[DickH]

If you just want to be able to spray more just change out your rods and pistons, if you want more power off the bottle as well seriously look into your options with a boss 5.0 block

 

[joswo1980]

If you just want to be able to spray more just change out your rods and pistons, if you want more power off the bottle as well seriously look into your options with a boss 5.0 block

Would I just be able to buy just the block or would l have to buy complete? Is it just the 4.6 stroked with a better block ?

 

[bulloch27]

To each their own, if the only reason you're thinking about a larger displacement is to spray more you're heading in the wrong direction. The bottom end of the 4.6 isn't the limiting factor on nitrous, it's the intake. The stock bottom end will hold a 150 shot, regardless of what you read. The intake design and the returnless fuel system are the problems. If I was going to dump 4k in my 4.6 or any modular for that matter I would do a stock rebuild on the bottom end but go with a better rod and a forged piston, minimal expense. The stock block and crank will hold just fine into the 700hp range. The remaining money would go towards a set of TF heads and cams and a return style fuel system. Change to an intake that doesn't have a huge plenum at the bottom for fuel to puddle in and you can spray 150 now as long as your pump will support the flow. The little things will nickle and dime you to death, I know cause of done this for a long time. Whatever you decide to do, just sit down and add everything up and look at the total cost of each option and compare dollar amounts for power gained. You're just not going to see a huge return by only adding displacement. To take advantage of increased displacement you have to go larger on heads cams and intake just to operate at the same level of efficiency.

 

[slow02gt]

stock intake will hold a 150 just fine...a 175 too....so can the stock shortblock..

and the 5.0 block is the block itself with the bore..its not a 4.6 stroker to a 5.0...its a completely new block

 

[joswo1980]

To each their own, if the only reason you're thinking about a larger displacement is to spray more you're heading in the wrong direction. The bottom end of the 4.6 isn't the limiting factor on nitrous, it's the intake. The stock bottom end will hold a 150 shot, regardless of what you read. The intake design and the returnless fuel system are the problems. If I was going to dump 4k in my 4.6 or any modular for that matter I would do a stock rebuild on the bottom end but go with a better rod and a forged piston, minimal expense. The stock block and crank will hold just fine into the 700hp range. The remaining money would go towards a set of TF heads and cams and a return style fuel system. Change to an intake that doesn't have a huge plenum at the bottom for fuel to puddle in and you can spray 150 now as long as your pump will support the flow. The little things will nickle and dime you to death, I know cause of done this for a long time. Whatever you decide to do, just sit down and add everything up and look at the total cost of each option and compare dollar amounts for power gained. You're just not going to see a huge return by only adding displacement. To take advantage of increased displacement you have to go larger on heads cams and intake just to operate at the same level of efficiency.

That is some pretty good damn advice, im gonna do exactly that, thanks

 

[86er]

We're still talking about spending $700 on an intake to make something work when he's already said he wants to reuse the stock intake...................... Kind of a pointless argument here.

it was used to mute your untrue points on the 5.4...................

 

[joswo1980]

WHat do u guys recommend for pistons and rods, there is so many kinds, I know I should go forged but theres also diff design. Ive been lookn at the whole rebuils kits at summit as well as the typhoon intake ?

 

[joswo1980]

THey also got whole tf head kits and all together would be in my price range.so all I have to do now,is figure out piston design and order the stuff

 

[bulloch27]

it was used to mute your untrue points on the 5.4...................

You haven't muted anything, I agree with everything you said. $700 for an intake you won't have to buy if you stay 4.6 and off the shelf headers/exhaust. I couldn't agree more with everything you say. Still waiting on you to push the add button on the calculator to figure the rest out.

 

[joswo1980]

????