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Hey all. Last month I bought a 1983 F-250 Custom with a rebuilt 460 installed. For the sake of getting the right parts at Napa and elsewhere, is there a way to identify the age of my 460 or what model year it came from? Any identifying features or part numbers I could check? I only ask because one of my local auto parts stores gave me the wrong distributor cap and wire set, and when I exchanged it, they were able to find the right kit but under an older model year truck.
I see a DSII box over on the fender.
You *should* have the larger cap, the tall rotor and a cap adapter on your distributor.
.... whatever. As long as you don't have a lot of arcing with the points style cap I guess you're okay.
The only real difference in any 460's found in *carbureted* trucks was the running change to external balance cranks in 1979.
You can tell by the tomahawk counter weight behind the harmonic damper or a D9TE casting code on the block.
Your truck is way too far from stock to say what will fit, determined by what SHOULD fit.
Hey all. Last month I bought a 1983 F-250 Custom with a rebuilt 460 installed. For the sake of getting the right parts at Napa and elsewhere, is there a way to identify the age of my 460 or what model year it came from? Any identifying features or part numbers I could check? I only ask because one of my local auto parts stores gave me the wrong distributor cap and wire set, and when I exchanged it, they were able to find the right kit but under an older model year truck.
Here's a picture of the beast in question.
DuraSpark electronic ignition introduced in 1974, but not all vehicles came with it until 1976.
V8 dizzy cap with female ends used 1956/73, 1974/75 with/without DuraSpark, 1976 with DuraSpark. 1977: Ford changed the dizzy cap, has male ends, there's a plastic adapter below that the cap clips to.
Introduced mid-year 1979: If the block casting number is D9TE-6015-AB the 460 is externally balanced, has a weighted crank spacer. Uses a different harmonic balancer and flexplate than...
Block casting number D1VE-6015-AB was used 1971/78 and on some 1979's. This block is internally balanced. Block casting number prefixes C8VE - C9VE - D0VE (1968/1969/1970) are also internally balanced.
Oh, yes Chris.
For the '88 model year 7.5l engines got Speed Denisity fuel injection.
An easy visual identifier is serpentine front dress on the fuelie engines.
E7TE FI heads were updated again to F3TE in 1993.
IIRC California trucks were Mass Flow the last year(s) of production ('96-'97)
I don't mention those because Ford changed heads and valve covers to ones not compatible with carburetor intakes or exhaust manifolds, though the short blocks are pretty much the same.
Valve covers are cast, with four bolts down the middle.
Pushrods moved, so the larger more rectangular ports are not even in the same places.
One difference in the D9TE block (note the TruckEngine designation, 385's were not used in Lincolns at this point) is that the cylinder sleeves were made longer for more piston support at BDC.
An internal balance crank's counter weights will not clear the later block, though you can use a external crank in a D1VE block.
So would my 460 be a 1976 engine based on the blue, smaller distributor cap in addition to the DuraSpark ignition system? Or is it too modified to reliably say at this point?
So would my 460 be a 1976 engine based on the blue, smaller distributor cap in addition to the DuraSpark ignition system? Or is it too modified to reliably say at this point?
The blue dizzy cap, while standard equipment on 1975/76's, could be installed on any 1957/74 V8.
If the dizzy is original to a 1971/78, some 1979's, the block casting number will be D1VE-6015-AB
DuraSpark electronic ignition could be present on a 1974/75, will be present on a 1976 and later.
If there's a problem with arcing, it can also occur on the outside of the cap - between the distributor cap towers and boot/terminals. Usually only visible at night, but associated with stumbling or missing at idle. That's one reason the diameter of cap went quite a bit larger as higher voltage electronic ignitions replaced point systems.
Check for a counterweight or the block casting number behind the starter.
At least you will then know if it is before or after '79.
"Rebuilt" ... its impossible to say what parts were used to put it together, but as it stands it didn't come from a bullnose truck.
460's were only available as a C6 2wd automatic truck in the '70's.
They disappeared for a few years while the 400 (stroked 351M) took over.
In 1983 they were again available, this time with the option of 4wd and/or a manual (T-19) gearbox.
Probably doesn't help you much... but there you go.
A front sump engine can't fit with a 4x4 crossmember.
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