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Discussion Starter · #1 ·
1967 casting design, but other than that, what are they? What were they run on and for what years? My brother got a 428 for approximately 2 cases of beer the other day....lucky bastard. It's been exposed and the plugs are out so it will need overhauled at the bare minimum. Anyhow, he calls me up and gives me the head numbers and I tell him I'll try to figure out some particulars. The valve covers have "428" on the sticker. It is supposeably an irrigation motor and was run on natural gas. If it is set up for natural gas, would it have hardened exhaust seats already? Is there any conversion needed to go from natural gas to regular unleaded?
Like I said, C7TE-C 428 heads. What were they for and when did they run 'em? Also valve sizes and combustion chamber specs would be sweet. A future build will be in order so tips there would be nice. Thanks guys. I appreciate it.
 

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Discussion Starter · #3 ·
Thanks for the link. My old man has a 330 in a grain truck. I ought to have my bro compare the two motors and see if there is any external difference.
What is a stock 428's bore and stroke?
 

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Discussion Starter · #5 ·
Thanks. Here's another one. What is the crank and rod journal diameters?
Just trying to get enough info to tell this "supposed" 428 apart from any other FE. Anybody got any quick tips to positively ID a 428 via external visual inspection?
 

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Discussion Starter · #7 ·
Is that the old FoMoCo FE forum? It and the other forums hosted on that site have been shut down a while. I couldn't get the link to work. Thanks anyways.
Troy
 

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no real way to tell externally on FE's. Best bet is to stick a dowel down a spark plug hole and measure the stroke. A 428 will have a 3.96 stroke I beleive, but even with that stroke, it could be a 410.

Look for a balance weight on the damper or the flexplate/flywheel. The 410 and 428 are the only FE's that were externally balanced.
_________________
Darrell Duggan
74 F-350 460 4 speed OD
71 Stang 351c 4 speed OD soon to be a 460 beast
70 Torino Conv. N code 429

<font size=-1>[ This Message was edited by: Luv70sFords on 7/2/02 1:24am ]</font>
 

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The 428 had a 2.7488 main and a 2.4384 rod with a 3.98 stroke. Rod length is 6.488
 

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Discussion Starter · #12 ·
Thanks for the info guys. If anybody has any info on nominal compression for the C7 heads I'd appreciate it. If the block really is 428, then it's going into a grain truck so hi rpm performance won't be the focus. Thanks again!
Troy
 

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Ok,
I took some rough measurements with a ruler tonight. it go's
C7Te-C: Intake port: 1 9/16 X 1/ 1/4
Intake valve: 1 3/4
Exh: 1 15/16
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C8AE-6080
Intake port: 2 1/4 X 1 3/16
Intake valve: ****'s hair over 2"
Ehaust valve:1 5/8

Hope this helps.
btw, there are some industrial 428's with zero ballance.
 

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just from my own experience, heavy trucks work better with shorter strokes. Especially the way they are geared. My F-600 has a 331 FE in it, and is almost always pegged on the governer at 4200 rpm. The gearing is so low, I'd never need the torque a longer stroke could provide. I think this is why they only ever used the 429 in the big trucks instead of the 460. If this truck is gonna be at all like my F-600 I'd install a 331 or 361 (same stroke, 361 has a bigger piston) and sell that 428.
 

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Discussion Starter · #16 ·
Thanks Gary for the measurements. I'm going to get in touch with my brother this weekend and share the wealth of knowledge you fine folks have given me.

If it does turn out to be a 428, sorry to say it, but we're keeping it.
 
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