Hello,
about four years ago I purchased a 1973 Mach 1 "F" code (had the 302 2V) with the notion it had a 351 C possibly BOSS in it. I have cast away all dreams of this engine being a 351 BOSS, but was wondering if someone could help me identify it with greater detail since it is not the original engine. The engine code is D2AE-CA with the numbers 3613 beneath it. The cylinder head has 0G24 stamped in it under the valve cover. The cylinder heads have 4 stamped on them and the intake manifold number is D0AE-8426-L. If it is worth anything the harmonic balancer number is D3AE 8312-EA. The engine came with a 4 speed top loader and HURST competition shifter. Any info would be very much appreciated, thank you

first off, welcome Jake!

look for the actual build date code on the block surface near the timing tab pointer, it stamped in, you might have to sand the paint/rust or remove the sludge to see it.

is there a round dot next to the 4?

are you sure that the 6 in 3613 is not a G ?

if it is, looks like you're block was cast on july 13, 1973. and if the shortblock is untouched it should still have the dished cast pistons in it.

heads were cast on july 24 of 1970. going by the WIKI head cast code list, i'm gonna guess that your heads are closed chambered by the date code
http://351cleveland.wetpaint.com/page/4V+Cylinder+Head+Spreadsheet

damper number fits with 1973 production year, could be original to the shortblock.

IIRC that's a Holley pattern intake with no EGR?

so you have low(er) compression pistons and high(er) compression heads.

how does it run? what fuel do you feed it? have you done anything with the distributor/advance curve?

BTW, this is the off-topic lounge section of the forum, very little traffic here except for a few, you'll get a lot more response if you post this/future posts on the main page.

if you want to, copy and paste yours and post it to the main page and i'll copy/paste mine...

"Enlightened statesmen will not always be at the helm" ~ James Madison

Thank you for the information and welcoming me into the forum. Unfortunately I am travelling right now and I cannot copy and paste into another forum from my phone. I was hoping you could answer just a few more questions until I return home and able to look at the block and rearrange my forum posts. If the cylinder heads are closed 4 from 70 does that give my Cleveland more power? I saw the specs between the 70 and the 71 boss were not much different. If memory serves me correctly it doesn't have a bump nextto the 4. Honestly don't remember how it runs it has been apart since I moved away for college. Now that I am finishing up my RN hopefully I can afors to work on it some more! Is the intake from a 70's model too? How much benefit would I derive from a blue thunder intake utilizing my prexistimg ram air? As far as the intake I am unsure of what to tell you about the EGR...that's just for emissions right?? Anyway if you don't mind responding under "the bench" right now until I can get home and regroup I would really appreciate it!!

most guys consider the closed chambers more desirable, they are capable of better detonation control but there's ways to make the same power with open chambers, like using domed pistons.

in your example, yeah, the closed chambers are gonna make more power on the 73 block with dished pistons, could be about the best scenario using stock parts if you minimize the deck clearance by zero decking, or close to zero decking. going to the effort to that though would probably include cylinder boring and replacing the pistons anyway, no reason you couldn't use a 'reverse dome' when the time comes.

the Blue Thunder intake would be an improvement but how much? probably significant at WOT/top end but don't dismiss the stock DOxx manifold, they're heavy but not garbage.

Exhaust Gas Recirculation is an emission control method from the day, having a non-EGR manifold just means you won't need to likely find some way to elimate it. bonus!

yeah, so when you get home or find a PC just post on the main page and we can let this one fall to the bottom...

"Enlightened statesmen will not always be at the helm" ~ James Madison