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Full-size performance

1993 Cadillac Seville STS

Full-size performance powered by 1993 Cadillac Seville STS 4.6-liter Northstar V8.

Classic Muscle EditorialLast reviewed Sep 15, 2026

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Engine 1993 Cadillac Seville STS 4.6-liter Northstar V8
Output 295 bhp at 6,000 rpm (Cadillac, SAE J1349)
Transmission 4T80-E electronically controlled four-speed automatic transaxle
Program Modern American Performance

Story

1993 Cadillac Seville STS

The STS pairs Cadillac's Seville sedan with the 4.6-liter Northstar V8 and its electronically controlled 4T80-E automatic transaxle. Road Sensing Suspension and traction control complement this powertrain.

Evidence boundaries

Cadillac's exact-year owner's manual distinguishes the STS from the standard Seville: the Northstar, transmission and final-drive specifications must not be mixed with the other model's 4.9-liter engine, 4T60-E or 2.97:1 axle. The manufacturer lists 279 cubic inches directly; it is not a conversion from rounded liters.

The manual gives the horsepower rating at 6,000 rpm. Generation boundaries, engine RPO code, production totals and acceleration figures are not asserted in this review. Shipping weight is not presented as curb weight.

Photo pending

No reusable exact-1993 STS exterior has been accepted. Broad model-year photo descriptions and later-body STS photographs do not establish this target's identity. Collection inclusion remains deferred pending normal media eligibility and review.

Price history

Values

Nominal dollars from original price sheets, auction archives, and approved value references.

Original Price

A verified original price is not yet available for this car.

Values move with paperwork, originality, options, condition, venue, and body style. High bids and guide values are labeled separately from completed sales.

Reference records

Options, Colors & Components

Source-backed details for trim, chassis, production, and authenticity.

Engine Details

  • Documented model-year powertrain 1993 Cadillac Seville STS 4.6-liter Northstar V8; 295 bhp at 6,000 rpm (Cadillac, SAE J1349); 290 lb-ft at 4,400 rpm (Cadillac, SAE J1349) · 1993 Cadillac Seville STS · engine assembly / specification

Transmission

  • Factory transmission 4T80-E electronically controlled four-speed automatic transaxle

Still Researching

  • rear axle The reviewed evidence does not provide a complete exact-year rear axle specification and application record.
  • brakes The reviewed evidence does not provide a complete exact-year brakes specification and application record.
  • suspension The reviewed evidence does not provide a complete exact-year suspension specification and application record.
  • option packages The reviewed evidence does not provide a complete exact-year option packages specification and application record.
  • production The reviewed evidence does not provide a complete exact-year production specification and application record.
  • paint colors The reviewed evidence does not provide a complete exact-year paint colors specification and application record.
  • trim and appearance The reviewed evidence does not provide a complete exact-year trim and appearance specification and application record.
  • interior The reviewed evidence does not provide a complete exact-year interior specification and application record.
  • authenticity markers The reviewed evidence does not provide a complete exact-year authenticity markers specification and application record.

Codes & names

Names & Engine Codes

Common names and codes are grouped so LS6 references point to the same engine, not separate pages.

1993 Seville STS Northstar 1993 Cadillac Seville STS 4.6-liter Northstar V8
1993 Seville VIN 9 V8 1993 Cadillac Seville STS 4.6-liter Northstar V8

Photo and video gallery

Gallery

0 additional photos or videos

Approved images are shown with the relevant sections above. No additional gallery media is available yet.

Sources & Documentation

Reader contributions

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