1972 Pontiac GTO 455 HO

Muscle car powered by Pontiac 455 HO V8.

Licensed 1972 Pontiac GTO front-left view used as exact-year body context; exterior photos alone are not 455 HO proof.

Factory pathway 1972 Pontiac LeMans/LeMans Sport ordered with GTO package and 455 HO engine path

Engine Round-port Pontiac 455 HO, rated 300 SAE net hp and 415 lb-ft in reviewed 1972 references

Production 646 reported 1972 455 HO cars in Over-Drive's mid-size Pontiac fact sheet

Package boundary GTO was a LeMans/LeMans Sport option package for 1972, not a standalone model series

Authenticity warning Endura nose, GTO badges, or 1972 body photos are not standalone 455 HO proof

Story

1972 Pontiac GTO 455 HO

The 1972 Pontiac GTO 455 HO sits at the end of the classic A-body GTO performance line. Pontiac no longer treated GTO as its own series; it was an option package on LeMans and LeMans Sport coupe bodies. That makes a real 1972 GTO 455 HO a paperwork car before it is a stripe, hood, or badge story.

Reviewed sources describe the 455 HO as the top 1972 GTO engine, rated at 300 SAE net horsepower and 415 lb-ft in mid-size Pontiac references. Over-Drive's 1972 mid-size fact sheet reports 646 cars with the 455 HO engine. Other GTO totals are reported slightly differently depending on whether edge-case bodies are counted, so this page records the safe model-level range and keeps finer body/transmission splits as follow-up work.

The practical authentication path is simple: PHS/order documentation should show both GTO package and 455 HO equipment, and that paperwork should agree with engine code, round-port hardware, transmission, axle, paint, trim, and owner-history evidence. Exact-year photos are useful context, but they do not prove the rare engine option by themselves.

**1972 Pontiac GTO at Orange Julep used as exact-year exterior context; color, trim, and engine identity remain car-specific.**Bull-Doser via Wikimedia Commons · Public domain

Specs

Car type: Muscle car
Body: LeMans and LeMans Sport coupe/hardtop GTO-option context
Engine: 455 cu in Pontiac 455 HO V8; 8.4:1 low-compression, round-port HO context
Horsepower: 300 SAE net hp @ 4,000 rpm in reviewed 1972 references
Torque: 415 lb-ft @ 3,200 rpm in reviewed 1972 references
Carburetion: Rochester Quadrajet four-barrel context

Equipment

GTO option package on LeMans/LeMans Sport coupe bodies
Round-port 455 HO engine with aluminum intake and large-branch exhaust context
Ram Air hood availability when ordered and documented
Muncie 4-speed or Turbo Hydra-Matic automatic context depending on car
Endura nose, Rally II or honeycomb wheel context
No production 1972 GTO convertible despite LeMans Sport convertible option-build caveats

1972 GTO hood and nose detail crop; Ram Air or 455 HO claims still require paperwork and engine-code evidence.Bull-Doser via Wikimedia Commons; crop by Classic Muscle Cars · Public domain

Linked Parts

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.

Market Observations

Price guide value $39,200

Jul 28, 2026 · Hagerty Valuation Tools · Current guide point
Current #3 good-condition benchmark for the exact 1972 LeMans GTO two-door coupe with the 455cid/300hp four-barrel engine. · unknown · good Hagerty showed $39,200 when accessed on 2026-07-28. This is the unadjusted guide value, not a completed transaction or evidence for a particular car's originality.
1972 Pontiac LeMans GTO 455cid/300hp 4bbl
Auction sale $73,900

Mar 3, 2023 · Bring a Trailer
455 HO four-speed GTO 2D37X2P143888 with a reported multi-year mid-1990s refurbishment and repaint, M22 transmission, Safe-T-Track differential, and Y99 handling package. · restored · good Bring a Trailer records the $73,900 completed sale and reports the refurbishment history. Its inconsistent gross-horsepower sentence is not used for this valuation record.
1972 Pontiac GTO Hardtop 455 HO 4-Speed 2D37X2P143888
Auction sale $22,000

Aug 3, 2013 · RM Sotheby's
Documented 455 HO four-speed GTO 2D37X2P183041, described as mostly original with one repaint and accompanied by its original window sticker, purchase order, Protect-O-Plate, and other records. · survivor · good RM Sotheby's records the $22,000 result at its 1-3 August 2013 California auction. The normalized date uses the event's closing date because the lot page does not expose an individual sale day.
1972 Pontiac GTO 455-HO 2D37X2P183041

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.

Transmission

Factory transmission Muncie 4-speed manual context
Factory transmission Turbo Hydra-Matic 400 automatic context

Options

Evidence graphic summarizing the 1972 GTO option-package boundary on LeMans and LeMans Sport bodies.Classic Muscle · Reference illustration

GTO 1972 GTO option package factory · appearance · For 1972, GTO reverted to an option package on LeMans and LeMans Sport coupe bodies.
455 HO / LS5 455 HO engine option optional · performance · Over-Drive reports the 455 CID HO engine was optional and rated at 300 SAE net hp with 415 lb-ft.
Ram Air hood Ram Air hood context optional · performance · Ram Air hood and related equipment require car-specific paperwork before being treated as original.
Muncie 4-speed Four-speed manual transmission optional · performance · Manual-transmission claims need car-level paperwork and drivetrain evidence.
Honeycomb/Rally II Honeycomb and Rally II wheel context optional · appearance · Wheel choice remains order-specific.

Production

Evidence graphic summarizing 1972 Pontiac 455 HO rating, round-port hardware, and source boundaries.Classic Muscle · Reference illustration

1972 Pontiac GTO broad production context total · 5,807 · reported
1972 Pontiac GTO 455 HO production by engine · 646 · reported
1972 Pontiac GTO hardtop context by body · 5,673 · reported
1972 Pontiac GTO pillared coupe context by body · 134 · reported

Authenticity

Evidence graphic summarizing 1972 GTO 455 HO transmission and axle verification boundaries.Classic Muscle · Reference illustration

GTO and 455 HO option evidence PHS/order paperwork should show both the 1972 GTO package and 455 HO engine option. · PHS invoice, dealer order paperwork, build sheet, owner records, and period documentation · fraud detection
1972 455 HO engine identity Engine code, casting/date evidence, round-port hardware, intake, carburetor, exhaust, and Ram Air equipment should align with the build record. · PHS invoice, engine-code pad, block/head/intake/carburetor casting and date evidence, Ram Air parts, and service records · numbers matching
Body-style boundary 1972 GTO production is coupe/hardtop package context; LeMans Sport convertible performance builds should not be counted as production GTO convertibles. · Order paperwork, VIN/body style evidence, trim tag, and PHS documentation · trim correctness
Driveline match Transmission and axle should match paperwork, engine path, and physical stamp/code evidence. · Transmission tags/stamps, axle tube stamp, PHS paperwork, build sheet, and date-code evidence · date correctness
Paint and trim evidence Paint code, interior trim, wheels, tach/gauges, and shifter should match documentation and physical evidence. · Trim tag, PHS/build records, original paint traces, interior trim tags, period photos, and restoration records · trim correctness

Still Researching

production Checked sources support the broad GTO and 455 HO counts, but body/transmission/axle/paint splits for 455 HO cars need reconciled production records.

Codes & names