---
title: Lancia Stratos HF Gruppo 4 (1974) · HICONIUM
description: "Lancia Stratos HF Gruppo 4 (1974). The competition family: 26 official racing versions, joined by factory-approved period conversions and later competition-spec cars that must not be counted as works chassis."
canonical_url: https://hiconium.com/vehicles/lancia/stratos-hf-stradale/gruppo-4
---

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[Lancia Stratos HF Stradale — the model file](https://hiconium.com/vehicles/lancia/stratos-hf-stradale)

# Stratos HF Gruppo 4

Homologated 1974 · Very rare · 26 built

![Alitalia-liveried Lancia Stratos Gruppo 4 in side profile](https://hiconium.com/_derived/images/cars/lancia-stratos-hf-stradale/art/alitalia-stage.jpg.w1920.q75.webp)

The execution

The competition family: 26 official racing versions, joined by factory-approved period conversions and later competition-spec cars that must not be counted as works chassis.

The works engine evolved from 12 to 24 valves. Stellantis quotes 300 hp for the latter; the New Stratos comparison gives 270 hp and 790 kg dry. Pirelli documents P7 tyres for Munari's 1977 Monte-Carlo win; its red, white and black body livery belongs to a separate 1978 record.

On the record

- 26 factory or official racing versions
- Monte-Carlo 1975: Munari/Mannucci, +3:06
- 001581 period conversion: €625'000, Knokke-Heist 2025
- Works, period conversion and later recreation are separate files

As separated

Years Homologated 1974

Built 26

Engine 2'418 cc Dino V6 · 12V / 24V works evolution

Power 270–300 hp

Weight 790 kg dry reference

Against the Stratos HF Stradale

Years Homologated 1974 · Stratos HF Stradale 1972–1975 assembly

Built 26 · Stratos HF Stradale 492

Engine 2'418 cc Dino V6 · 12V / 24V works evolution · Stratos HF Stradale 2'418 cc Ferrari Dino V6 · triple Weber 40 IDF

Power 270–300 hp · Stratos HF Stradale 190 bhp

Weight 790 kg dry reference · Stratos HF Stradale 980 kg kerb / dry reference

[All Stratos HF Stradale executions](https://hiconium.com/vehicles/lancia/stratos-hf-stradale#variants)