I have a 83 F250 4x2 460 auto with 3.55 gears. My truck is used to haul firewood,once or twice a year and pull the camper (20 miles one way 5000 lbs) but runs empty back and forth to work! The 460 in the truck now is a 78 Lincoln motor that i put all new bearings in,roller timing chain,HV oil pump and a hardened shaft. That was 2 years ago. Now i would like to replace the piston rings. What do you recommend std iron or Moly? I will also be putting on a set of DOVE heads with the guides and studs already upgraded and SS valves and some port work done. I would like to use Comp Cams Pro Magnum Rocker Arms with hardened push rods. The Comp cam is a X4262H or X4270H with new springs. I am favoring the 262 as i have read so much on overcamming. Has anyone had a similiar setup? I have dual 2 1/2 exhaust but factory exhaust and intake manifolds for now! Please share your expirences!

Thanks
Gene460

 

I wish I could help you, unfortunately I one of those people that it starts out mild or reasonable then gets totally out of hand and I end up paying big bucks for stuff like 100 octane unleaded because mild just doesn't seem to be in my vocabulary.

 

There is a thread called "DOVE head and regular gas?" just a few threads down you might want to read. If you are going to put on DOVE heads and port them, headers with the duals are a must. Stock intake is good for low end torque. A equalizer pipe (H pipe) between the headers and mufflers will help low end torque also.

 

460Gene, Hi! I'm Jim (F-250Dude) I have a 1975 F-250 Camper Special and this is the recipe I used for my 460. Block: decked, honed, aligned honed. Crank: 10-10, micro-polished, champered oil holes. Rods: shot peened, free floaters. Cam:Comp Cam #34-235-4.(dur.int./ex.-262/270) (lift int./ex-.505/.515) on 111deg. lobe seperation. Comp Cam springs,push rods,retainers. Cloyes True Roller timing set. Rhoads lifters. Ford Racing Roller Rockers.(#FOR-M-6564-C351). Manley OEM Stainless valves. Heads:hardened seats, bronze guides with PC seals, port matched intake & exhaust. Pistons: Keith Black-#KB-206, with my heads ~9.5:1 comp. ratio. TRW High Volume oil pump-Blue Printed and moly coated by Ford Power Parts in Buena Park CA. Painted lifter valley and heads with rustoleum. Headers:Headman Elite Thermo-coat (89840). 3 inch tubes with X-Pipe and SpinTech muffulers. Ignition: Accel #ACC59205, MSD-6A. Induction: Wiend Stealth manifold with Holley Street Avenger 770cfm Carb. March under drive pulley set. Edelbrock water pump. K&N Stub stack for the carb and a bunch of chrome goodies. Hauls ***! Maybe someday We can meet up and go for a round or two at the strip, what do ya think?

 

Gene, look at F-250Dude's build. It's a good, solid build for a work/play rig. You can also find answers to a lot of basic build questions by clicking here.

About the only thing I would change if it were my build is swapping the hi-volume oil pump for a stocker to limit parasitic power loss and using a hi volume water pump to compensate for the underdrive pulley setup.

Hi-vo oil pumps take extra HP to turn and really aren't a necessity until you start seeing the high side of 5000 RPM. In reality it's only a couple of HP and not a big, hairy deal, but I want all the power to the wheels I can get.

The MSD ignition is top notch. If you don't have the $$ for the MSD you could use a blueprinted Duraspark ignition. The Ford Duraspark is plenty hot for a mild build and they can be had relatively cheap.

It's not hard to make power if you have the cubic inches and exercise a little prudent judgement in your parts selection (which it looks like you're trying to do). Keep us posted!

Brad

 

i would think twice about the HV oil pump. unless you like changing oil and dizzy gears.

 

About 460 cams? I plan to use DOVE heads on my stock 1987 shortblock.
A local rebuilder stocks and recommended a Ford cam #M-6250-A460.
He said this was hard to beat for a street performer in a pickup.
Any input on this?

Tim

 

Tim,

The A460 is a decent all around cam but tends to aim slightly at the mid RPM ranges. Using an average 460 with an intake like the Performer RPM or Stealth, a Holley 750, and headers with duals, I plugged this cam into DynoSim (advanced version of DD2000) for you. Just to give you an example, the Crane 353901 beats the A460 by 23+ ft-lbs of torque at 2500 rpm, and beats it both in horsepower & torque all the way to 3500-4000. The A460 has a moderate advantage from there. The Comp 34-235-4, mentioned above, has a slight advantage in torque, 6-10 ft.-lbs over the Crane up to 4500, when the Crane takes over with a 10-15 ft.-lbs advantage through 6000. Not to say the Ford cam is no good; just depends on what you're looking for. It might be cheaper? The Crane is $165.95 from Summit, with lifters. Hope it helps, Mike

 

tim, Dove heads are fine if you want high compressin but there are other heads that work just as well, cheaper and easier to find. I'm running D3VE 97cc heads with Keith Black Flat top Hyperuretics with 9.5-9.7:1 compression ratio with a Comp Cam Extreme 4x4 Cam #34-235-4 and run on pump gas. Check out www.reincarnation-automotive.com for cylincer head info. One thing to look out for is water passeges, gaskets from varying manufactures do not line up and when your doing head swaps from early (DOVE) heads to later motors this has caused overheating problems. I would also check out the other grinds Comp Cams have in there Extreme 4x4 line,Magnum line and others, I prefer Comp Cams over Crane because they are a few dollars cheaper,more grinds and a better support staff. (Try getting some help from Crane!) Get yourself a Summit and a PAW (performance Automotive Warehouse) Catalog. Hey! bet my truck will beat your truck! Hope this helps! Jim

 

Thanks for the help. Right now I have 4 sets of DOVE heads in my garage. The last 3 sets were $50.00 a set, not too bad a price I think.

Tim

 

So Dude,
What do you think of the Rhoads compared to plain Jane lifters?
Can you burn 87 octane???

Tim

 

Tim, I prefer Rhoads because of 2 things, they seem to improve low end torque and hp and they increase the vacuum which is improtant if you have power brakes. There are fast bleed and anti-pumpup lifters and each cam manufacterer seems to have their own propriatory type but alot of these are mass manufactured by a couple of makers,sold to the cam company's who put their name on them. Rhoads is Rhoads and they make their own and have a patented design. To quote an article from Hot Rod Mag. "a hot hydraulic cam was installed with Rhoads Variable Duration Lifter's. These lifters effectively shorten low rpm duration and lift to improve both torque and throttle response at low speeds while still allowing a radical cam profile for top end power." I can personally atest to this when I first put them into my '70 Boss 302, I got tired of adjusting valves but wanted to run a big cam for top end (I was running over a .650 lift and shifting at 7500rpm) anyway I could drive it around town no problems! Yup! I can run 87 octane. Had to play with the timing alittle, dial in the distributer advance. Jim