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I've got a 68' 460 Im guessing, has C8VE heads and factory 4v intake. engine came out of a 68 or 69 Lincoln. It runs great right now, holds around 60lbs of oil pressure has no knocks or ticks. Has factory manifolds. Right now it is sitting in my 80' F-250. It has a c-6 behind it with 3.06 rear and it will roast the tires from a dead stop. So Im not looking to tear into the shortblock of this thing knowing that it runs good and has plenty of power. Only problem is, it is running rich. It has a 750 on it also . Well due to some issues, Im having to take the motor out and try to find a replacement 351W to put back in it. Im wanting to put the 460 in a car though and was wondering what would be some good upgrades to do to it while Ive got it out. Also would like to lighten it up a bit. I guess im gonna limit myself to around 1000$ beacuse Im having to put a load of money into the 4 speed toploader,clutch,bellhousing,etc.. i plan on putting behind it. So any help or ideas would be great.
In this order - headers, ignition (basic tuneup w/good parts, and rebuild & recurve dizzy), and intake. Pop for a replacement timing set, also. It's $50 well spent and will save you a lot of grief some dark, rainy night. If you have the heads off and still have a few bucks in the budget, install new seals, have the guides checked, and have the exhaust ports opened up.
I planned on talking the heads off, I was thinking it needed hardend seat being c8's? Im was thinking double roller timing chain and I was going to convert my points dizzy with the petronex setup. Sound good so far? As far as the intake goes I don't know who makes the best for it. I know in FE's the RPM intake is the way to go, but no idea on a 460. I Dont want to lose compression when I take my heads off by using thick head gaskets back, do you recommend anything thats thin enough to keep the 10.5:1 cr? Thats what Ive read it has anyways, and I know I cant get it to run off 87 or 89 decent. One last question, later on would it be worth it to install roller rockers and how hard is it?
I guess that all the questions I have for now, thanks Brad.
If you have the heads off the hardened seats are a good idea. Go ahead and have guides done at the same time. Roller rockers aren't hard, as several companies make good ones for these early heads. Relatively expensive, though, and probably not an expense that's warranted for a simple freshening of a mostly-stock short block. Retaining compression won't be a problem. Just make sure to use good gaskets - something in the FelPro or Mr. Gasket premium line will do nicely. With your standard short-block setup I don't know that I'd go double row on the timing chain just yet. A good single row roller setup will do fine and won't set you back quite as much (and won't require a deeper timing cover like some double row units).
As far as the intake goes, it may be hard to beat your stock intake for your application. Until you get into a more radical cam the stock intake will actually make more off-idle power than just about any aftermarket unit. The Edlebrock Performer is almost identical to the stocker. The Performer RPM will support more cam, but at the expense of bottom end response, especially with your stock cam. The Weiand Stealth, a perennial favorite for 460 build ups, is simply too much intake for your cam and heads. It will kill off the low-end and your cam won't support the RPM needed to really utilize the flow capabilities of the Stealth.
In short, do what you are already planning and button everything back together with good gaskets. For your app a good set of Thorley Tri-Y headers would maximize the low-end and really wake up your truck. Other than that, take a lot of time tuning the carb and timing to maximize power, then drive the heck out of it!
Can I use a Performer intake so shave a little weight off, or is it going to hurt me? Im sure in the future I will be doing more than this, but for now I just need to get it on the road before it goes down hill sitting.
Considering the tonnage you are lugging around (the truck, not you ) 15 or 20 lbs saved on the intake won't be worth the expense. I'd probably put the money aside for when you get ready to really dig into the engine.
I swapped my stock intake (86) for a supposed piece-o-crap Offenhauser that I got on ebay. The "performers" and "rpms", are supposed to be way better than the single plane that I have. But, I got a BIG improvement from 2500-5500. It screams as it pulls.
And if your old stock intake is as heavy as mine was, you darn sure better have some help or use a hoist to lift it off. Did mine weigh 100lbs?? it sure felt like it. I got my intake off ebay for 120,and I can pick it up with one hand. For me, it was worth changing. Especially since I will add headers and cam later. My 5 cents As for weight, my F250/460 isnt fat, its just big boned!
Well I got the block out tonight were I could finally read the casting numbers. I still gotta take the oil pan off and look at the crank. The number on the block was C9VE-B,but it would be nice to know what Im working with here.
Well so much for the affordable upgrades, pulled the heads and seven of the clylinders were fine, but the 8th one looked like it had gotten hot and the walls were pitted Soooooo I need to know somthing here. I dont have the time to have this thing sent off and bored. Every shop around here is backed up two weeks. I have another 460 block, D1VE that is standard bore and the walls are fine on it. Can I take my rotating assembly and put it in the D1 block with new bearings and rings?? Well givin that my crank isn't grooved or damaged.