A top-tier 1967 Impala SS 427 commands prices between $70,000 and $130,000 on the open collector market, depending heavily on documentation, originality, and drivetrain specification. While standard small-block Impalas trade for modest sums, the rare RPO Z24 big-block package turns this full-sized fastback into a blue-chip muscle car asset.
Values shift based on whether the car features a numbers-matching L36 385-horsepower V8, a desirable four-speed manual transmission, and factory options like power steering and disc brakes. Understanding these pricing tiers helps buyers and sellers navigate valuations accurately without relying on inflated guesswork.
The RPO Z24 Package and Production Rarities
Chevrolet introduced the Z24 option code in 1967 specifically to give the full-sized Super Sport a serious performance identity. Out of tens of thousands of Impalas built that year, only about 2,147 buyers checked the box for the SS 427 package. This exclusivity drives contemporary market demand.
The package included more than just a massive engine badge. It brought stiffer suspension components, specialized fender badging, a hood with distinctive chrome vents, and dual exhaust systems. Finding an example that retains these factory-correct components significantly impacts its market ceiling.
Current Market Valuation Tiers
Collector car valuations depend on the overall condition and structural integrity of the vehicle. Because replacement sheet metal and full restorations cost small fortunes, buyers pay top dollar for rust-free original metal.
- Concours and Perfect Condition: Vehicles scoring 95 points or higher at national judged events regularly breach $110,000 to $130,000. These cars feature factory-correct finishes, flawless chrome, and verified documentation.
- Excellent Street Condition: Well-maintained drivers or older professional restorations trade between $70,000 and $95,000. They present cleanly, run reliably, and require zero immediate mechanical intervention.
- Good Project or Driver Quality: Cars requiring minor cosmetic work, interior refresh, or mechanical sorting typically command $40,000 to $65,000.
- Rough Projects: Vehicles needing complete floor pan replacement, rust repair, and engine rebuilding can still fetch $20,000 to $35,000 purely due to the rarity of the Z24 identification tags.
You can review broader market trends and historical auction benchmarks directly through Hagerty Valuation Tools.
Key Factors Driving Price Variations
Price tags don't fluctuate randomly. Specific mechanical and historical markers dictate whether an SS 427 brings top dollar or sits unsold in the classifieds.
Transmission and Drivetrain Choices
Most SS 427 models left the factory with a Turbo Hydra-Matic automatic transmission. Examples equipped with a heavy-duty Muncie four-speed manual shifter are exceptionally scarce and carry a massive premium among purists. A four-speed setup can easily add 20 to 30 percent to the final transaction price.
Documentation and Provenance
Paperwork rules the classic market. Cars backed by original build sheets, dealer invoices, tank stickers, and comprehensive past ownership histories command immediate attention. A verified VIN sequence confirming a true Z24 car prevents buyers from walking away due to clone anxiety.
Color Combinations
Factory color codes matter deeply. Rare factory paint codes paired with matching interior vinyl or bucket-seat configurations elevate collector interest. Original black,Marina Blue, or Granada Gold cars with contrasting interiors often outperform common monotone builds.
Common Mistakes When Buying or Selling
Navigating high-dollar classic transactions requires vigilance. Avoiding common pitfalls saves thousands of dollars in hidden costs.
- Failing to Verify the Protect-O-Plate: Many standard Impalas receive aftermarket badges and big-block swaps. Always verify the VIN prefix and engine pad stamp against factory registries.
- Ignoring Hidden Frame Rust: Full-sized Chevrolet frames rust from the inside out, particularly around the rear kick-ups. Surface shine means nothing if the structural frame requires professional replacement.
- Overvaluing Restomod Modifications: While modern upgrades like air conditioning or fuel injection make the car easier to drive, heavy modifications often reduce the value for traditional purists who demand factory correctness.
You can explore detailed model breakdowns and historical production specs via Conceptcarz to cross-reference serial numbers and option sheets.
Frequently Asked Questions
How many 1967 Impala SS 427 models were built?
Chevrolet produced roughly 2,147 units of the Z24 Super Sport 427 package for the 1967 model year, making it far scarcer than contemporary mid-sized muscle cars.
Is the 427 engine in this car a Tri-Power setup?
No. The standard engine for the 1967 SS 427 was the L36 single four-barrel big block rated at 385 horsepower. The legendary L72 Tri-Power setup was restricted to Corvettes and full-size passenger cars built later or through specific fleet channels, making standard 1967 SS 427s single-carburetor variants.
How do I verify a true SS 427 from a clone?
Check the vehicle identification number and trim tag. For 1967, Impala SS models feature style number 68 in the VIN (e.g., 16867 or 16837), and genuine Z24 cars feature distinct engine compartment brackets, heavy-duty suspension tabs, and unique front-fender emblems.
Are these cars safe investments for collectors?
While no automotive asset is guaranteed to appreciate, blue-chip big-block Chevrolets from the late 1960s maintain steady demand because baby boomers and younger collectors alike covet their styling and straight-line power.
