Mercury Engines (1966)


The Power of Mercury

More power and livelier performance for every model come with the 1966 Mercury engines. A full range of power plants is available from the Marauder 390 V-8 rated at 265 hp up to the Super Marauder 428 V-8 with 345 hp. Big news for '66 is the introduction of the new Marauder 410 V-8 featuring four-barrel carburetion and producing 330 hp. The Marauder 410 is standard for all Park Lane models and optional for other models as shown in the Engine Chart, below. "Deep breathing" is a key factor to the high power and efficiency of Mercury engines. Carburetors are more efficient with improved airflow through the cleaner. Intake manifolds are designed for minimum restriction and new camshafts provide increased valve lift and overlap for better breathing. Transmissions are carefully matched to engines for maximum performance. And there is a new Multi-Drive Merc-O-Matic especially designed to be teamed with the Marauder 410 V-8 or Super Marauder 428 V-8. In all, seven new Mercury engine-transmission teams. Availabilities are shown on the chart below.



Mercury Power Teams
Engines and transmissions other than standard
are optional at extra cost.
Marauder
390 V-8 (a)
Marauder
390 V-8 (b)
Marauder
410 V-8 (c)
Super Marauder
428 V-8 (f)
Displacement 390 cu. in. 390 cu. in. 410 cu. in. 428 cu. in.
Bore and Stroke (in.) 4.05 x 3.78 4.05 x 3.78 4.05 x 3.98 4.13 x 3.98
Adv. hp. @ rpm. 265 @ 4400 275 @ 4400 330 @ 4600 345 @ 4600
Adv. torque, lb.-ft. @ rpm 401 @ 2600 405 @ 2600 444 @ 2800 462 @ 2800
Carburetor 2-bbl. 2-bbl. 4-bbl. 4-bbl.
Compression ratio 9.5 to 1 9.5 to 1 10.5 to 1 10.5 to 1
Fuel Regular Regular Premium Premium
Exhaust Single Single Single(d) Dual(g)
Valve lifters Hydraulic Hydraulic Hydraulic Hydraulic
Alternator 42-amp. 42-amp. 42-amp. 42-amp.
3-speed manual transmission X - X(e) -
4-speed manual transmission(h)(i) - - X X
Multi-Drive Merc-O-Matic(i) - X X X

(a) Standard for all Monterey, Montclair, Commuter and Colony Park models with manual transmission.
(b) Standard for Monterey, Montclair, Commuter and Colony Park with Multi-Drive Merc-O-Matic.
(c) Standard for Park Lane and optional for other models.
(d) Dual exhausts optional. Not available for station wagons.
(e) Standard for Park Lane bench-seat models. Not available for other models equipped with this engine.
(f) Optional at extra cost for all models, except the S-55, where it is available as standard equipment.
(g) Dual exhausts not available for station wagons.
(h) 4-speed manual transmission not available for Mercury station wagons.
(i) Optional at extra cost. Multi-Drive Merc-O-Matic or 4-speed manual mandatory option for Mercury S-55 and Park Lanes with optional bucket seats.


Comet Power Teams
Engines and transmissions other than standard
are optional at extra cost.
Comet
200 "6" (a)
Cyclone
289 V-8
Cyclone
390 V-8 (b)
Cyclone
390 V-8 (b)
Cyclone GT
390 V-8 (c)
Displacement 200 cu. in. 289 cu. in. 390 cu. in. 390 cu. in. 390 cu. in.
Bore and Stroke (in.) 3.68 x 3.13 4.00 x 2.87 4.05 x 3.78 4.05 x 3.78 4.05 x 3.78
Adv. hp. @ rpm. 120 @ 4400 200 @ 4400 265 @ 4400 275 @ 4400 335 @ 4800
Adv. torque, lb.-ft. @ rpm 190 @ 2400 282 @ 2400 401 @ 2600 405 @ 2600 427 @ 3200
Carburetor 1-bbl. 2-bbl. 2-bbl. 2-bbl. 4-bbl.
Compression ratio 9.2 to 1 9.3 to 1 9.5 to 1 9.5 to 1 10.5 to 1
Fuel Regular Regular Regular Regular Premium
Exhaust Single Single Single(d) Single(d) Dual
Valve lifters Hydraulic Hydraulic Hydraulic Hydraulic Hydraulic
Alternator 38-amp. 38-amp. 38-amp. 38-amp. 38-amp.
Transmissions
  3-speed manual (synchronized 2nd & 3rd) X - - - -
  3-speed manual (all-synchronized) - X X - X
  4-speed manual (all-synchronized)(e) - X X - X
  Multi-Drive Merc-O-Matic X X - X -
  Multi-Drive Merc-O-Matic(f) - - - - X

(a) Not available in Comet Cyclone 2-door HT or convertible.
(b) Optional in all models except Comet Cyclone 2-door HT or convertible.
(c) Available for Comet Cyclone GT 2-door HT and convertible only.
(d) Dual on Comet Caliente convertible.
(e) Not available for Comet station wagons.
(f) Available shortly after 1966 Comet introduction.

Note: An optional high-performance 427 CID engine will be available on special order after January 1, 1966.



Data taken from "1966 Mercury Dealers Brochure"




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