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| Identify Block - A little help https://www.slantsix.org/forum/viewtopic.php?t=25681 |
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| Author: | GeorgeT [ Sun Nov 04, 2007 2:08 pm ] |
| Post subject: | Identify Block - A little help |
Picked up a replacement motor for my pickup and need a little help identifying the year before I work on the rod and main bearings. Of course it is a Slant Six Blue in color Numbers on the Passenger side rearward portion of the block up high are a little fuzzy but they are either: 4F488755 or 4P488755 Two a-fixed tags read 1504: (Yes there is a dot over a dot after the 4) with AAWJ near by. On the back of the block, up high is a vertical stamp: PD Driver side front portion of the block has: 2806830-8 - BH on the driver side of the block farther back Under the alternator bracket - 4225 R 6 19 5 Freeze plugs with extra ribs on this side of the block. The rib going back from the water pump mount gets much larger instead of remaining 1/4". The crank has 52 stamped on one lobe and a B, R or 8 on another. The rod bearing width is 1 inch (not diameter. Width.) Rings on and on if you tap it. If I understand what I am reading correctly this makes the block a 1968 to 1970 production with a forged crank. Is there a way to identify a forged crank for certain? |
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| Author: | SlantSixDan [ Sun Nov 04, 2007 4:48 pm ] |
| Post subject: | |
Quote: 4225 R 6 19
1974-model 225 engine built on June 19, 1974.
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| Author: | GeorgeT [ Sun Nov 04, 2007 5:16 pm ] |
| Post subject: | |
Thanks, once again you are a life saver. 1974-model 225 engine built on June 19, 1974. Crank is still forged, right? |
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| Author: | SlantSixDan [ Sun Nov 04, 2007 5:22 pm ] |
| Post subject: | |
Yup, cast cranks started in the middle of the 1976 model year. |
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| Author: | GeorgeT [ Sun Nov 04, 2007 5:36 pm ] |
| Post subject: | |
I have a manifold for a two barrel. The distributor is junk. Got any recommendations for fuel and spark combination for a pickup. It is married to a 727 transmission that I just replaced the clutches and torque converter on. I want to build for simple maintenance. |
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