Topic: 351C blows oil out of the valve covers

[Tim175]

There is a casted "2" for 2v and "4" for 4v on the corner of each of the heads. I don't think its a clevo though just like previously stated, also that valley looks too small to be a clevo but then again it is just a pic i cant be sure. Hope the head info helps though.

[Jeff73Mach1]

Those are 2V heads which came on both the Cleveland and the Modified engines.  The intake pan is for a 4V head.  Whether or not the intake is a 4V I can't tell, but I was not aware that Offy made a 2V Cleveland intake.

Clevelands and Modifieds share heads, but not intakes,  Google the intake part number to find out for sure.

[tysonattrell]

ok, well, you learn somthing everyday.... just went out and looked at the heads, sure enough there was a big 2 on the corner of the heads. pretty sure it's a cleveland though, has the long oval shaped fuel pump, 8 bolt covers too. anything else i can look at? i tried but been unsuccessful at finding the casting numbers, heard its around the starter but my headers are in the way, i have to take them off anyways.

[tysonattrell]

i apologize for invading your thread, and thanks for all the info guys. still trying to find cast numbers...

[Soaring]

Here's a comprehensive article on identifying a Clevo, and it compares it to the M and other engines.  The big difference is the clevo shares the small block 6 bolt bell housing with the 289 and the 302, whereas the M shares the larger bell housing with the big blocks. 
http://home.comcast.net/~jelerath/mustang/Specs/specs-fr.html#General

[tysonattrell]

i looked at the intake and the only numbers i found on the whole thing were 380 on the top and underneath it said 6-8-8. cant find nothing on google

[Jeff73Mach1]

On the top it says 360

Offy made manifolds for both the Cleveland and the Modified engines

Modified engines used either 6033DP or 6141DP

Cleveland 4V Manifolds were 6013DP and 6014

Cleveland 2V Manifolds were (I'll have to research)

I left out the spreadbore numbers since yours appears to be a Holley pattern

Or you could just measure the manifold from side to side at the top edge and I can give you a measurement when I am at my car to compare.  The 351M and 400M have taller decks and therefore the manifolds are a bit wider

[tysonattrell]

hmm, ok. im gonna go outside and actually pull off the pass side header and look for the casting number, i'm going crazy trying to figure this out. i'll post the number when i find it and measurement of the width of the intake

[Jeff73Mach1]

BTW, don't feel bad about hijacking a thread, but a new thread will often get more responses.

2V heads as Cores are worth about 200 on ebay
$300 if they are in ready to run condition
the intake manifold you have is probably worth $100.00

Valve covers are good for about $20.00 a pair

A decent 351C block that has not been bored if tanked cleaned and sonic checked is probably worth 150.00 if it is a 2 bolt main and 250 if it is a 4 bolt main.  $ bolt main caps alone are worth as much as an entire block as all clevelands can be drilled and tapped to use the 4 bolt main caps and the caps are relatively cheap to ship.

The ignition system I see is probably of little value, maybe 50 bucks.

The valve train (springs, rocker arms pushrods) is of little value unless sold with the heads (keep it in order if you remove it.)

Camshafts are a hit and miss deal and I would never buy a used camshaft (though I have two used ones I kept as they look perfect to me)  If you can identify it by either part number or by having a shop measure lift, duration, and overlap, then it might be worth a maximum of $75 bucks unless it is some rare collectible part (fat chance)

Can't tell what the carb is, but again, unless it is tagged and matches up to a Boss 302 or Boss 351 or some other collectible, it isn't worth more than $150.00 at best and that is probably a stretch.

If it is a 351M the heads, valve covers are still the same.

Intake might be worth a little more actually as 351 M aftermarket intakes are a bit harder to find.  Block is worth $75 at best and same for the crank.

None of this is scientific, but my best guess after watching parts on ebay and craigslist for the last 7-8 months.

a crank that is unturned, but undamaged is probably worth $150.00

Pistons are worthless, the rods aren't worth much.

[tysonattrell]

wow, thanks for all that info!
so, i went out there and measured the width of the intake it measures approximately 11"3/4 - 12".
then after looking and looking, i found the tag hidden behind the header and very close to the starter. after cleaning the first number was hard to make out but i think it read "1A5".
thats all that was there, hope thats it as it got cold and don't feel like being out there anymore haha

[tysonattrell]

i think 1A5 means 5th January 1971, still doesn't give me what i want.... i can't find any other number on there

[tysonattrell]

oh, sorry, realized the code is above the "1A5" date number......i'll have to pull the starter off to see it

[tysonattrell]

here is what i FINALLY found

[Jeff73Mach1]

I think that is a casting code for January of 1975.  If so it is a Modified block, noit a Cleveland.

What transmission is hooked to it?  early 351/400M engines did use a smallblock bolt pattern for the bellhousing and they are rare and perhaps even slightly desirable for building stroker motors for cars equipped with FMXC, C4, small block toploaders and small block C-6's as they  (as you can now see) are indistinguishable to most people for 351 Clevelands, but can be stroked to well over 400 cubic inches

[Jeff73Mach1]

http://www.musclemustangfastfords.com/tech/mmfp_0911_installing_a_400m_small_block_into_a_351_cleveland_stroker_engine/index.html

[tysonattrell]

well after doing some research i found this cool chart. the "1A5"
1= the year of the decade (71)
A= the month of production (january)
5= the day

and as of the D0AE-L, that's listed as either a 400 or 351C, so still having trouble figureing that out. but here is that chart



located at http://www.reincarnation-automotive.com/casting-numbers-page-2-ford-casting-numbers-explained.html

[tysonattrell]

well easier said then done, seems every link to a chart is either cancelled or lost. thats what the "D0AE-L" number is, but it either says its for a 400 or 351C i REALLY want to know exactly what it is and it's hard to find a reliable correct chart

[tysonattrell]

i found this chart but like i said it's either a 351C or 400.... seems like the only one i can find too, anyways here it is and thanks again everyone for the help.

[Soaring]

By that chart, it appears that the 351-C and the 400 share the same block.  The same casting number would indicate that.  The "1" in the date code indicates it's a 1971 block, but both engines used that casting number in 1971.  Like I said before, crawl under the car and see if the bellhousing is a small block 6 bolt pattern.  If it is, then you most likely have a 351-C.  If not, and the bellhousing shares the same bolt pattern as the big blocks, then it is a 400. 

[tysonattrell]

right, so, this could either be used as a 351C or 400?