1968-1982 C3 Replacement Chassis

Quick Overview

Street Shop’s C3 chassis is an all new, "mandrel formed", replacement chassis for your 1968-1982 Corvette, designed to fit under the stock floor-pan. Street Shop’s C4-based chassis utilizes 1989-96 Corvette suspension components and basic suspension geometry in the Front and Rear, whereas the Street Shop C7 based chassis utilizes 2014-current Corvette suspension components. Both chassis/suspension combinations are a drastic improvement in handling and braking capability. Designed around the car's original features, this chassis allows you to "bolt on" your original body with NO modification to your C3 Corvette body*.
*C7 based chassis requires raising rear floor app. 4” and widening rear inner fender wells (replacement floor section available inquire).


The process of mandrel bending our 4"x2"x0.120" wall steel tubing maintains the dimension of the tubing, thereby providing the maximum amount of strength from the finished frame rail. These one-piece, formed rectangular rails are very rigid and lightweight. The end result is a frame that weighs slightly less than the original, but also one that resists the twisting and flexing common to these cars.


All chassis are finished in durable semi-gloss black powder coating and feature stock mounting for the bumpers and body. Engine and transmission mounts, which are capable of many engine / transmission combinations, are vertical mount style with a removable transmission cross member. Engine location is lower than stock to enhance handling by achieving a lower center of gravity. Coil-over shocks are used at each wheel and provide a completely adjustable ride, while a power rack and pinion steering unit is included for quick and responsive steering.


Also Available From Street Shop



C5/C6 Chassis for your 1953-1982 Corvette

1968-1982 C3 Replacement Chassis1968-1982 C3 Replacement Chassis
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1968-1982 C3 Replacement Chassis 1968-1982 C3 Replacement Chassis 1968-1982 C3 Replacement Chassis 1968-1982 C3 Replacement Chassis

Details

Standard Bare Frame Specifications:

  • 4" x 2" x 0.120" Mandrel bent tubing.
  • Powder coat finish in semi-gloss black.
  • CAD designed, CNC cut components
  • C4 Chassis features Mounts for 1989-1996 Corvette suspension front & rear.
  • C4 Chassis’ near Stock track width and allows for use of Vintage style wheels.
  • C7 Chassis features Mounts for 2014-current Corvette Suspension front & rear.
  • C7 Chassis uses C7 Z06/Z07 Corvette Wheel Specifications.
  • C7 Chassis includes Custom Rear Cradle and Billet Rear Cover for HHD Differential Housing
  • Mounts for front and rear bumpers using stock brackets.
  • Engine & transmission mounts in factory locations.
  • Removable transmission cross member.
  • Clutch pivot bracket in stock location.
  • Mounts for stock core support.
  • Body mounts in stock locations.
  • Body mounts in positions #2 & #3 feature captured nuts as originals.
  • Accepts stock gas tank support and gas tank.
  • Mounts for factory spare tire carrier (spare tire must be modified for clearance).
  • Customer Supplied C4 Rear suspension modifications at no additional cost!
  • C4 chassis Bolt-on without cutting fiberglass!

Standard Chassis Kit Components & Specifications:
Welded Chassis with stock mounting locations for Body, Bumper, engine mounts and Removable transmission Cross member, Powder Coated Semi-gloss Black (Other Colors Available at additional c

  • DSE Power Rack & Pinion w/ New Tie Rod Ends
  • New 1" Front Sway Bar w/ Urethane Bushings & Billet End links (C4, C7 uses OE)
  • Steering Shaft Adapter, DSE Rack to Corvette Column
  • QA1 Aluminum Coil-Over Shocks, Single Adjustable, with HyperCo springs, Front and rear
  • Stainless Steel Brake System w/ Stainless Braided Hoses
  • Billet Aluminum Adjustable Camber Bar, pr.
  • Grade 8 or equivalent fastener kit

Available Options & Accessories:

  • Powder coat calipers.
  • Hydroboost hydraulic brake booster systems.
  • Street Shop, Inc.’s C4 based 5 link Rear suspension. Featuring our exclusive HammerHead 12 bolt based aluminum Differential Housing (avail. with 30, 33 or 35 spline posi-traction carriers), Billet Rear Cover and Billet control arms, Camber bars and toe assembly.
  • Vintage Air systems for original A/C and non-A/C Corvettes ('58-'77)
  • Custom wheels from American Racing, Budnik, Billet Specialties CCW, and many more.
  • Most brands of tires available.
  • Multiple rear gear ratios available.
  • Offset rear sway bar
  • Flaming River Steering columns, tilt 63-69.
  • LS engine Harness Kits from GMPP.
  • LS engine drive accessory package with A/C, power steering, 140 amp alternator, and billet brackets. 
  • Billet Lower Coil-Over Mount, pr, Rear (63-82 C4 Chassis Only)
  • 89-96 Corvette Front Suspension, Used; Cleaned & Rebuilt
  • Stainless Steel Fuel Line w/ AN Fittings
  • Stainless Steel Fuel Return Line w/ AN Fittings for EFI
  • LS Fuel Single Line Fuel System w/ SS Line, Return-Style Filter, Flexible Fuel Lines Using OEM Connectors From Engine to Fuel Tank
  • Rebuilt Calipers w/ New Brake pads, Includes Mounting Brackets
  • New PBR (OEM) Calipers for C4 13” Front Rotors and Street Shop’s Exclusive C4 to C5/6 Rear Brake Conversion
  • New OEM-style Rotors, Complete Set of Four
  • Drilled And Slotted Performance Rotor Kit w/ 13" Front, Complete Set of four
  • Wilwood 6-Piston Front Calipers and Wilwood 4-Piston Rear Calipers for Stock-type Rotors and PolyMatrix Brake Pads, Powdercoated Black (Add $120 for Red Powdercoat)
  • American Racing Torq Thrust II Wheels (Polished or Grey Spokes) and Tires (17x7 w/235/45/17 on C1, 17x8 on C2 w/ 245/45/17 & C3 w/ 255/45/17)
  • Lokar Universal Parking Brake Cable Kit w/ Corvette Clevis
  • DeWitt’s Aluminum Radiators, Dual 1.25" core with Electric fan/shroud installed
  • Prothane Urethane Body Mount Kits for C2 and C3
  • Rock Valley Stainless Steel Fuel Tanks
  • GM Performance Parts Crate Engines
  • American Powertrain  5spd (6spd kits available for C1 and C3) Tremec Transmission Conversions

Feature Cars Using This Chassis

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