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Which Cleveland
#1
I have a 73 Mach 1, 351 4V, Q code that I picked up last fall that I am having a blast working on. Starting out with the basics, new suspension, brakes, fuel system and so on.

I am confused as to what motor I have, it was supposed to be original, but:
Block casting # DOAE-L Date code OG9 (should be June 9, 1970)
Heads Date code OF29 ( should be May 29,1970), Heads do have "4" on the upper corners.
Intake casting # DOAE-9425-L

What model Cleveland do you think I have.
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#2
Kar;127015 Wrote:I have a 73 Mach 1, 351 4V, Q code that I picked up last fall that I am having a blast working on. Starting out with the basics, new suspension, brakes, fuel system and so on.

I am confused as to what motor I have, it was supposed to be original, but:
Block casting # DOAE-L Date code OG9 (should be June 9, 1970)
Heads Date code OF29 ( should be May 29,1970), Heads do have "4" on the upper corners.
Intake casting # DOAE-9425-L

What model Cleveland do you think I have.

What model, or what year? June blocks/may heads could have been used on 70 or 71 Mustangs.

Although not "numbers" correct, early year blocks/heads were generally better in regards to metal composition. Additionally, you probably have quench heads and not open chamber. That is generally also a plus.

It sucks you were told original. But, I don't think such a switch a roo would come as a surprise to most here.

Now, if you PAID more money for your car than you would have, and you have written PROOF the seller said all original, and you can convince a judge the car is worth less without the original motor, you may be due some cash. But, probably only if the judge is a member of this site.

Then again, there is always judge judy...

[Image: 11jmcuc.png]
351C Bold Manners, Brash Attitude
Favorite Teams: Michigan Wolverines and Whoever Is Playing Ohio State.

When I drive past a herd of cows, the cows MOO at me
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#3
You have an M-code engine that was swapped into your car at some point. It is not the original engine but a more powerful one.

[Image: 386_07_10_13_5_58_42.jpeg]
My Mustangs:
71 M-code Mach 1, Medium Blue/White Sport, 4R70W, 3L50, Factory Ram Air.
72 Q-code Mach 1, Pewter/Black Sport, 4-spd, 3L25.
65 Convertible, Britney Blue/White/White, more modified than original.
05 Convertible, Legend Lime/Tan/Tan, future classic??
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#4
well if that's the case...

[Image: 2cossj6.png]
97 F150: wrecked, 96 Dodge 4x4: blown motor / donated to the base
88 Suburban 4x4 355 cid 8 inch lift: sold, 95 Celica 5 speed : sold
68 F750 391 cid : sold,  96 F350 7.3 diesel dually : sold
86 Chevy 1500 305 cid c1500: sold, 73 Mustang mach 1 466 cid 5 speed : under construction
89 F350 4x4 cummins swap : sold, 64 Dodge d600: gone
00 Excursion: traded, 72 Mustang mach 1 302: scrapped
73 Mustang coupe: scrapped, 73 ranchero gt
06 Honda crf 450x : sold, 04 Honda vtx 1800
88 Bronco xlt lariat: sold, 76 Charger: traded
95 F350 4x4: sold , 91 Crown Victoria 302: sold
02 Dakota: traded, 96 f250 powerstroke: parts truck
87 f700, 98 e350 powerstroke: sold
03 land rover: traded, 95 f350 dually: part out
95 f350 dually: traded, 94 f150 4x4: traded
97 f250: sold, 76 Maverick 302: sold
91 240sx rb25: sold, 86 firebird: sold
86 Trans Am: sold, 88 westernstar: sold
89 dodge d350: sold, 2000 Dakota 4x4: sold  
84 f350 3+3: sold, 90 bronco: partout
67 catalina, 64 chevy c60
64 jeep j200, 74 corvette stingray
79 Lincoln mark V, 2013 f350: goldilocks
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#5
I am fine with the earlier model engine, I am looking to build or rebuild a period correct car. I could care less about a #'s matching, and like the fact that I may have better heads. When I open the hood I want it to look correct (no windsor setting in there), but other than that I just want the best combination I can put together on my budget.

Thanks Guys
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#6
It sounds like you have a great foundation for the build you are planning.

Jeff T.

Low buck, touring style, '73 Convertible "rolling restoration", 351c, 2v heads with a shave and a haircut, Performer intake, Holley 650(ish), roller rockers, screw in studs, guideplates, stainless valves, Duraspark / Motorsports MSD, T-5 conversion. 1-1/8" front, 3/4" rear swaybars KYB shocks and some home brewed subframe connectors. Future plans; JGC steering box, Cobra brakes and... paint, interior, etc.

When I die I want to die like grandpa, peacefully in my sleep... not screaming, like his passenger.

[Image: 1_12_09_14_10_15_11.png]
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#7
What is max height from block to carb for Cleveland motor in a 72 Mustang Convertible?(installing anEdelbrock Performer Air Gap Intake Manifold 5" height in place of an Edelbrock 2 Barrel Intake Manifold w/3.9" height)

[Image: 1_12_09_14_11_07_03.png]
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