lil' help for a 460
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lil' help for a 460
I just freshened up a 460 out of a 77' Grand Marquise and slipped it into my 79' F100 with a c6 behind it. It sure is sweet but I think it could use a little help with maybe a cam and some headers. I have a good size Carter 4bbl on there now with stock exhaust manifolds and dual exhaust. The motor is stock except for the straight 4bbl intake I put on when I eliminated the EGR system. Any advice or tips would be greatly appreciated. Thanks, Dave
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Joined: Nov 2000
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lil' help for a 460
The 460 likes a dual pattern cam, with more lift & duration on the exhaust side.
I'd go with a cam with 10' more duration & .020" more lift, both on exhaust side. in whatever grind you choose( try to stay in the 205'-220' dur @ .050 catagory for a stock or relatively stock 460). There are aftermarket intakes that make more power than your factory boat anchor manifold, but don't throw your's out yet. Super Ford magazine did a manifold shootout with a few aftermarket pieces and they found out that the factory For manifold made the most torque below 3500 rpm and wasn't that far away in the h.p. dept. either, unless you want a "honkin" 460 stay with the factory manifold or if the need strikes to buy an aftermarket piece go with an Edlebrock Performer #2166 or Weiand #8012. Change the timing chain and gears to an early model set Cloyes #3122, you will advance the camshaft a few degrees which helps build low RPM torque and H.P.( make sure you degree in the cam, MOST IMPORTANT, I personally have seen the keyway on the 460 crank be out as much as 6')!!!
Headers will definitely help out your 460, get full length headers if possible. After all is done check timing advance in distributor 10' or so initial and 34-38' total all "IN" by 2200 rpm or so. You can also change rocker arms and fulcrum system to a roller assembly to help out as well. I hope this heps in any way.
Todd
BB79RANCH
I'd go with a cam with 10' more duration & .020" more lift, both on exhaust side. in whatever grind you choose( try to stay in the 205'-220' dur @ .050 catagory for a stock or relatively stock 460). There are aftermarket intakes that make more power than your factory boat anchor manifold, but don't throw your's out yet. Super Ford magazine did a manifold shootout with a few aftermarket pieces and they found out that the factory For manifold made the most torque below 3500 rpm and wasn't that far away in the h.p. dept. either, unless you want a "honkin" 460 stay with the factory manifold or if the need strikes to buy an aftermarket piece go with an Edlebrock Performer #2166 or Weiand #8012. Change the timing chain and gears to an early model set Cloyes #3122, you will advance the camshaft a few degrees which helps build low RPM torque and H.P.( make sure you degree in the cam, MOST IMPORTANT, I personally have seen the keyway on the 460 crank be out as much as 6')!!!
Headers will definitely help out your 460, get full length headers if possible. After all is done check timing advance in distributor 10' or so initial and 34-38' total all "IN" by 2200 rpm or so. You can also change rocker arms and fulcrum system to a roller assembly to help out as well. I hope this heps in any way.
Todd
BB79RANCH
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lil' help for a 460
Thanks Todd for your input, but after carefull consideration I have decided to not change the cam in this motor. There are so many variables involved that I feel I need to research this subject further. I am going to take your asvice on the headers though so that part will be done. I have another 460 sitting on the floor in the shop thaqt I am just gonna build from the bottom up, including the cam and head setup together. Thanks for the info, this board has been a source of invaluable info. Dave
