1992 Corvette guide: the first LT1, traction control, the one-millionth car and 2026 prices

New for 1992: LT1, traction control, Goodyear GS-C tires, plus smaller changes listed in Chevrolet’s ordering sheet and in the Corvette Black Book, a hobby reference whose pages GM reprints in its kit:

• The engine. The LT1 replaced the L98: 300 hp (SAE net) against 1991’s 245 or 250. Synthetic oil was recommended, and the engine oil cooler option was dropped as unnecessary with it.
• Traction control. GM’s Acceleration Slip Regulation (ASR), developed by Bosch with Corvette engineers, went on every 1992, ZR-1 included (see ASR, traction control on every car).
• Tires. Goodyear Eagle GS-C, directional and asymmetrical, “exclusive to Corvettes worldwide for 1992,” on 17 x 9.5 in wheels.
• The dash. All-black faceplates and buttons in place of 1990–1991’s gray-black, the digital speedometer moved up above the fuel gauge, and a new “Check Gages” lamp that lit when the last fuel bar went out.
• Quieter. The ordering sheet lists a “Quiet Car” package of better weatherstrips and belt seals and more door and tunnel insulation, plus new hydraulic engine mounts.
• Outside. Two large rectangular exhaust tips in place of 1991’s four round ones, GM’s July 1992 release says, and “ZR-1” emblems above the ZR-1’s side gills. The upshift light went away.

The body carried over from 1991: 178.6 in long, with the wraparound nose and convex tail that year introduced. The 1990 guide covers the cabin that arrived for 1990 and what 1991 changed.

What 1993 changed. Little, by the Black Book page in GM’s 1993 kit: torque rose from 330 to 340 lb-ft, the ZR-1 went to 405 hp, a 40th Anniversary package in Ruby Red joined the list, and the Corvette became GM’s first car with passive keyless entry. GM’s early planning book had listed that system for 1992, but no 1992 has it.

How much horsepower does a 1992 Corvette have? 300 hp at 5,000 rpm and 330 lb-ft at 4,000, with every gearbox and every axle. That single rating was new: GM’s 1990 and 1991 L98 ratings moved with the body, gearbox and axle. The LT1 is a 5.7-liter (350 cu in) pushrod V8 with an iron block, aluminum heads, 10.5:1 compression, multiport injection, and two catalytic converters with an oxygen sensor for each bank. Its cooling runs backward, coolant to the heads first, which the Black Book page calls “a Chevrolet first.” Redline is 5,700 rpm, 700 higher than the L98’s, with fuel cut at 5,850. At 452 lb it weighed 21 lb more than the L98, partly because cast iron exhaust manifolds replaced stainless ones.

The name came from a ride. GM’s July 1992 engine release says a development engineer stepped out of an early prototype and said “It reminds me of the ‘70 LT-1,” and it stuck. GM’s sales album called the output “the highest net horsepower for any production-car small-block in Chevrolet history.”

Car and Driver’s figures come through Corvette Action Center’s table. GM’s specification sheet calls 3,223 and 3,269 lb “curb weight,” but those are shipping weights on the industry-standard MVMA sheet in the same kit, whose curb weights the table uses. The G92 axle couldn’t go with the six-speed and needed FX3 or Z07. On a six-speed, the lever skipping from first to fourth at light throttle is the design, as the 1989 guide explains.

How much oil does a 1992 LT1 hold? GM’s own papers disagree. The service manual and specification sheet say 5 quarts with the filter. An unsigned owner question sheet bound into the same kit says 4 1/2 quarts with the AC PF51 filter and that “the owner’s manual and service manual are wrong.” Corvette Action Center lists 4.0. Fill gradually and go by the dipstick.

What ASR does. The 1992 was the first Corvette with traction control. It’s on whenever the key is, and a switch above the headlight switch turns it off. When a rear wheel spins, it retards the spark, closes the throttle and applies the rear brakes, and the accelerator pushes back slightly. GM’s September 1991 release was honest about the limits: ASR “does not increase the amount of grip available.” Switching it off, GM said, is for when more wheelspin is wanted or the car is stuck in snow or mud. A track day is the other reason, of course. It brought three new dash messages: SERVICE ASR, ASR ACTIVE and ASR OFF.

Why the SERVICE ASR light comes on. On a 1992 it can mean several unrelated things, and the ABS/ASR module stores its own codes, apart from the engine computer’s:

• Dirty sensors. Owners in a Corvette Action Center thread running 2011 to 2020 (opens in new tab) cleared ASR code 28, a wheel speed sensor fault, by cleaning brake dust and rust off the rear sensor rings; one found a front sensor unplugged.
• A lost tach signal. Module code 62 means the module lost the engine speed signal, so the light can come with a stall or a hot no-start (see Bulletins, complaints and the hot no-start).
• The brake fluid sensor. GM bulletin 93-224-5 says the fluid level sensor “introduced on the 1992 Corvette” can trip falsely with partly worn pads in hard braking or cornering, lighting the brake and ABS lamps with code 83; a revised reservoir came in from VIN P5114078. A real code 83 means low fluid, usually from worn pads.

GM’s July 1992 releases tell it from the plant floor: plant manager Paul J. Schnoes and UAW Local 2164 president Billy Jackson drove the car off the line, with Kentucky’s governor and Chevrolet general manager Jim C. Perkins there. St. Louis had built 699,438 Corvettes from 1954 to 1981; Bowling Green’s 1,100-plus workers were building some 20,000 a year. GM’s specification list gives a model 1YY67 convertible, VIN 1G1YY33PXN5119134, donated to the National Corvette Museum, then due to open in August 1993.

A 1992 offered as “the millionth” has to carry that VIN. Its serial, 119134, also sits inside the range of the year’s one federal recall (see Four campaigns, by serial number); that’s this site’s reading of GM’s numbers, not a GM statement about the car.

How many 1992 Corvettes were made? 20,479, by Corvette Action Center’s count: 14,604 coupes, 502 of them ZR-1s, and 5,875 convertibles, which its VIN ranges match. GM’s kit prints no final total. Its July 1992 release counts 19,422 through June 30, including “520 ZR-1 option coupe models,” more ZR-1s than Corvette Action Center counts for the whole year, so the two figures stand side by side.

The base price bought the LT1, the automatic, a body-color roof panel or a soft top, and black cloth seats; with destination, $34,185 and $40,695. The $1,333 preferred group (CVA1 coupe, CYA1 convertible) added electronic air conditioning, a Delco-Bose cassette and a power driver’s seat. Prices are GM’s. The Black Book page’s count column is blank for 1992, so the counts are Corvette Action Center’s (opens in new tab):

Z07 is the one to hunt for. GM’s order guide pitches it “for the Gymkhana/Autocross Enthusiast”: FX3 with a performance calibration, stiffer springs, shocks, anti-roll bars and bushings, and heavy-duty brakes, coupe only, with G92 required on an automatic (Corvette Action Center says either gearbox could have it). GM’s 1990 planning book folds the old Z51 into it and gives Z07 and the ZR-1 front rotors of about 13 in against the base car’s 12.

Colors. Nine, three of them new for 1992 and in production: Bright Aqua Metallic, Polo Green II Metallic (GM’s code 45, which the Black Book calls Medium Green Metallic) and Black Rose Metallic. White leather was for convertibles only, and cloth came only in black. Counts are Corvette Action Center’s:

The ZR-1 package cost $31,683, which made a ZR-1 coupe $65,318, and the 1992 car wore “ZR-1” emblems above its gills for the first time. Electronic air conditioning joined the package; traction control and the GS-C tires came because every 1992 got them. The 375 hp LT5 was in its last year at that rating: the 1993 got 405 hp. Campaign 92C10 covered early ZR-1s too. A real 1992 ZR-1 has Z fifth and J eighth in its VIN and a serial from 800001 to 800502; its own bulletins, and the rest of the proof, are in the C4 ZR-1 guide.

The serial number, the last six digits of the VIN, says which of GM’s four 1992 campaigns apply. Three were GM product campaigns on early cars, known from Corvette Action Center’s copies of GM’s dealer bulletins; the fourth, on late cars, is the only one in NHTSA’s recall file.

92C11 matters most. GM’s bulletin, as Corvette Action Center reproduces it (opens in new tab), says certain early LT1s got Opti-Spark distributors that “may develop a faulty low-resolution pulse signal,” causing a stall or a no-start with the Service Engine Soon light and code 16. Parts were short at first, so owners were contacted in stages, and dealers were told to fix any campaign car they took into inventory before reselling it. It’s a different fault from the moisture problem in the C4 guide’s Opti-Spark section.

92C10 reads like a drivability problem: with the pedal arm touching the trim panel, GM listed brake lights that stay on, light brake drag, vibration, and cruise control or ASR that won’t work.

92V160000 is the one federal safety recall. NHTSA’s campaign record (opens in new tab) says the power steering inlet hose on LT1 cars could fracture and spray flammable fluid into the engine bay, risking a fire; 5,152 cars across 1992 and 1993 were covered, and GM limited it to “certain late 1992” serials. A car built before serial 107665 should show 92C11, before 104325 also 92C10, and before 102615 also 92C08. A dealer’s records, or the seller’s paperwork, should prove each one.

The Opti-Spark and water pump. Every 1992 has the first, unvented Opti-Spark, the distributor at the front of the engine behind the water pump. GM bulletin 87-65-27 covers misfires from a cracked, carbon-tracked or wet cap and rotor on 1992–1996 cars and names this version as the one “WITHOUT positive vent system.” The C4 guide’s problems section has the repair costs.

GM’s 1992 dealer bulletins worth knowing, from Corvette Action Center’s transcriptions:

• 92-43-10. Cars before serial 100919 have one-year hood latch striker bolts and pop-up springs GM stopped stocking; 1989–1991 parts fit.
• 92-322-6D. On automatics up to serial 107500, the starter wire from the park/neutral switch can rub on the shift bracket: a click and no start, with no code.
• 92-318-7A. A harsh cold 1-2 shift on 4L60s built March 1 to June 19, 1992 (Julian dates 061 to 171).
• 92-301-6A. A ticking that “may sound like a piston type noise,” from exhaust manifold heat shield bolts backing out.
• 93-273-6A. Every 1992 left the factory with a double-sided serpentine belt that could fray. GM changed to a single-sided drive in March 1993, and converting takes a belt, tensioner, pulleys and an alternator.
• 93-134-10. The engine can crack the cowl behind the right head when the engine or gearbox comes out, so a cowl crack says one has been out.

The hot no-start. Owners raise the 1992–1993 LT1’s engine computer (ECM) most. In a 2015 CorvetteForum thread (opens in new tab), two 1992 owners describe one that quit when hot, lit SERVICE ASR and wouldn’t restart, fixed by a rebuild that reflowed cracked solder joints, $189 plus shipping in 2015. A 2024 thread adds that the part was used only in 1992–1993 Corvettes and the 1993 F-body LT1 cars, so it’s hard to find. No GM bulletin on ECM solder turned up, and the Opti-Spark and ignition module can cause the same symptoms, so a hot no-start needs a diagnosis, not a guess.

NHTSA’s file. Seven complaints (opens in new tab), filed from January 1995 to August 2003. By this site’s reading, three describe the Opti-Spark failing (a 1999 owner wrote that the car wasn’t covered by a distributor recall “due to VIN,” most likely 92C11’s cut-off), and the rest are single reports: a sudden acceleration that ended against a van with no injuries, a power seat wiring fire, a cracked wheel and worn brakes. The 1991 has 24 and the 1993 has 22, but the file opened in late 1994, so seven says more about the database than the car.

Is 1992 a bad year? Not by the record. The C4 guide and the best Corvette years guide ask for a harder look at 1992–1994 for the unvented Opti-Spark, not at 1992 alone. In a 2023 CorvetteForum thread on the most troublesome C4 year, one owner said the same few voices keep calling the 1992 bad; others named the 1984 or every LT1 car. What sets the 1992 apart is that its fixes come with serial numbers a buyer can check.

Is a 1992 Corvette a C4? Yes, the ninth of its 13 model years. Is it a Stingray? No: GM’s 1992 papers name a coupe, a convertible and the ZR-1, and the generations guide traces where the name went.

The VIN, from GM’s 1992 service manual chart:

Engine and gearbox. The LT1 carries part of the VIN on its block; its suffix codes are ZAC (automatic) and ZUB (manual), its block casting 10125327 and its heads 10128374, per the Black Book page and Corvette Action Center. The 4L60’s build date is a Julian day on the right rear of the pan rail, which settles the 92-318-7A question, and the axle code is on a yellow sticker on the differential cover. The Service Parts Identification label inside the console lid lists every RPO code: it’s the proof for Z07, FX3, G92 and MN6.

Against a 1991: two rectangular exhaust tips, not four round ones; all-black dash buttons and faceplates; the digital speedometer above the fuel gauge; an ASR switch. Against a 1993: no 40th Anniversary badging; the paint isn’t Competition Yellow or Torch Red, both 1993 colors; no passive keyless entry. A new-for-1992 color such as Bright Aqua Metallic rules out a 1991, and the tenth VIN character settles the rest.

1. The serial number. Match it against the table in Four campaigns, by serial number, and ask for proof of each campaign that applies.
2. Distributor and water pump history. When each was last replaced, and with what. Look for coolant weeping at the pump.
3. A hot restart. Drive it at least 20 minutes, shut it off, wait a few minutes and restart it, more than once. Owners describe ECM and ignition faults that show up only hot.
4. The warning lights. SERVICE ASR, ABS and brake lamps out after start; the ASR switch should turn ASR OFF on and off.
5. The brake pedal. Brake lights off with the pedal released, full pedal return, and cruise control that sets (92C10).
6. Oil. Wetness at the oil filter adapter (92C08) and the rear of the engine.
7. The belt. Fraying on the double-sided serpentine belt, or a record of the single-sided conversion.
8. Noises. A tick at idle can be loose heat shield bolts; a growl in first at parking-lot speed is normal on 1989–1992 ZF six-speeds, the 1989 guide notes.
9. The automatic. A harsh cold 1-2 shift points to bulletin 92-318-7A; GM’s 92-336-6E covers a backfire on the full-throttle 1-2 upshift.
10. The cowl behind the right cylinder head: a crack there means the engine or gearbox has been out.
11. Tires and fluid. Tire date codes, and brake fluid that isn’t just low from worn pads.
12. The label against the ad, then an inspection by a shop that knows LT1 C4s. The generation-wide list is in the C4 guide’s checklist.

How much is a 1992 Corvette worth? About $13,000 at auction in 2026. From January 1 to October 22, Bring a Trailer (opens in new tab) sold eight unmodified 1992 LT1 cars for $6,400 to $27,000, a median of $13,125 by this site’s count of sold prices without the buyer’s fee. The five convertibles brought a median $15,000; the three coupes went for $6,400, $11,250 and $27,000, the last an original-owner six-speed with 9,000 miles. A Lingenfelter-modified 383 coupe ($20,000) is left out. In 2025, thirteen LT1 cars sold for $8,600 to $22,500, a median of $13,350.

ZR-1s are their own market. From January 1 to October 17, the window the ZR-1 guide uses, eight 1992 ZR-1s sold for $14,250 to $70,000, a median of $29,625, the same figure that guide gives. One more, with 103,000 miles, sold for $11,500 on October 19. Samples this small are market color, not a valuation.

Hagerty’s #3 (good) values, in an archived copy of its C4 page (opens in new tab) from February 8, 2026: $8,800 for the coupe, $11,500 for the convertible and $22,500 for the ZR-1. The coupe’s $8,800 is the lowest #3 value of any base C4 year and body on the table, though only $100 below the 1984 coupe’s $8,900. classic.com’s last readable figure for 1992 base cars dates from October 2024: an average of $13,953 over 120 sales, from $4,950 to $36,500. That’s what values did, not a forecast.

Buy a 1992 coupe built after serial 107664, with the six-speed and receipts for the Opti-Spark and water pump. A late serial takes the three early campaigns off the table, and the starter-wire and hood latch bulletins with them; past 116740, ask for proof of the power steering hose recall instead. The six-speed went on about one 1992 in four, and GM timed its quickest 0–60 with it. A Z07 coupe, one of 738, is the find: let the console label prove it, then take it to the autocross GM built it for.

The budget path is an automatic coupe at Hagerty’s $8,800: 300 hp, traction control and America’s sports car for under $9,000 in good condition. That price is the whole point of the 1992. Spend some of the savings on the distributor. The convertible costs more, about $15,000 at auction in 2026, for the same 300 hp.

Compare before buying. A 1993 is the same car with 340 lb-ft, at $11,300 on Hagerty’s February table. The C4 pick for most buyers is a 1995 or 1996, with the vented distributor, and a ZR-1 is bought by the ZR-1 guide’s rules. Whichever it is, a C4 that sits wants a battery maintainer and a cover.