C4 Corvette Replacement Tops (1984–1996): Fiberglass & Transparent Roof Panels by Year Design
The C4 Corvette (1984–1996) introduced the targa-top look that became a Corvette trademark — but because GM revised the roof design multiple times over the years, fitment accuracy is critical. These new replacement fiberglass and transparent tops are built to precise year-specific dimensions to ensure the perfect seal and latch alignment your car deserves.
Below, you’ll find every option for first-, second-, and third-design C4 Corvettes, including both solid fiberglass and transparent hard-coated acrylic tops.
Before you shop: your Corvette does not identify its roof design anywhere on the car, and the model year alone will not tell you. Skip to Choosing the Correct C4 Roof Design first — it takes about a minute and it is the difference between a roof that seals and a freight bill in both directions.
🧱 Fiberglass Replacement Roof Panels (GM Performance Spec)
All fiberglass roofs arrive complete with new headliner, premium weatherstripping, and GM hardware installed. Each panel ships in black gel coat, ready for sanding, priming, and paint. These are perfect for owners who prefer a cooler, UV-blocking solid roof.
C4 Corvette 1984–Early 1986 — 1st Design Paintable Fiberglass Roof Panel
Highlights:
- New gel-coated fiberglass panel, ready for prime and paint
- New GM frame and hardware
- Year-specific fitment for 1984, 1985, and early 1986 Corvettes
- OEM powder-coated steel edge trim (rubber trim option included)
- New reproduction latex weatherstrip
- No core charge
- 12-month warranty against defects in material or workmanship
- Made in the USA
Customization Options:
- Ships with rubber edge trim (install after paint).
- Optional steel trim surround available for OE-style restoration.
Assembly Option:
Request assembly by the manufacturer at no extra charge — simply note it on your order.
Don’t forget the wrench. The 1984–early 1986 roof uses front locating cones, and a thin 1-1/8" installation wrench is needed to lock them down with the roof in place. You can add it right on the product page — no need to hunt for it separately.
C4 Corvette Late 1986–1988 — 2nd Design Paintable Fiberglass Roof Panel
Same premium construction as the early version, built to the revised late 1986–1988 bolt spacing.
Highlights:
- New gel-coated fiberglass panel with GM frame and hardware
- Year-specific fit for late 1986, 1987, and 1988 Corvettes
- OEM powder-coated steel trim (or optional rubber surround)
- Reproduction factory-equivalent weatherstrip
- No core exchange required
- 12-month warranty against defects in material or workmanship
- Made in the USA
Before ordering:
Measure across the top of the windshield frame to the center of each mounting bolt hole to confirm your design generation — the 2nd design measures 31.5".
C4 Corvette 1989–1996 — 3rd Design Paintable Fiberglass Roof Panel
This late-design panel covers the longest production run in the C4 lineup. It fits all 1989–1996 models, offering the same durable construction and OEM-correct hardware.
Highlights:
- New fiberglass panel, gel-coated and paint-ready
- GM frame and hardware included
- Powder-coated steel edge trim (or optional rubber trim)
- Premium latex weatherstrip
- No core charge
- 12-month warranty against defects in material or workmanship
- Made in the USA
💎 Transparent Roof Panels (GM Restoration Parts)
For owners who prefer that open-air, light-filled cabin experience, these transparent C4 targa tops are manufactured by a GM-licensed distributor and built to precise year-specific specs. Each features a Super Abrasion Resistant (SAR) hard-coated lens in your choice of factory blue or smoked bronze tint privacy glass.
Note that GM only ever offered these two tints on the C4, and both appear black from outside the car. There was never a factory grey option.
C4 Corvette 1984–Early 1986 — 1st Design Transparent Roof (GM Restoration Part)
Features:
- Factory blue or smoked bronze tint (privacy glass)
- New SAR hard-coated acrylic lens
- New frame & hardware
- OEM powder-coated steel trim
- New weatherstripping installed
- DOT-approved markings
- No core charge or exchange required
- 12-month warranty against defects in material or workmanship
- Made in the USA
Fitment: 1984, 1985, and early 1986 Corvettes
Why choose it:
Avoid the fitment headaches of retrofit kits — these are true early-year replacements, built to the original 1984–early 1986 bolt spacing.
C4 Corvette Late 1986–1988 — 2nd Design Transparent Roof (GM Restoration Part)
Features:
- Available in factory blue or smoked bronze tint
- Super Abrasion Resistant (SAR) hard-coated acrylic lens
- New GM-licensed frame and hardware
- Correct year-specific dimensions
- OEM powder-coated steel trim
- New latex weatherstripping
- DOT-approved
- No core charge
- 12-month warranty against defects in material or workmanship
- USA made
Fitment: Late 1986, 1987, and 1988 Corvettes
C4 Corvette 1989–1996 — 3rd Design Transparent Roof (GM Restoration Part)
Features:
- Factory blue or smoked bronze tint privacy glass
- New SAR hard-coated acrylic lens
- New GM-licensed frame (89–96)
- OEM powder-coated steel edge trim
- New weatherstripping included
- DOT-approved
- No core charge
- 12-month warranty against defects in material or workmanship
- Made in the USA
Fitment: 1989, 1990, 1991, 1992, 1993, 1994, 1995, and 1996 Corvettes
Why choose it:
Perfect OEM restoration option with modern durability and optical clarity that exceeds original GM panels.
🧰 Choosing the Correct C4 Roof Design
Your car will not tell you which design it has. There is no badge, sticker, or VIN digit that identifies the roof generation, and the model year is not reliable either — GM sold a conversion kit for years that put 3rd-design 1989–1996 roofs onto 1984–1988 cars. Plenty of them are still out there. Always verify the roof that is actually on the car.
There are two ways to check, and either one takes about a minute.
Method 1: Measure the bolt spacing
Measure across the top of the windshield frame from bolt to bolt, on center. If the roof is on the car, you can also measure hole to hole from the inside.
| Roof Design | Years | Bolt-to-Bolt (O.C.) |
|---|---|---|
| 1st Design | 1984–Early 1986 | 28.5" |
| 2nd Design | Late 1986–1988 | 31.5" |
| 3rd Design | 1989–1996 | 32.5" |
Method 2: Identify the front mounting hardware
If you have the roof off the car, look at the front mounting hardware attached to the inside front of the roof panel frame:
- 1st Design (1984–early 1986): a cone-shaped locating pin
- 2nd Design (late 1986–1988): an oblong plate with a raised hump in the middle
- 3rd Design (1989–1996): a triangle-shaped plate
Still not sure? Email help@corvettestoreonline.com with your year and a photo of your current roof hardware and we’ll confirm before you order.
🧽 Care & Maintenance
- Treat it like your paint job. Never dry-wipe the lens — use a clean, wet microfiber towel, never paper towels.
- Clean transparent tops with non-ammonia glass cleaner and a microfiber towel.
- Wax fiberglass tops regularly for UV protection.
- Avoid harsh solvents or abrasives on hard-coated lenses.
- Store panels on padded roof racks or mounts to prevent warping.
- Inspect latch mechanisms and seals twice yearly.
💬 Frequently Asked Questions
How do I know which roof design I need?
→ Measure bolt to bolt across the top of your windshield frame — 28.5", 31.5", or 32.5" — or compare your front mounting hardware to the descriptions above. Do not go by model year alone.
My car is a 1987, so I need the 2nd design, right?
→ Probably, but check anyway. GM sold a kit that converted 1984–1988 cars to the 3rd-design roof, so a later roof on an earlier car is common.
Can I upgrade from a fiberglass top to transparent?
→ Yes, as long as the design generation matches the roof currently on your car.
Do I need to send in a core?
→ No, all C4 tops ship brand new with no core exchange required.
Did GM offer a grey tint for the C4?
→ No. Only blue and smoked bronze were ever offered, and both look black from outside the car.
Are these GM-approved parts?
→ Yes — transparent versions are GM-licensed restoration parts, and all fiberglass versions use new GM frames and hardware.
Can the manufacturer assemble my top before shipping?
→ Yes! Just note your preference in the order comments. Assembly is offered at no additional charge.
What warranty comes with these tops?
→ Twelve months from the date of shipment, covering defective material or workmanship. Wearables such as weatherstripping are excluded. A product determined to be defective is replaced in whole or in part at the manufacturer’s discretion; labor costs and other damage claims are not covered. Contact us for written authorization before returning anything.
Is a signature required on delivery?
→ Yes. These ship signature-required by default, so plan for someone to be available when your roof arrives.
What if I need to return the top?
→ Melrose replacement tops are subject to a 10% restocking fee. Original shipping charges and Route protection are not refundable.
🔧 Technical Summary
| Design | Years | Bolt Spacing | Front Hardware | Type | Tint Options | Core Charge | Origin |
|---|---|---|---|---|---|---|---|
| 1st Design | 1984–Early 1986 | 28.5" | Cone | Fiberglass / Transparent | Blue / Smoked Bronze | None | USA |
| 2nd Design | Late 1986–1988 | 31.5" | Oblong plate with hump | Fiberglass / Transparent | Blue / Smoked Bronze | None | USA |
| 3rd Design | 1989–1996 | 32.5" | Triangle plate | Fiberglass / Transparent | Blue / Smoked Bronze | None | USA |
🏎️ Restore Your C4 with OEM-Correct Precision
Whether you prefer the cool, insulated comfort of a solid fiberglass panel or the bright, classic look of blue or bronze transparent glass, these year-specific replacement roofs bring your C4 back to its factory glory. Built on GM-licensed frames, finished with new hardware and weatherstripping, and made right here in the USA — these tops combine originality and craftsmanship like nothing else.
Shop C4 replacement tops at CorvetteStoreOnline.com and keep your fourth-generation Corvette road-ready and period-perfect.