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Peugeot 604 —
the flagship that followed the engine

The lion's flagship carried the PRV through its whole career and followed the engine as it evolved: carburetted SL, K-Jetronic mechanically injected Ti and STI, GTI up to 155 bhp with the 2,849 cc. It is one of the rare cars to have known both worlds, carburettor and injection, under the same bonnet.

136
bhp · ZM (SL, carburettor)
144
bhp · ZMJ (Ti, STI, K-Jetronic)
155
bhp · ZNJ 2,849 cc (GTI)
1975
among the first five PRV models
Engines

Three Peugeot codes, two displacements

Three PRVs depending on the version: ZM 136 bhp (SL, carburettor), ZMJ 144 bhp (Ti and STI, K-Jetronic), ZNJ 155 bhp (GTI, 2,849 cc) — all 12-valve, all first generation with non-offset crankpins.

Peugeot 604 SL · Ti · STI · GTI Every known code →
ZM · ZMS136 bhp
2,664 ccCarburettor12 valvesZM engine file →
604 SL — the original PRV, shared with the 504 Coupé and Cabriolet.
ZMJ144 bhp
2,664 ccBosch K-Jetronic injection12 valvesZMJ engine file →
604 Ti and STI — mechanical injection, like the Renault 30 TX and the Volvo 264 GLE. It is also the engine of Philippe Bouvard's Heuliez limousine (1982). A variant of this code, the 130 bhp ZMJ-159, powers the DeLorean DMC-12.
ZNJ155 bhp
2,849 ccBosch K-Jetronic injection12 valvesZNJ engine file →
604 GTI — the mechanically injected 2.8-litre, the 604's most powerful version.
In the Journal

Philippe Bouvard's rolling office

A press columnist and television figure for more than sixty years, Philippe Bouvard (1929–2026) had turned his car into an office. His 1982 604 Limousine came out of the Heuliez workshops at Cerizay — a flagship cut apart and stretched by 62 cm, first shown at the 1978 Paris Motor Show — and its PRV V6 is a 2,664 cc ZMJ. Glazed chauffeur partition, 150 MHz radiotelephone allocated by the PTT, typewriter, secretaries on board: he wrote his columns on the road. He donated it in 1998 to L'Aventure Peugeot; it is on display at the Sochaux museum with its period fittings intact.

The full tribute: « Philippe Bouvard's 604 Limousine — the PRV V6 rolling office ».

+62
CM · HEULIEZ LIMOUSINE · ZMJ 2,664 CC
1978
PARIS MOTOR SHOW
1982
BOUVARD'S 604
1998
DONATED TO SOCHAUX
The lion and the V6

Carburettor, injection, then the 2.8

Among the five of 1975

By the end of 1975, at least five PRV V6 models were on sale, barely a year after the Volvo 264 that led the way in October 1974. The 604 and the 504 Coupé and Cabriolet flew the lion's colours in that first wave, with the same carburetted ZM. Seven road cars had a carburetted PRV V6: Peugeot 504 and 604 (2.7 L, 136 bhp), Renault 30 (131 bhp), Volvo 260 (125 bhp), Alpine A310 V6 (150 bhp), Talbot Tagora (166 bhp — the most powerful of the carburetted 2.7s) and, alone in 2.8 L, the naturally aspirated Alpine GTA (160 bhp).

K-Jetronic injection

Bosch K-Jetronic mechanical injection equips six PRV models: Peugeot 604 (144 then 155 bhp), Renault 30 TX and Renault 25 (144 bhp), Volvo 260 then 760 (140 to 155 bhp) and the DeLorean DMC-12 (130 bhp). The Volvo CI injection booklet — one hundred and thirty-six pages on the same injection — is in the Library.

505 and 605, the sequel

The 505 V6 then carried the 170 bhp electronically injected ZN3J, and the 605 closed the chapter with the ZPJ and the 200 bhp 24-valve ZPJ4.

No document, for now

No document specific to the 604 V6 is in the Library yet — if you own one, the Contribute page awaits you.

In the workshop

What is known of the 604's V6

The family figures of the first-generation 2.7-litre — drawn from the Renault 30 manual (March 1975), the same engine out of Douvrin, no Peugeot document being in the Library yet — and the FAQ answers that concern her.

Peugeot 604 The full FAQ →
Moteur
What engine powers the Peugeot 604?
Three PRVs depending on the version: 136 bhp ZM·ZMS (SL, carburettor), 144 bhp ZMJ (Ti and STI, K-Jetronic), 155 bhp ZNJ (GTI, 2,849 cc). Peugeot codes file →
Bouvard
Which celebrity used a PRV V6 car as a rolling office?
A Peugeot 604 Limousine bodied by Heuliez (1982), stretched by 62 cm and powered by the PRV V6 (ZMJ, 2,664 cc): Philippe Bouvard had it fitted out as a genuine rolling office — glazed driver partition, PTT-issued 150 MHz radiotelephone, typewriter, on-board secretaries — to write his columns on the road. He donated it in 1998 to L'Aventure Peugeot; it is on display at the Sochaux museum with its period fittings intact. The full story →
Carburateurs
Which cars have a carburetted PRV V6?
Seven models: Peugeot 504 and 604 (2.7-litre, 136 bhp), Renault 30 (131 bhp), Volvo 260 (125 bhp), Alpine A310 V6 (150 bhp), Talbot Tagora (166 bhp — the most powerful carburetted 2.7) and, the only 2.8, the naturally-aspirated Alpine GTA (160 bhp). All vehicles →
K-Jetronic
Which cars have a PRV V6 with mechanical injection?
K-Jetronic injection equips six models: Peugeot 604 (144 then 155 bhp), Renault 30 TX and Renault 25 (144 bhp), Volvo 260 then 760 (140 to 155 bhp) and the DeLorean DMC-12 (130 bhp). PRV engines →
Poids
How much does a PRV V6 weigh?
About 152 kg with its ancillaries, according to the Renault 30 manual — the first car to receive it. The manual also gives the complete unit: 225 kg for the « engine + manual gearbox » assembly, 240 kg for « engine + automatic gearbox ». These figures are for the 2,664 cc of 1975; they give the order of magnitude of what you lift when you take a PRV out. Renault 30 M.R.167, folio B-3.
Paliers
How many main bearings does the PRV V6 crankshaft have?
Four, never five — the consequence of a V6's three crankpins, where an inline six lines up five. Three factory manuals say so in the same words, twenty years apart: the Renault 30 M.R.167 of March 1975 (folio B-9), the Alpine A310 2700 VA repair guide (folio B-10) and the Renault « Z engines » workshop manual, which adds « all types » (folio 10-35). M.R.167 folio B-9 · A310 guide folio B-10 · Z engines manual folio 10-35.
Joints
Are a PRV V6's two head gaskets identical?
No, and the manual says so in three lines that are easy to read past: “the cylinder head gaskets are different. The bulge marked by the arrow is larger on the left head gasket than on the right”. Left is bank A, cylinders 1-2-3. So an engine gasket set is not two identical gaskets, and a single gasket ordered without saying which side is a gasket ordered at random. It is worth checking the bulge against the old one before laying a new gasket on the block — a wrong-sided gasket fits the studs perfectly and only shows itself later, as a coolant passage in the wrong place. Renault 30 M.R.167, folio B-13.

In the Library

No Peugeot document for the 604; the 2.7-litre and its K-Jetronic injection are documented by their cousins: M.R.167 Renault 30 — the first-generation 2,664 cc · Volvo B27 / B28 — CI K-Jetronic injection

On the forum

The 604 has its own section on the forum — presentations, restorations, questions to members who drive one. Peugeot 604 section →

The codes behind the 604

ZM, ZMJ, ZNJ — three engine files, from the carburettor to the injected 2.8-litre.