Mercury Montclair Engines by Year

The Montclair sat above the Monterey in Mercury's full-size line, with Marauder big-block V8s. Ratings are gross through 1971 and SAE net from 1972.

Pick a year to see every engine offered that model year, with its code, rated horsepower and the trims it came in. Each engine links to its full specs.

Jump to a year

1955–1956: 1955 · 1956

1957–1960: 1957 · 1958 · 1959 · 1960

1964: 1964

1965–1968: 1965 · 1966 · 1967 · 1968

1955–1956

1955 Montclair engines

Engine	Rated	Offered in
292 V8	—	Montclair (standard)

1956 Montclair engines

Engine	Rated	Offered in
312 V8	225 hp gross	Montclair (standard)
312 V8	260 hp gross	Montclair (special order)

1957–1960

1957 Montclair engines

Engine	Rated	Offered in
312 V8	255 hp gross	Montclair (standard)
368 V8	290 hp gross	Montclair (optional), Turnpike Cruiser (standard, note only)

1958 Montclair engines

Engine	Rated	Offered in
383 V8	330 hp gross	Montclair (standard), Turnpike Cruiser
430 V8	400 hp gross	Montclair (optional)

1959 Montclair engines

Engine	Rated	Offered in
383 V8	322 hp gross	Montclair (standard), Colony Park/Voyager (standard)

1960 Montclair engines

Engine	Rated	Offered in
430 V8	310 hp gross	Montclair (standard), Colony Park

1964

1964 Montclair engines

Engine	Rated	Offered in
390 V8	250 hp gross	Montclair (standard (manual))
390 V8	266 hp gross	Montclair (standard (Multi-Drive auto))
390 V8	300 hp gross	Montclair (optional)
390 V8	330 hp gross	Montclair (optional)
427 V8	410 hp gross	Montclair (optional)
427 V8	425 hp gross	Montclair (optional)

1965–1968

1965 Montclair engines

Engine	Rated	Offered in
390 V8	250 hp gross	Montclair (standard (manual))
390 V8	266 hp gross	Montclair (standard (Multi-Drive auto))
390 V8	300 hp gross	Montclair (optional)
390 V8	330 hp gross	Montclair (optional)
427 V8	425 hp gross	Montclair (optional)

1966 Montclair engines

Engine	Rated	Offered in
390 V8	265 hp gross	Montclair (standard, manual)
390 V8	275 hp gross	Montclair (standard with Multi-Drive Merc-O-Matic)
410 V8	330 hp gross	Montclair (optional)
428 V8	345 hp gross	Montclair (optional)

1967 Montclair engines

Engine	Rated	Offered in
390 V8	—	Montclair (standard)
410 V8	330 hp gross	Montclair (optional)
428 V8	345 hp gross	Montclair (optional)

1968 Montclair engines

Engine	Rated	Offered in
390 V8	265 hp gross	Montclair (standard (manual))
390 V8	280 hp gross	Montclair (standard with Select-Shift)
390 V8	315 hp gross	Montclair (optional)
428 V8	—	Montclair (optional)

Working on one of these engines?

• Engine displacement from bore and stroke
• Static and dynamic compression ratio
• Which camshaft for your build
• What size carburetor
• Horsepower to torque at any RPM
• Torque converter stall speed

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