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mmalec Offline
#1 Posted : Thursday, 13 September 2012 1:54:14 AM(UTC)
mmalec

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Hi All
A newby here . Is it possible to tell what size the motor is by the engine number . AL4KUJ58861K Would appreciate any help . Cheers
Jim5.0 Offline
#2 Posted : Thursday, 13 September 2012 2:20:37 AM(UTC)
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I don't know whether it is possible but if you have a Windsor it's easy as the blocks a visibly different however if it's a Cleveland then the easiest way to tell is by removing a spark plug and feeding some coat hanger wire into the hole.

Get the piston to TDC and start feeding wire in as you turn the engine. When you get to BDC if the difference is about 3" then you have a 302 if it's about 3.5" then you have a 351.

That method is probably best as you could be passing up an original 302 that has been stroked to 351 or worse buying a 351 that has been fitted with 302 internals if you simply go by the engine number.

mmalec Offline
#3 Posted : Thursday, 13 September 2012 3:10:24 AM(UTC)
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Thanks Jim
Appreciate the help mate
Paul351xb Offline
#4 Posted : Thursday, 13 September 2012 6:02:11 AM(UTC)
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If it's a cleveland with those numbers its most likely a 351 as the 302 was only made in australia. I'm no expert but that looks like a USA stamping.
mmalec Offline
#5 Posted : Thursday, 13 September 2012 9:00:37 PM(UTC)
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Hi Paul
The motor was originally in an F100 and I'm told that the A stands for America and the L for the state it was built in . It is completely stock and if they didnt build 302s in the States then I have a 51 . Cool
Thanks for the help
mmalec Offline
#6 Posted : Friday, 14 September 2012 10:57:33 PM(UTC)
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Hi Guys
Did the wire test last night and came up with a stroke of 3.5 inches . A 351 it is . Thanks
castellan Offline
#7 Posted : Sunday, 16 September 2012 5:54:24 PM(UTC)
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AL4K is a 4X4 F100. UJ is the year and month may 1978 could be.
mmalec Offline
#8 Posted : Tuesday, 18 September 2012 1:39:03 AM(UTC)
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Cheers castellan , can you tell me where i can find this info
gcg2503 Offline
#9 Posted : Tuesday, 18 September 2012 2:12:43 PM(UTC)
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Build date info here

http://www.fordforums.co...&file=viewarticle&id=316

Not 100% sure that it holds for USA though!
castellan Offline
#10 Posted : Saturday, 22 September 2012 3:59:59 AM(UTC)
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Have a look at the sump as F100 has a different one to a falcon.
The falcon one has the lower part at the front and the F100 it's at the rear.
dirtbikersa Offline
#11 Posted : Sunday, 7 April 2013 4:24:16 AM(UTC)
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Hi guys, looking for some urgent info. I am after a 351C and this guy has told me he is not sure if it is a 302C or a 351C, I am not sure if I can measure the stroke when I get there. The guy has sent me the following number on the engine -

JG34PR 462 34K

Is it possible to tell by those numbers?
Paul351xb Offline
#12 Posted : Sunday, 7 April 2013 4:55:24 AM(UTC)
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No It's not possible. Unless you have the compliance plate that came with the car. Can tell you it's out of a fairmont, october 1974. You'll either have to do the wire trick or take the sump off and see what's stamped on the crank.
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#13 Posted : Sunday, 7 April 2013 3:16:41 PM(UTC)
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Thanks Paul.
Paul351xb Offline
#14 Posted : Wednesday, 10 April 2013 4:16:28 AM(UTC)
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No worries mate. There is another way but it's not a sure thing. If the motor is all original what colour are the rocker covers and is it a 2 or 4 barrel manifold?
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