stratton M-Series crate engines are the first dedicated racing engine engineered to meet the needs of the Quarter Midget market. Right out of the box, the M-Series is focused on the consistency and simplicity that racers expect. Briggs & Stratton race-only M-Series crate engine specs and features: * Performance and durability: Technology from OHV racing engineered to the specific needs of Quarter Midget racing * Assembled by hand and tested to strict quality standards * Reinforced, cast iron sleeved, dual ball bearing racing cylinder * Single cast, custom aluminum alloy cylinder head with high-flow intake port, custom seat/guide material * Squeeze cast, T-7 heat-treated aluminum rod with reinforced I-beam * Carbon steel crankshaft with induction-hardened, micro-polished, crankpin-reinforced timing gear—and hardened splined output shaft for 6-1 gearbox (555721) * Custom top control plate firewall clearance * Cam ground, barrel faced, eutectic alloy piston with 3-piece ring set with chrome faced top ring * High-silicon racing engineered valve springs for seasons of racing * High-grade stainless steel dished valves with nitrited exhaust * Three-piece automotive style keepers and reinforced rocker arm and lock ball * PVL digital ignition with built in 6,100 rpm rev limiter * PVL steel hub, cast aluminum flywheel * Briggs & Stratton tooled 22mm round slide, fully adjustable jet carburetor * Custom graph oil composition head gasket

Not Yet Reviewed

$759.00

Edelbrock Victor Series Race Cylinder Heads

Victor and Victor Jr. Series aluminum heads are designed using the latest induction technology for outstanding performance and maximum horsepower. They're ideal for the small block Ford Windsor, and small and big block Chevys. Victor Jr. Series heads are perfect for many types of competition and ultra-high performance street machines. They include threaded inserts (heli-coil) in rocker stud and exhaust manifold bolt holes. They have hardened seats and bronze valve guides for strength and durability, and a minimum 9/16 in. deck thickness and machined valve cover rails provide a more consistent gasket seal. Victor Series heads are a step above the rest, for even greater gains in horsepower. All of these heads feature reinforced rocker stud bosses, high-flow intake/exhaust ports, and specially contoured combustion chambers.

3.0 out of 5 stars ( 2 )

$782.50

HushMat Complete Vehicle Insulation Kits

HushMats complete vehicle insulation kits serve two important functions: reducing thermal transfer into your interior, and reducing the noise level by up to 15 decibels. Your engine, headers, manifold and exhaust generate tremendous heat that transfers to the metal firewall and floor—forcing your A/C system to work harder to maintain a comfortable environment. HushMat auto heat shield is proven to lower this temperature by over 40 percent. At the same time, when you drive on the highway at 65 mph, most vehicles approach 80 to 90 decibels of noise. That's like a vacuum cleaner or garbage disposal running on your passenger seat. These insulation kits use a specially designed sound deadening material to deliver a more peaceful ride. Each kit is packaged specifically for your vehicle to provide 100 percent insulation coverage—no holes in the material and no puzzle pieces to assemble. Treat your firewall, doors, floor, tunnel, rear wheel wells, trunk floor, and roof with these HushMat barriers. Order the complete insulation kit designed for your specific vehicle. Additional details: * Reduces road noise and vibration, low-frequency noise from 0 to 1,000 Hz * Stay warmer in the winter and cooler in the summer; withstands ambient temps from -30 up to +550 degrees F * Lightweight and super flexible mats; less than 1/8 in. thick and 0.47 lbs. per sq. ft. * Adhesion is guaranteed; no alcohol or acetone wash needed; no tools required * Trims easily with standard razor knife or household scissors * Self-adhesive peel-and-stick; no glue required * Outperforms closest competitive brand by over 40 percent * OEM approved; meets or exceeds auto damping specs GMO 149M – General Motors; WSB-M5G58-A1 – Ford; and MS-CD 629 Type C – Chrysler

5.0 out of 5 stars ( 1 )

$756.77

$1,151.09

Trick Flow® High Port® 192 Cylinder Heads for Small Block Ford

Trick Flow High Port® 192 cylinder heads are among the most dominant aftermarket small block Ford heads in racing. They feature unique valve spacing, .750" raised exhaust runners, extra strong castings and thick decks for additional rigidity and gasket integrity, superior cooling characteristics, and most importantly, excellent airflow. The large Fast As Cast® runners duplicate the profiles of CNC-ported heads to create ultra-high flowing heads without costly CNC-porting. The entry into the intake runner has been reshaped to help seal the area along the port roof and thicker port walls increase strength and provide more material for porting. Plus, interlocking ductile iron seats are used to handle the stresses of high heat, high horsepower applications. Other features include fully CNC-profiled combustion chambers with port-to-valve seat blending (bowl blending) and raised valve cover rails. Trick Flow High Port 192 cylinder heads are available fully assembled or as bare castings. Sold individually.

5.0 out of 5 stars ( 1 )

$799.99

$1,099.99

World Products S/R Cylinder Heads

World Products S/R cylinder heads make it easy to rebuild your engine affordably. They feature hardened steel exhaust seats compatible with unleaded gasoline, extra-thick decks and walls for improved reliability, tapped for screw-in rocker studs, and machined valve cover rails to eliminate leaks. The heads are available bare or assembled for a variety of applications. With the strength, reliability, and great price of these cylinder heads, there's no reason to bother with worn-out junkyard castings or new OEM castings—you can depend on World Products to help you do it right.

4.67 out of 5 stars ( 3 )

$882.79

$891.04

Edelbrock Victor Big Block Chrysler Cylinder Heads

These Edelbrock Victor big block Chrysler cylinder heads are designed for the serious race enthusiast. They are made of aluminum and feature raised intake and exhaust ports for improved flow characteristics. The heads will fit both tall and low-deck engine blocks using Victor intake manifolds. The raised valve cover rails get rid of any chance of leaking gaskets. Available with or without valves, these heads have reamed and semi-finished valve stem guides and no valve job. They require final guide sizing, valve seat finishing before installation, and special offset rocker arms for the intake side.

4.33 out of 5 stars ( 3 )

$1,041.50

Dart Iron Eagle S/S Cylinder Heads

These Dart Iron Eagle S/S cylinder heads are the perfect way to squeeze a little bit more performance out of your street engine. They are designed to offer many of the features of other high-end cylinder heads at a more affordable price. Dart produces these heads from premium, high-density cast iron with extra-thick decks for durability and power potential. These heads feature precision-cast 165cc intake ports and heart-shaped combustion chambers that are designed to produce great airflow without expensive or time-consuming porting. The hardened exhaust valve seats are fully compatible with unleaded fuels, and the multi-angle intake and radiused exhaust seats further improve flow, maximizing power. Dart utilizes screw-in rocker studs that won't pull out, even under heavy use, and the machined valve cover rails eliminate possible oil leaks. All you have to do is choose which combination of combustion chamber volume and valve size will best complement your engine, and whether you want fully assembled, bolt-on heads or bare, ready-to-build castings. Dart Iron Eagle S/S cylinder heads produce great throttle response and gains in low-to-midrange torque, just where you need it, for your street hot rod, musclecar, or pickup.

4.29 out of 5 stars ( 7 )

$976.58

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