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Chevrolet Performance has recreated the classic L88 Big Block combination in the ZZ427/480 long block crate engine. Rated at 480 hp, it features an iron block, forged steel crankshaft, and high-flow aluminum cylinder heads. An upgraded hydraulic roller camshaft improves drivability and rpm range, while lower 10.1:1 compression means you can enjoy the power on pump gas, too. The ZZ427 comes complete with: high-flow oval port heads, a high-lift camshaft, aluminum intake manifold, 770 cfm Holley carburetor, an HEI distributor, aluminum water pump, balancer, spark plug wires, and a 14 in. flexplate. If you're looking for a modern version of the classic L88, the Chevrolet Performance ZZ427/480 long block crate engine is the answer. Additional specs and features include: * 4.250 in. bore with 3.750 in stroke * Cast iron block with 4-bolt main caps * Forged steel crankshaft * Forged steel connecting rods * Forged aluminum pistons * Hydraulic roller camshaft: - Valve lift .527 in. intake/.544 in. exhaust - Duration (.050 in) 224 intake/ 234 exhaust * Aluminum oval port heads with 110cc chambers * 2.190 in. intake/1.880 in. exhaust valves * 10.1:1 compression ratio * Aluminum 1.7:1 ratio roller rocker arms * HEI distributor * 770 cfm carburetor * Aluminum short water pump * Ignition timing base 10 degrees BTDC, 36 degrees total * 6,400 maximum recommended rpm
( 5 )
$16,713.13
You're track-ready with extreme performance GM LSX376 crate engines. At home on the street and on the strip, these value-driven Chevrolet Performance crate engines offer lower-compression forged aluminum pistons, a tough bottom end, and high-flow heads. LSX376 engines make a perfect foundation for supercharging, turbocharging, and nitrous--all you need to do is supply the boost! Does your muscle deserve the LSX touch? Yes! Get the strength and power to build a winner with these features: * Race-bred LSX Bowtie block * High-flow LS3 cylinder heads * Blower-friendly 9.0:1 forged pistons * 14 in. automatic transmission flexplate * Unique LSX376 valve covers
Not Yet Reviewed
$13,568.04
QA1's handling suspension kits provide a full-vehicle upgrade that fits your needs. Available in three different levels of performance, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. Greater control and improved cornering are key benefits of QA1 Level 2 handling suspension kits. They're designed to boost performance and include a more extensive assembly of components than Level 1 kits. They offer easy bolt-on installation and full compatibility with the OEM parts you attach them to. All QA1 handling suspension kits are available with or without shocks and struts—giving you the flexibility to obtain the shocks or struts and spring rates you desire. Select the kit designed for your vehicle.
( 10 )
$5,063.95
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$8,588.95
QA1 1988-98 C1500 front and rear coilover conversion systems are a great upgrade to your C1500 suspension. Each kit comes with QA1's proven adjustable coilover shocks—so you can change the valving to meet your specific needs—along with a variety of spring rate options. These shocks allow for ride height adjustability and are 100 percent dyno-tested and serialized. The QA1 C1500 front control arms and rear torque arms are manufactured from 12-gauge HSLA steel tubing for increased strength and are powdercoated for long lasting durability. Topped off with performance ball joints and low-friction, maintenance-free bushings. Complete with adjustable instant center, panhard bar, and pinion angle to allow you to adjust the system to your exact needs. This kit will add more stability and allows for optimum camber adjustment in a lowered truck. Easily bolt in this system--no welding or bed removal required. Everything needed is included, all the way down to the hardware.
Not Yet Reviewed
$6,547.95
Detroit Speed offers Fox Body short long arm conversion systems for a variety of applications, including many Ford Mustang and Mercury Capri models from the 1970s, '80s, and '90s. These suspension kits redefine Fox Body handling with a no-compromise double wishbone design. They system replace the outdated factory suspension with modern geometry, increased strength, and race-proven adjustability—delivering premium fit, finish, and performance. * SUPERIOR SUSPENSION GEOMETRY and STABILITY: Detroit Speed's exclusive frame rail insert optimizes camber gain and roll center height, significantly improving front-end stability. The tubular upper and lower control arms reduce deflection, providing precise suspension movement and sharper handling response. * FORGED UPRIGHTS & EXPANDED BRAKE OPTIONS: Lightweight forged aluminum uprights feature modern hub-pack bearings for durability and reduced maintenance. This setup provides access to high-performance braking solutions for superior stopping power. * MAXIMIZED TIRE CLEARANCE: Designed for serious performance applications, these systems allow clearance for 275/35R18 tires on a 10 in. rim while maintaining full steering lock. Whether on the street or track, this setup ensures maximum grip without compromise. * FACTORY COMPATIBILITY, PERFORMANCE UPGRADE: These systems are optimized for factory 1987-93 V8 K-members and aftermarket K-members, ensuring seamless integration into high-performance builds. Some fabrication is required, but the result is a modernized, precision-tuned suspension that outperforms factory limitations. Available versions: * Single-Adjustable Coilover Control (032096-SDS): Detroit Speed/JRi aluminum coilovers offer Detroit Tuned valving for precision damping control with a single adjustment to fine-tune rebound. Combined with a 1 7/16 in. diameter adjustable-rate sway bar, this system delivers unmatched street and track performance. * Double-Adjustable Coilover Control (032096-DDS): Detroit Speed/JRi double-adjustable aluminum coilovers feature Detroit Tuned valving, allowing independent tuning of high and low speed rebound for maximum control. Paired with a 1 7/16 in. adjustable-rate sway bar, this system delivers fully customizable handling for both street and track applications. * Non-Adjustable High Performance Coilover Control (032096DS): Detroit Speed/JRi non-adjustable aluminum coilovers feature Detroit Tuned valving, delivering precision damping. Paired with a 1 7/16 in. diameter sway bar, this system provides optimized handling and stability for both street and track applications. FEATURES AND BENEFITS: • Optimized camber gain and roll center height for better handling stability • Tubular upper and lower control arms improve suspension geometry and reduce deflection • Forged aluminum uprights with modern hub-pack bearings for durability and reduced maintenance • Adjustable 1 7/16 in. diameter sway bar for improved front-end response • Clearance for up to 275/35R18 tires while maintaining full steering lock • Detroit Speed/JRi aluminum coilover shocks for precision damping (options): -- Single-adjustable -- Double-adjustable -- Non-adjustable
Not Yet Reviewed
$5,199.95
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$6,495.95
QA1's handling suspension kits provide a full-vehicle upgrade that fits your needs. Available in three different levels of performance, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. Top performance is the desired goal of many automotive upgrades—precisely what QA1 Level 3 handling suspension kits deliver. Compared with the Level 1 and 2 packages, these heavy-duty assemblies offer additional control components, as well as stiffer springs to maximize your cornering ability and handling. QA1 Level 3 kits are available with or without shocks and struts—giving you the flexibility to obtain the shocks or struts and spring rates you want. Select the kit designed for your vehicle.
Not Yet Reviewed
$6,343.95
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$10,705.95
RideTech 1965-72 Ford complete bolt-on coilover suspension systems deliver the best handling for your classic truck—in a package that you can install yourself with hand tools and a little elbow grease. 1965-1979 FRONT SUSPENSION: * Removes bulky, heavy, poor handling twin I-beam suspension * Bolt-in cradle strengthens the front of the truck while providing structural mounts for front control arms; utilizes substantial "H" style design compared to other "I" style crossmembers. * Superb suspension geometry, built without compromise, vastly superior to adapted salvage yard "Crown-Vic suspension swaps" or "street rod style" / Mustang II front systems with optimized roll centers and anti-dive. * Delrin© bushings on upper and lower control arms provide smooth, squeak-free long life * Upper control arm cross-shaft allows for easy alignment and use of caster slugs * Adjustable steering stop on lower control arm * Utilizes RideTech tall "pin" spindle, which uses "AFX brake kits." Many brake kits (including Wilwood) are dual drilled for 5 x 4.5 in. or 5 x 4.75. lug pattern * Optional "Hub" spindles offer the same geometry improvements as the pin spindles but add the performance and simplicity of late model Mustang hubs and brakes. Includes S550 2015-23 Mustang hubs for maximum strength, consistent braking and reduced maintenance. Compatible with 2015-23 Mustang brake systems, OE and aftermarket (caliper brackets included). Minimum 17 in. wheels. Hubs fit Ford car 5 x 4.5 in. lug pattern and include 14mm studs. * Brake kit for the stock 5 x 5.5″ lug pattern with Ridetech pin spindle are available as well * Increased camber gain with tall spindle, 5-8 degrees caster for improved high-speed stability * 63.5 in. in front width (wheel mount surface to wheel mount surface); provides options for "traditional" offset wheel choices (4 in. narrower than Crown Vic) * Fits 14 in. and larger wheels. If using more than 4.5 in. of backspacing, 18 in. wheels are required * Motor mount "loops" connect cradle to frame rails to reinforce frame * Motor mount options for Modular Ford, Ford FE, and Small Block Ford, Chevy LS / Small Block / Big Block * Front sway bar measures 1.5 in. x .250 wall and provides confident cornering and smooth ride * Adjustable bump stops * Rack and pinion steering conversion with 15.5 in. center to center bushing mounts for 1979-93 Mustang-style steering rack * Includes billet adjustable tie rods * Bump steer has been virtually eliminated * Adaptable to stock steering column using kit 12319505; includes column adapter, U-Joint and shaft. * High-quality satin black powdercoat finish * Entire system saves approximately 130 lbs. from the front of the truck Rear 4-LINK SUSPENSION: * Removes factory leaf spring suspension and bracketry * Complete parallel 4-link with panhard and C-notches * Works with coilover or Shockwave air suspension * Includes R-Joints on all links for smooth, bind-free, quiet operation and long life * Optimized roll center and anti-squat (60 percent anti-dive) for amazing traction and elimination of wheel hop * High-quality satin black powdercoat finish * Reduces rear weight by 50 lbs. * 1965-1972: No bed modification needed * 1973-1979: Slight bed support rail modification needed (not visible from the top side of the truck * Compatible with short bed and long bed trucks * Adjustable coilover suspension system
Not Yet Reviewed
$8,610.00
Build your project exactly how you want with QA1 Level 2 Big Wheel kits! Get the perfect look by easily adjusting your ride height with front and rear coilovers. Raise or lower your car 2 in. the front. Raise it up to 2 in. or lower it by up to 3 in. in the rear. QA1 Level 2 Big Wheel kits allow you to dial-in the exact style you want in minutes with the included spanner wrench. These complete bolt-on suspension kits are designed to fit up to 28 in. wheels on your vehicle and include everything needed to get your Box sitting right, while giving you a better ride and improved handling. Product features and benefits: * Double-adjustable coilovers give you the ability to individually tune your shock compression and rebound to get the perfect ride and get more grip off the line for drag racing * Adjustable upper and lower trailing arms allow your wheel and tire package to fit with adjustable trailing arms that center your rear axle in the wheel well to gain more clearance for up to 28 in. wheels * Tubular control arms are much lighter and stronger than stock and will upgrade front-end geometry for better drivability—and are designed specifically for big wheel cars with corrected suspension angles for large wheels and tires * Tubular sway bars help reduce body roll and improve stability with front and rear sway bars to reduce handling issues that come from big wheels and raised ride heights * Easy, bolt-in installation * Parts come powdercoated and ready-to-install with all necessary hardware to allow you to bolt up the kit right in your garage or work with your local shop * Works with original factory rear axle housings or Quick Performance 9 in. rear axle housings
( 2 )
$5,364.95
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$5,371.95
QA1 Level 3 Big Wheel kits are complete bolt-on suspension systems with control arms and sway bars to give your GM B-body or G-body the ideal stance, plus maximum performance with QA1 MOD Series shocks. The front and rear MOD Series adjustable Pro Coil coilovers offer maximum shock tunability with high- and low-speed valving adjustability. Perfect for the street or drag racing, MOD Series shocks are for those looking to get the most out of their car. QA1 Level 3 Big Wheel kits also include control arms, trailing arms, and sway bars for a complete bolt-on suspension system. The components are powdercoated and ready to install with the necessary hardware, making your installation hassle-free. Choose the kit designed for your vehicle. Features and benefits: * Front and rear MOD Series Pro Coil system * Pro Touring upper control arms and Street lower control arms upgrade your front-end geometry for better drivability * Control arms are designed specifically for big wheel cars with corrected suspension angles for large wheels and tires * Adjustable lower and upper trailing arms center your rear axle in the wheel well, granting more clearance for larger wheels * Front and rear sway bars reduce body roll and improve stability, and help reduce handling issues that come from big wheels and raised ride heights * Tie rod adjuster sleeves * Spanner wrench * Canister mount
Not Yet Reviewed
$7,703.95
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$7,755.95
Roadster Shop SPEC chassis kits offer Roadster Shop quality at an affordable price point. The SPEC Series is an engineering-focused approach, using the latest in manufacturing technology, to build the lightest, strongest, and easiest-to-install complete chassis systems. These technologies have been used to streamline procedures resulting in lower cost and shorter lead times. The SPEC independent front suspension is engineered to deliver outstanding performance in a user friendly package. It features proprietary suspension geometry designed to provide the best balance of ride quality and performance in its class. Available as On-The-Shelf, pre-configured chassis or custom specifications to suit your needs. Features and benefits of Roadster Shop SPEC chassis kits include: * Full-chassis performance at a smaller component price * Unparalleled quality * Add the strength of a full frame with no floor modifications on most applications * CNC laser-cut, TIG-welded, and contoured "Laser Rails" frame rails * No kinks, bends, or stressed areas that are prone to flex like mandrel-bent tubing * Stronger, lighter, and more precise * CNC-located factory mounts built into the frame for easy, vehicle specific installation * Frame rails accommodate mini-tubs and wider wheels * Aggressive ride heights for the modern pro-touring look * Choice of coilover or air suspension for many applications * Air suspension chassis will lay the rockers on the ground (varies with tire size) * Truck rear frame rail kick ups engineered for minimal bed modifications while allowing rockers to lie on the ground * Crossmembers and chassis bracing allow 3 in. exhaust * Adjustable, drop-out transmission mounts (tunnel mods may be necessary for larger T-56 and 4L80 transmissions) * Vehicle specific body (cab and bed on trucks), bumper, and core support mounts * Single-adjustable billet coilovers * Power rack and pinion steering * Easy-to-adjust upper A-arm eccentric mounts for fast and accurate alignments * Wilwood Pro Spindles * Parallel 4-bar rear suspension * Ford 9 in. housing with 31 spline axles * Optional mounts, coilovers, sway bars, brake packages, and rear-end gearing available on custom-order chassis * 5 x 4.75 wheel bolt pattern * Frames are shipped as bare steel
( 14 )
$20,375.99
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$20,649.99
Detroit Speed SpeedMAX front suspension packages are designed with no compromises and exclusive DSE suspension geometry for superior handing and ride quality at a lowered ride height. These kits are 100 percent bolt-on front suspension systems, based on the later model GMT800 Silverado truck applications. Kits include DSE forged aluminum uprights with modern truck hub pack wheel bearings. These kits can be installed in stock location or 1 in. forward for improved wheel and fender alignment. the DSE "Detroit Tuned" aluminum body coilover shocks and springs allow for ride height adjustment and spring rate tuning without having to disassemble the control arms. Body panels and engine do not need to be removed for installation of these SpeedMAX suspension kits. Additional product details: * Packages are offered with single adjustable, double-adjustable, or non-adjustable shocks (please specify application needed when ordering) * Body panels and engine do not need to be removed for installation * Features "Detroit Tuned" GMT800 rack and pinion steering * Includes sway bar with improved design/rate over optional factory bar using polyurethane bushings and low friction modern aluminum end links (uses tubular upper and lower control arms with Delrin bushings that are designed for trucks) *Features ADI (Austempered Ductile Iron) upper shock bracket that uses a heat-treated, high strength cast iron for fatigue strength and wear resistance * Stainless steel upper control arm cross shafts feature caster tuner bushings
Not Yet Reviewed
$6,892.95
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
( 1 )
$5,500.95
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
( 3 )
$5,500.95
RideTech Corvette coilover suspension systems include MuscleBar sway bars, Delrin control arm bushings, and powdercoated conversion brackets. The 100 percent bolt-on kit will significantly improve your Corvette's handling, while giving you control over ride-height adjustment. RideTech engineers custom-tailored the system's HQ Series shock absorber valving for modern, world-class ride quality. Rebound adjustment knobs help you fine-tune ride and handling to your driving style and tire selection. For the ultimate track experience, upgrade to the TQ Series coilovers with a remote reservoir for high and low speed compression adjustments. RideTech's CNC-bent MuscleBar sway bars increase bar rate over stock, allowing for more comfortable, compliant coil spring rates. MuscleBars feature investment cast bar ends that perfectly engage end-link bushings as your Corvette's cornering loads change. Delrin-lined mounting bushings never squeak or need lubricating. The same is true for the kit's Delrin A-arm bushings. Overall, the C4 Corvette coilover conversion systems offer tremendous bang for the buck with real-world improvements. They're a game changer for the C4 Corvette platform. (Included shock absorbers carry a 1,000,001 mile warranty.)
Not Yet Reviewed
$7,770.00
Looking for a better launch, straight-line stability, and consistent performance? Turn to QA1's drag racing suspension kits for a full-vehicle upgrade that fits your needs. Available in three different levels of performance, these drag racing kits offer easy, bolt-in installation (some welding may be needed) and seamlessly works with whatever OE component each piece attaches to. And with different levels, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. QA1 Level 2 drag racing kits are ideal for owners looking for serious performance gains at the track. They deliver everything needed in one shot, taking the guesswork out of the process, so you can skip the research and focus on preparing for your next race. Select the kit designed for your drag race car.
Not Yet Reviewed
$6,026.95
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$8,208.95
QA1 Level 3 Drag Racing suspension kits furnish your vehicle with the ability for a better launch, straight-line stability, and consistent performance. These kits utilize high-quality parts engineered together as a system to take the guesswork out of choosing the right pieces to support your performance goals. Many feature QA1's MOD Series front drag suspension kit or MOD Series front or front and rear Pro Coil system matched with Drag Race control arms and additional components to equip your vehicle with race-winning performance. Choose the kit designed for your vehicle.
Not Yet Reviewed
$6,078.95
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$10,332.95
Variant 3 coilover kits from KW Suspensions feature state-of-the-art technology to customize your ride's stance and look sharp. These coilover systems are designed with shorter INOX-Line stainless steel strut housings for more spring travel, anodized aluminum spring collars for durability, and high-tensile racing springs for strong support and comfort. Their separate and independent compression and rebound damping options allow for a truly individual driving setup. Order the kit recommended for your vehicle.
Not Yet Reviewed
$5,334.00
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