Sunday, September 28, 2014

1949 - 8BA (239.4 - Displacement Cubic Inches)

my sunday/funday...i bought a flathead.


1949 - 8BA (239.4 - Displacement Cubic Inches)
3.1875 x 3.750 - Bore Stroke
6.80:1 Compression Ratio
Compression Pressure 110
Spark Plugs - Champion H10 (.030")
Valve - Valve clearances on the flathead V8 are set COLD.
            - Exhaust Clearance .014-.016"
           -  Intake Clearance .010-.012"
Distributor - 7RA-12127C
Timing Mark: Groove on front pulley
Distributor Rotation: Clockwise
Cylinder Numbering (front to rear):
Right Bank: 1-2-3-4     Left Bank: 5-6-7-8      1-5-4-8-6-3-7-2
Condenser Capacity: 0.21 to 0.25 microfarads
Breaker Spring Arm Tension: 17 to 20 oz.
Ignition Timing - 2° BTDC
HP 100
24 Head Bolts
Ford-Holley two barrel carburetor

Late 90-125hp V8:

1949 to 1953 Passenger Cars
1948 to 1953 Trucks

Major changes occurred to the mid size flathead V8 in 1948 for the new Ford trucks and in 1949 for new Ford and Mercury cars. The new engine incorporated several changes, some obvious and some not. The heads are now bolted to the blocks with 24 bolts (rather than studs and nuts) and the water outlet fittings are moved up to the front corner of the head (rather than the middle of the head). Another major change was the use of the new "Load-A-Matic" distributor, which was driven off the front of the engine, but through a shaft mounted vertically at right angle to the axis of the engine. With this new engine, Ford stopped casting the bell housing integral to the cylinder block, and provided it as a separate component which was bolted on. Internal changes include using a straight stem valve with one-piece valve guide. The belts and pulleys for 1948/49 stayed with the 5/8" wide of previous years, but changed from 1950 on to the narrow belts. In general, the latter year flatheads were commonly referred to as the "8BA" type for Ford and "8CM" for Mercury. The truck version was identified as an "8RT". Later 1952 and '53 Fords and Mercurys were known as "EAB" and "EAC" respectively. These markings are generally cast into the cylinder heads. The truck versions often had different oil pans to accommodate the different suspensions, and some truck V8's were factory "relieved". The EAB's and EAC's did not have the hardened valve seat inserts like the earlier engines.



1949

1949

1953

1953