77 460 Timing Using 68-71 Timing Set
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Junior User
Joined: Dec 2004
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From: Oak Harbor, WA
77 460 Timing Using 68-71 Timing Set
I have a 77 Ford F250, 2WD, AT, 460. I have read alot about using the 68-71 timing set for better power. When you do this do you use the 68-71 Timing or the 77 460 timing specifications. I only have the 77 Timing specs so I wanted to check before I put in the cam and gear set.
Hotshot
Joined: Dec 2003
Posts: 18,423
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From: iowa
the only difference and the reason for the power change is the later years retarded tha tcam timing you can do the same thing with any after market timing chain, if you do a cam degree on it you will see what I am talking about but all you are doing is advancing the cam (I could be backwards on this but I do know that it changes the cam timing by going to the earlier timing sets)
Senior User
Joined: Dec 2004
Posts: 107
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From: NE TN
would using Edelbrock's Accudrive (Gear Drive) be a better alternative then? I will be using my 85 F250 7.5L for towing a Travel Trailer Semi-Full time and I'm trying to get prepared properly. Thank You
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Posting Guru
Joined: Jun 1999
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From: SW Missouri
Originally Posted by D. DeBoer
I've heard using the 68 - 71 tbird timing gears will work also for an 1985 460. Is this correct?
the stock replacement chain set advances the cam to what I think is the best cam timing for every cam I've tried. I have tried several multiple keyway sets, and the 68-71 advance was the best every time. I suppose if you were building a 9-second drag car with an obscene cam, a different setting may be required, but for stump-pulling torque, and street driving, the stock crank gear is as good as I've tried, and its cheaper. (and its a pain to change the T/C on a 385-series)
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Senior User
Joined: Aug 2004
Posts: 368
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From: Las Vegas, Nevada
Originally Posted by D. DeBoer
would using Edelbrock's Accudrive (Gear Drive) be a better alternative then? I will be using my 85 F250 7.5L for towing a Travel Trailer Semi-Full time and I'm trying to get prepared properly. Thank You
Senior User
Joined: Aug 2004
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From: Las Vegas, Nevada
Originally Posted by whd507
except that geardrives can accelerate cam bearing wear. and are noisy.
More Turbo
Joined: Mar 2002
Posts: 508
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From: Easthampton, Ma.
I ran an Edelbrock roller chain on a 460 in my old Bronco for 3 yrs. until the motor needed a rebuild. Upon disassembly I found the Edlebrock chain junk (stretched badly)
With the next 460, I installed a Cloyes True Roller. Ran this chain for 4 yrs. until I deceided to do a cam change.
When I removed this chain it was as tight as the day I installed it (no kidding)
I'll bet you can guess which chain I now use when I put together a motor!
Steve G.
With the next 460, I installed a Cloyes True Roller. Ran this chain for 4 yrs. until I deceided to do a cam change.
When I removed this chain it was as tight as the day I installed it (no kidding)
I'll bet you can guess which chain I now use when I put together a motor!
Steve G.
New User
Joined: Feb 2003
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460 double roller chain
Help! When I took my 1989 F350 460 apart to change the water pump, I discovered that the previous owner had replaced the original chain with a double roller. Sounds good, but it is a Ford unit and the cam gear is marked D8TE-BA then in another place are some numbers that are hard to read: 5256 or 5266 or ? I didn't spot any other part numbers. I think that means my 1989 has a 1978-era chain. Does anyone know what this might be off of and whether it is 0° or a retarded timing set?
Thanks!
Thanks!
Cross-Country
Joined: Nov 2004
Posts: 67
Likes: 1
I bought a chain set that had three positions on the crank sprocket..The key way either lined up with a tooth or was lined up between two teeth or was a whole tooth off..It had 22 teeth on it so a whole tooth would have retarted the cam timing by 16.36 degrres..Alot in other words..I have a picture of it I just wish I knew how to show it on this forum..Mike