Part profile

1973 Buick XS-code 455 Stage 1 engine assembly

Name: 1973 Buick XS-code 455 Stage 1 engine assembly
Brand: Buick

engine part · Buick

1973 XS-code 455 Stage 1 factory specification 1973 Buick Century Gran Sport Stage 1 455

Why It Matters

The 1973 XS-code assembly keeps the lower-compression, SAE-net-rated Colonnade application distinct from earlier Stage 1 engines while linking it to the shared Buick 455 Stage 1 family.

Also Known As

1973 Buick Century GS Stage 1 engine1973 XS 455XS-code 455 Stage 11973 455-4 Stage 1

Used On

1 linked car page.

two-door Colonnade hardtop coupe, including Sun Coupe

1973 Buick Century Gran Sport Stage 1 455

XS-code 455 CID Stage 1 V8

Related Parts

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transmission

Muncie M21 close-ratio 4-speed manual

brake

Power-assisted front disc brakes

carburetor

Rochester Quadrajet 4MV carburetor

transmission

Turbo Hydra-Matic 400 automatic transmission

Source Trail

Buick Motor Division via XR793 1973 Buick Full Line Brochure

Stage 1 Registry 1973 Buick GS Stage 1 Option Breakdown

TeamBuick 1973 Buick Paint Charts and Codes

TeamBuick US Buick Engine Production Codes

The Poorman's Off Chassis Restoration 1973 Buick Vehicle Identification Numbers

Federal Register / United States Government Publishing Office 1973 Model Year Light Duty Vehicle Certification Levels

Audrain Auto Museum 1973 Buick Century GS 455 Stage-1 Colonnade Sun Coupe

MaccaIsntDead via YouTube 1973 Buick Century GS455 - vintage road test