dating an engine. |
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kversch
Senior Member Joined: 02-December-2009 Location: New york Status: Offline Points: 1399 |
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Posted: 23-May-2010 at 12:03PM |
I am trying to determine the date of the big block that I have. I am pretty sure its a 460. The valve covers say is a 7.5L. anyone know when they switched over from listing engine size in CI to L?
I also know its an emission engine as it has some emission components, so that would have to make it a 73 or later engine correct? |
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-kevin-
Brown 72 gran torino 351c 2v Black 73 GTS FB 302 Red 73 GTS FB 351C C6 trans 73 GTS FB Parted 73 torino 4dr, 302, FMX parted 97 F250 crew cab 7.3 diesel http://kverschtorino.blogspot.com/ |
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Psquare75
Admin Group Member of the Stroker Club Joined: 26-November-2005 Location: United States Status: Offline Points: 4591 |
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Got a picture of the valve covers?
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Paul
77 XR7 460/C6/3.00:1 *SOLD* 78 XR7 523/C6/3.5:1 79 F100 460/TKO500/3.25:1 'I also have some left over potatoes-I understand you can generate electricity from them'- Foote500 |
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torkair
Senior Member Joined: 01-May-2010 Location: Tucson, Az Status: Offline Points: 430 |
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They started listing them in metric in the mid 80s but the valve covers can always get switched around. Check the casting numbers on the heads, they should be right next to the lip of the valve covers cast into the top of where the exhaust manifold would bolt on.
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72 Gran Torino "sport"- in progress
73 Ranchero GT- Q code-460/C6/3.25 open rear |
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kversch
Senior Member Joined: 02-December-2009 Location: New york Status: Offline Points: 1399 |
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i will get a pic of the valve cover tonight, and I will see what i can find for casting numbers |
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-kevin-
Brown 72 gran torino 351c 2v Black 73 GTS FB 302 Red 73 GTS FB 351C C6 trans 73 GTS FB Parted 73 torino 4dr, 302, FMX parted 97 F250 crew cab 7.3 diesel http://kverschtorino.blogspot.com/ |
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occupant
Senior Member Joined: 23-October-2006 Location: Lawton, OK Status: Offline Points: 1973 |
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I would recommend a nice candlelit dinner. Don't try your luck until the third date.
Seriously, I believe Ford began calling engines by only their liter number in 1983 when the Thunderbird was redesigned. But I could be, and probably am, wrong. |
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08 Uplander LS, 262K, broken again
08 Explorer EB, 195K, for the wife still looking for another something |
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kversch
Senior Member Joined: 02-December-2009 Location: New york Status: Offline Points: 1399 |
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the only number I could see cast in to the heads was an 85. i did find this number cast in to the block itself, d9te-ab or atleast thats what I apeared to be
thats the best i could do thanks for the help guys |
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-kevin-
Brown 72 gran torino 351c 2v Black 73 GTS FB 302 Red 73 GTS FB 351C C6 trans 73 GTS FB Parted 73 torino 4dr, 302, FMX parted 97 F250 crew cab 7.3 diesel http://kverschtorino.blogspot.com/ |
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PatsPOS
Member Joined: 06-April-2004 Location: westcentral PA Status: Offline Points: 101 |
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That looks like an engine from an '87 pickup. First clue is the emissions decal...at the lower left corner of the decal, you can see its part number...E7AE-9C485-CJC. The valve covers and intake manifold are painted that drab '80s grey. And the block has the post-'78 truck block casting number. You'll probably find a small counterweight right behind the harmonic balancer, as these engines were, for whatever reason, externally balanced.
From what I've read, these blocks are desirable for strokers, as the cylinder is supposed to be a quarter-inch longer than earlier blocks.
Pat
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'75 460 Gran Torino Sport (14.04 @ 97 MPH)
'91 Crown Vic (18.09 @ 75 MPH) '89 300 F-150 (18.37 @ 73 MPH) |
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occupant
Senior Member Joined: 23-October-2006 Location: Lawton, OK Status: Offline Points: 1973 |
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Yeah, clear as day: "THIS ENGINE CONFORMS TO US EPA REGULATIONS APPLICABLE TO 1987 MODEL YEAR NEW HEAVY DUTY ENGINES...etcetcetc"
External balance like Pat said. Could be a real beast in there waiting to be awakened... |
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08 Uplander LS, 262K, broken again
08 Explorer EB, 195K, for the wife still looking for another something |
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