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Econoline Engines

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Engine Code	Year	Engine (cu.in.)	Horsepower	Brake Horsepower	Compression	Timing	Distributor Contact Spacing	Dwell (degrees)	Spark Plug	Spark Plug Gap	Cooling Capacity
S	1961	144	74 @ 4000 R.P.M.	90 @ 4200 rpm	8.7:1	4°	0.024-0.026	35°-38°	B7A-12405-B Motorcraft: BF-82 Autolite: 46	0.032-0.036	10.7
T	1961	170	79 @ 3600 R.P.M.						B7A-12405-B Motorcraft: BF-82 Autolite: 46	0.032-0.036
S	1962-64	144	79 @ 4000 R.P.M.	(1961-1963) 90 @ 4200 rpm (1964) 85 @ 4200 rpm	8.7:1	(1962) 6° (1963-1964) 4°	0.024-0.026	35°-38°	B7A-12405-B Motorcraft: BF-82 Autolite: 46	0.032-0.036	10.5
T	1962-64	170	85 @ 3600 R.P.M.	101 @ 4400 rpm	(1961-1963) 8.7:1 (1964) 8.4:1	(1962) 6° (1963-1964) 4° Automatic 8°	0.024-0.026	35°-38°	B7A-12405-B Motorcraft: BF-82 Autolite: 46	0.032-0.036	10.5
T	1965	170	85 @ 3800 R.P.M.	105 @ 4400 rpm	9.1:1	manual 4° automatic 8°	0.024-0.026	35°-38°	B7A-12405-B Motorcraft: BF-82 Autolite: 46	0.032-0.036
J	1965	240	129 @ 4000 R.P.M.	150 @ 4400 rpm	9.2:1	manual 6° automatic 8°	0.024-0.026	35°-38°	B7A 12405-A Motorcraft: BTF-6 Autolite: 46 before Ser.# 624,001	0.028-0.032	12.5
G	1965-67	200	95 @ 3600 R.P.M.	120 @ 4400 rpm	9.2:1	manual 6° automatic 10°	0.024-0.026	35°-38°	B7A-12405-B Motorcraft: BF-82 Autolite: 46	0.032-0.036	9.5
F	1966-67	170	89 @ 3800 R.P.M.	105 @ 4400 rpm	9.1:1	manual 4° automatic (1966) 8°, (1967) 10° all with thermactor 0°	0.025	37°-42°	B7A-12405-B Motorcraft: BF-82 Autolite: 46	0.032-0.036	9.5
A	1966-67	240	129 @ 4000 R.P.M.	150 @ 4000 rpm	9.2:1	manual 6° automatic 10° all with thermactor 0°	0.025	37°-42°	C5TZ 12405-A Motorcraft: BTF-42 Autolite: 45 from Ser.# 624,001	0.032-0.036	12.5

Canadian Econolines

Engine Block Code	Door Plate Code	Year	Engine (cu.in.)
NAD	S	1961	144
	T	1961	170
PS	Y	1962	144
PT	Z	1962	170
QS	Y	1963	144
QT	Z	1963	170
RY	Y	1964	144
RZ	Z	1964	170
SZ	SZ	1965	170
SY	SY	1965	240

Engine Oil

year	engine	temperature range	oil	oil_capacity
1961-1964	144/170	above 100° F	SAE 40 or 20W-40	4.5
1961-1964	144/170	between 32° and 100° F	SAE 30 or 10W-30	4.5
1961-1964	144/170	between 10° F and 32° F	SAE 20 or 10W-30	4.5
1961-1964	144/170	between -10° F and 10° F	SAE 10W	4.5
1961-1964	144/170	below -10° F	SAE 5W or 5W-20	4.5

1965	170	above -10° F	SAE 10W-30	4.5
1965	170	below -10° F	SAE 5W-20	4.5

1966-67	170	above 90° F	SAE 20W-30-40	4.5
1966-67	170	between -10° F and 90° F	SAE 10W-20W-30	4.5
1966-67	170	below -10° F	SAE 5W-10W-20	4.5

1965-67	200	above -10° F	SAE 10W-30	4.5
1965-67	200	below -10° F	SAE 5W-20	4.5

1965	240	above -10° F	SAE 10W-30	5
1965	240	below -10° F	SAE 5W-20	5

1966-67	240	above 90° F	SAE 20W-30-40	5
1966-67	240	between -10° F and 90° F	SAE 10W-20W-30	5
1966-67	240	below -10° F	SAE 5W-10W-20	5

NOTES:

The Horsepower rating is based on the engine speed in the R.P.M. column.

The 144, 170, 200, and 250 engines are from the same family of small-block sixes.

144 and 170 cubic-inch engine:

identified by three freeze plugs on the right side.
identified by three-bolt water pump.
Identified by letter cast in block near road draft tube. 144 is N, 170 is T.
Intake manifold is part of the head.
The 170 cui engine was first available in the Econolines on June 1, 1961. Prior to that, only the 144 cui was available.

200 cubic-inch engine:

1963 to mid-1964 can be identified by three freeze plugs. These have four main bearings and 1/4" distributor drive.
after mid-1964 can be identified by five freeze plugs and casting code of C5DE-H. These have seven main bearings (better) and 5/16" distributor drive.
identified by three-bolt water pump.
Intake manifold is part of the head.
The 200 engine is a rare find in the 1965 and 1966 Econolines. Only a few special-order Econolines from 1966 have been found to have one.
The 200 is an easy replacement for the 144 or 170 engine.

250 cubic-inch engine:

identified by five freeze plugs and four-bolt water pump.
Engine is too tall for dog house without modification.
250 is not a direct bolt-in replacement for the 144/170/200 engine.

The 240 and 300 engines are from the same family of large-block sixes.

Engine Tag

Engine tags were placed under the coil mounting bolt on all engines starting in January 1964.

144 C.U.I engines had engine tag identification codes 12, 13, and 15.

170 C.U.I engines had engine tag identification codes 4, 9, 10, and 11.

240 C.U.I engines had engine tag identification codes 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, and 121.