408w or 460
11-29-2012, 04:47 PM
#1
Senior Member
Thread Starter
408w or 460
Hey guys I plan on dropping a motor in my 85 f-150 flareside 2wd. It will have a manual tranny and a 9 inch rear end. I want a FAST motor that will be reliable. Should I go with a 408w or a 460.
I am shooting for 500 hp. I want a streetable truck that I can cruise around in and show off. I might race the typical race down the road a few times, but I want this truck to fly. I know that the truck is already pretty light, so I dont think it should be a problem.
I think a 460 would be cheaper to build, but what is your opinion experience? 408w or 460? Thanks!
I am shooting for 500 hp. I want a streetable truck that I can cruise around in and show off. I might race the typical race down the road a few times, but I want this truck to fly. I know that the truck is already pretty light, so I dont think it should be a problem.
I think a 460 would be cheaper to build, but what is your opinion experience? 408w or 460? Thanks!
11-29-2012, 06:23 PM
#7
Senior Member
Here is my thought:
Whichever block you can find cheaper between a 351W or 460. Cheapest block wins. That way you'll have more money for your foundation and the aluminum heads you'll need.
I have to disagree with the 429 suggestion. I'm not saying that it's a great engine because it is, but the 429 is in the same engine family as the 460 and high performance cast iron heads (in this case Boss) are very much outdated unless you're building a show truck.
Aluminum aftermarket heads are the way to go if one is looking for pure performance.
Whichever block you can find cheaper between a 351W or 460. Cheapest block wins. That way you'll have more money for your foundation and the aluminum heads you'll need.
I have to disagree with the 429 suggestion. I'm not saying that it's a great engine because it is, but the 429 is in the same engine family as the 460 and high performance cast iron heads (in this case Boss) are very much outdated unless you're building a show truck.
Aluminum aftermarket heads are the way to go if one is looking for pure performance.
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11-29-2012, 07:23 PM
#8
Senior Member
Thread Starter
I also was thinking Aluminum heads, plus up in Mn, 460's are far more available than a 429. I was thinking of rebuilding the 460, maybe bore it i think .060 which would be 466 CID???
For 500hp would I need a forged crank and rods? or can the cast ones hold up to that much?
For 500hp would I need a forged crank and rods? or can the cast ones hold up to that much?
11-29-2012, 07:39 PM
#10
Senior Member
Here is my thought:
Whichever block you can find cheaper between a 351W or 460. Cheapest block wins. That way you'll have more money for your foundation and the aluminum heads you'll need.
I have to disagree with the 429 suggestion. I'm not saying that it's a great engine because it is, but the 429 is in the same engine family as the 460 and high performance cast iron heads (in this case Boss) are very much outdated unless you're building a show truck.
Aluminum aftermarket heads are the way to go if one is looking for pure performance.
Whichever block you can find cheaper between a 351W or 460. Cheapest block wins. That way you'll have more money for your foundation and the aluminum heads you'll need.
I have to disagree with the 429 suggestion. I'm not saying that it's a great engine because it is, but the 429 is in the same engine family as the 460 and high performance cast iron heads (in this case Boss) are very much outdated unless you're building a show truck.
Aluminum aftermarket heads are the way to go if one is looking for pure performance.
The 460 is a big friendly oaf, strong sturdy and heavy, but a tickle more cam and such and you ve got an easy 400 horses, even with mostly stock guts, I saw one built for our redneck truck rally series a few years ago. The recipe was a good running stock 460, with a set of 429 small chamber heads, big 305 magnum comp cam, stock iron intake, an old 780 holley, headers and 500 at the crank on the dyno, the catch with that combo, is the compression with small chamber heads on a later bottom end, needs race gas. And it smoked like a frenchman.
A more relevant combo, a buddy of mine put one together, useing the heads form the smoke bomb mentioned above, refitted with cobra jet size valves, kb pistons, a weiand stealth intake, very light porting and the largest comp hydrualic 4x4 extreme cam, it turned out a big scary monster, destroying C6s on the first shift, and reving so quick like a small block, or a dremel tool. It was a mistake, his plan was a, get this tri purpose rig, a combination street strip and PULLING truck, figuring a 9" rear for street and drags, and a quick swap to a dana 60 to pull in super stock, the mistake was not seeing the 400 cubic inch rule for super stock pull trucks.