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1973 Parts and Accessories
Heidts 1970-74 Mopar Challenger and Barracuda PRO-G Independent Front Suspension Kits
Heidts 1970-74 Mopar Challenger and Barracuda PRO-G independent front suspension kits are a comprehensive, bolt-in upgrade designed to replace the stock factory torsion bar suspension with a modern, high-performance, double A-arm front suspension system. Specifically engineered for 1970-1974 E-body vehicles, these kits improve handling and cornering using adjustable coilovers, rack-and-pinion steering, and Wilwood brakes. Key features: * Complete system: Hub-to-hub kit includes a new crossmember, tubular control arms, spindles, and power rack-and-pinion steering * Performance upgrades: Features QA1 adjustable coilover shocks and springs for height and ride tuning * Improved geometry: Designed to eliminate bump steer and allow for significant caster and camber adjustments * Braking: Comes standard with 11 in. Wilwood rotors and 4-piston calipers * Engine fitment: Accommodates Mopar small block, big block, and Gen 3 Hemi engines, usually requiring a rear-sump oil pan * The kit is tailored to bring modern handling capabilities to classic Mopar muscle cars, reducing unsprung weight and increasing overall torsional rigidity
Not Yet Reviewed
$7,623.00
Crower Lightweight Crankshafts
Crankshafts are the most critical part of your engine's performance. Crower lightweight crankshafts help to provide the best possible performance for your application, matching your head and valvetrain components to perfection. They are made of forged 4340 steel for superior performance and are available with internal and external balance. Crower lightweight crankshafts have numerous designs to meet anyone's needs, whether it's a smooth, lower lift rate for higher rpm and more durability, needing less spring pressure and less valvetrain modification, or a higher lift rate for less rpm with more spring pressure and lighter valvetrain components, providing the explosive power typically needed in race applications. So, if you're looking for a high performance crankshaft and want nothing but the best, these Crower lightweight crankshafts are your answer.
Not Yet Reviewed
$5,819.99
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$6,287.99
Crower Billet Crankshafts
Crower billet crankshafts offer premium quality at not-so-premium prices. Crower manufactures these from milled round bars to produce steel billet crankshafts for just about any engine make and horsepower needs. Premium materials--either billet 4340 chromoly or EN30B steel--are used to create their cranks. They are precision CNC-machined on state-of-the-art equipment by master craftsmen for precise indexing and throw-to-throw consistency. Choose a better made billet crankshaft from Crower and choose peace of mind.
Not Yet Reviewed
$6,287.99
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$7,736.99
Crower Enduro Crankshafts
These Crower Enduro crankshafts will handle the horsepower of today's engines. They feature a 4340 NT forging, straight shot oiling, jumbo 1/8 in. radii, and a counterweighted correct design. The heat treating of the Crower Enduro crankshafts makes them stronger and more reliable throughout the entire rpm range. Available in your choice of 2 or 4 lightened holes, Crower Enduro crankshafts are an excellent foundation for your performance engine.
Not Yet Reviewed
$5,506.99
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$5,757.99
Crower Maxi-Light Crankshafts
Crankshafts are the most critical part of your engine's performance. Crower Maxi-Light crankshafts help to provide the best possible performance for your application, matching your head and valvetrain components to perfection. They are made of forged 4340 steel for superior performance and are available with internal and external balance. These crankshafts have numerous designs to meet anyone's needs, whether it's a smooth, lower lift rate for higher rpm and more durability, needing less spring pressure and less valvetrain modification, or a higher lift rate for less rpm with more spring pressure and lighter valvetrain components, providing the explosive power typically needed in race applications. So, if you're looking for a high performance crankshaft and want nothing bur the best, Crower Maxi-Light crankshafts are your answer.
Not Yet Reviewed
$6,203.99
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$6,633.99
Crower Standard Series Crankshafts
Crankshafts are the most critical part of your engine's performance. Crower Standard Series crankshafts help to provide the best possible performance for your application, matching your head and valvetrain components to perfection. Made of forged 4340 steel for superior performance, they are available with internal and external balance. These crankshafts have numerous designs to meet anyone's needs, whether it's a smooth, lower lift rate for higher rpm and more durability, needing less spring pressure and less valvetrain modification, or a higher lift rate for less rpm with more spring pressure and lighter valvetrain components, providing the explosive power typically needed in race applications. So, if you're looking for a high performance crankshaft and want nothing but the best, these Crower Standard Series crankshafts are your answer.
Not Yet Reviewed
$5,131.99
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$5,876.99
Crower Ultra Light Crankshafts
Crankshafts are the most critical part of your engine's performance. Crower Ultra Light crankshafts help to provide the best possible performance for your application, matching your head and valvetrain components to perfection. They are made of forged 4340 steel for superior performance and are available with internal and external balance. Crower Ultra Light crankshafts have numerous designs to meet anyone's needs, whether it's a smooth, lower lift rate for higher rpm and more durability, needing less spring pressure and less valvetrain modification, or a higher lift rate for less rpm with more spring pressure and lighter valvetrain components, providing the explosive power typically needed in race applications. So, if you're looking for a high performance crankshaft and want nothing bur the best, these Crower Ultra Light crankshafts are your answer.
Not Yet Reviewed
$5,743.99
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$6,619.99
Crower Ultra Light Forged Steel Crankshafts
These Crower Ultra Light forged steel crankshafts are precision-machined from premium 4340 NT forgings with ultra-light profiling, pendulum undercutting, center counterweight removal, four lightning holes, and radius edges. The smaller outside diameter quickens throttle response, reduces stress and wear, creates less drag in oil, and increases horsepower and torque. Crower Ultra Light forged steel crankshafts are built to order; please specify the required length and main journal size when ordering.
Not Yet Reviewed
$6,836.99
Speedtech Performance USA ExtReme Front Suspension Packages
Upgrade your front suspension with the Speedtech Performance USA ExtReme subframe featuring forged spindles. These packages are designed to handle all driving conditions with ease—ideal for daily driving, autocross, and track days. The box welded construction and tabbed through frame gusseting provide added torsional rigidity, while the fully adjustable wheel alignment and corrected Ackerman for better grip during cornering facilitate a customizable driving experience. The kit includes custom designed upper and lower control arms, a durable Sweet Mfg. dual power rack and pinion steering, QA1 custom valved single adjustable coilover shocks, and a splined front sway bar with spring rate options. The exclusive ExtReme forged spindles offer optimized geometry and improved KPI/SAI angles, providing increased tire grip and a more precise driving experience. Order the front suspension package recommended for your vehicle. ExtReme Front Subframe Includes: * Full ExtReme subframe * Custom designed upper and lower control arms with high clearance to accommodate wide wheels * Durable Sweet Mfg. dual power rack and pinion steering * QA1 custom valved single adjustable coil over shocks, spring rates of your choice included * Tuned, adjustable, splined front sway bar with spring rate options for street, pro-touring/auto cross and road course * Exclusive ExtReme forged spindles with C7 hubs and maintenance free sealed bearing * Fully adjustable transmission crossmember that will accommodate all engine and transmission combinations ExtReme Front Subframe Features and Benefits: * Boxed construction welded with tabbed through frame and crossmembers for added torsion rigidity * Speedtech Performance chassis and subframes come exclusively with forged 7075 aluminum ExtReme spindles * 78 percent motion ratio for faster shock response and more precise control * Increased shock length providing more suspension travel * Virtually zero bump steer, .005" over the full travel of the system * 30 +/- 3 degree of steering angle * Exclusive system provides optimum Ackerman for up to 20 percent more inside tire grip when cornering * Industry exclusive optimized roll center for low, mid and high travel * 3-piece chromoly tubular splined sway bar standard, optional spring rates * Excellent system for street, autocross and track days * Ride heights to meet your vision for styling the car exactly the way you want it * Accommodates greater than 315/30/18 tire with full steering ExtReme Forged Spindle Features: * Forged from 7075 aircraft-grade aluminum * Optimized geometry unmatched in any other Corvette style spindle * Significantly improved KPI/SAI angle * Requires less caster to achieve maximum tire contact patch * Significantly reduced scrub radius * Billet steering arm provides increased Ackerman angle * Achieves optimum tire slip-angles, increasing front tire grip * Maintains optimum tire grip with less backspaced wheels * Brake caliper bolt pattern is direct carryover from Corvette C5 and C6, opening up many options * Comes standard with a maintenance-free factory GM Corvette C7 hub and sealed bearing * From parking lots to tracks, it simply drives and turns better
Not Yet Reviewed
$9,968.00
Scott's Hot Rods IFS Packages
Scott's Hot Rods IFS packages are the ultimate improvement to the ride quality and handling of your classic vehicle. Starting with a ground-up, clean-sheet design, these independent front suspension kits are custom-fit to your specific chassis. Optimized steering and suspension geometry provide modern handling, while adding the convenience and feedback of rack-and-pinion steering. Designed and fabricated in-house ensures precise, accurate fitment. These IFS packages are available in a wide array of ride heights, suspension options, brake configurations, and even wheel bolt patterns! Features include: * Stock, mild, or low ride height configurations * One-piece, boxed steel crossmember construction * Frame/chassis-specific frame notches and reinforcement plates * Fully adjustable, tubular upper and lower control arms * Oversized serviceable ball joints * Built-in anti-dive geometry * Rack and pinion steering * Forged steel spindles (stock or drop-height options) * Available with Wilwood brake packages in multiple color choices * Available air bag and multi-level coilover suspension options
( 4 )
$5,398.99
Roadster Shop SPEC Chassis Kits
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 )
$13,763.99
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$15,470.99
Heidts Pro-G Rear Suspension Packages
Those of you who want ultra-modern handling in your classic car can now have it with these fully independent Heidts Pro-G rear suspension packages. These high-horsepower independent rear suspension bolt-in packages are designed for almost any car. Heidts Pro-G rear suspension packages are completely bolt-on, requiring no cutting or floor modifications. If you want to take the performance of your hot rod to the highest level, Heidts Pro-G rear suspension packages are the only way to go.
Not Yet Reviewed
$11,039.00
