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#1
16-11-09, 03:31
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Ford V8 Crankshafts/Bearings
Sometime back someone was discussing using C8BA rods and bearings on an earlier V8.
This is ok if you are using a C8BA or C49A crankshaft with two oil holes per journal. If your crankshaft has only a single oil hole in the centre of the crank pin the oil will leak between the two rods. In Australia, we see a few engines with C41A/C49A crankshafts and locked in bearings. The crankshaft size is the same as the C8BA, but the bore in the big end of the rod is larger.
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John Mackie (Snr) VK2ZDM Ford GPW- script #3A Ford Trailer M3A1 White Scout Car -Under restoration- 1941 Ford Truck (Tex Morton) F15A Blitz Radio sets- #19, #122, #62, ART13, and Command 
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#2
16-11-09, 04:35
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Bearings oil and other important stuff
Absolutely right. When rebuilding a flattie and you are going to use 8BA goodies always be sure to match an 8BA crank with 8BA con rods. This was done when I rebuilt my engine...I used a 1948 Block and 1952 Crank and Con Rods.
Most important. cheers Mike
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#3
16-11-09, 07:13
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You can also use a 255 Merc crank in the 48 motor if you use Merc pistons too and you end up with a 255 cid engine. That would give a noticeable hp and torque increase.
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1940 Cab 11 C8 Wireless with 1A2 box & 11 set 1940 Cab 11 C8 cab and chassis 1940 Cab 11 C15 with 2A1 & Motley mount & Lewis gun 1940 Cab 11 F15A w/ Chev rear ends 1941 Cab 12 F15A 1942-44 Cab 13 F15A x 5 1942 cab 13 F15A with 2B1 box 1943 cab 13 F15A with 2H1 box 1943 Cab 13 C8A HUP 1944 Cab 13 C15A with 2C1 box 1943 Cletrac M2 High Speed Tractor MkII Bren gun carrier chassis x 2
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