Engine Piston Type

92NOTCH01 · May 26, 2016

Hello
I was going to order a rotating assembly with forged crankshaft, forged Pistons, and forged rods. So I emailed summit racing and he asked me what type of Pistons I wanted:
2 valve relief
4 valve relief
Domed
Etc
Could someone suggest what I would need? I just want to rebuild my 5.0 HO engine with forged internals. I would be using stock cams and cylinder heads for now.

Thank you in advance

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mikestang63 · May 26, 2016

stock block? complete waste of money using forged internals. Not to sound harsh, but if you are throwing forged parts in a stock block with stock heads and a cam. and don't know the difference between domed vs. flat top pistons, I would not be ordering parts. You can most likely re- use your stock crank and rods- just have them checked and maybe resized with matching bearings from a machine shopFirst- does the block need a hone or does it need to be bored out. That will determine the size of the pistons You may be able to re use the stock pistons with new rings.

92NOTCH01 · May 26, 2016

mikestang63 said:
stock block? complete waste of money using forged internals. Not to sound harsh, but if you are throwing forged parts in a stock block with stock heads and a cam. and don't know the difference between domed vs. flat top pistons, I would not be ordering parts. You can most likely re- use your stock crank and rods- just have them checked and maybe resized with matching bearings from a machine shopFirst- does the block need a hone or does it need to be bored out. That will determine the size of the pistons You may be able to re use the stock pistons with new rings.

Dude don't worry about sounding harsh. Just wanted to know if what I was saying made any sense. I love cars but I'm not really to good with how to put an engine together. The reason I wanted to get forged internals was to possibly throw a turbo or supercharger on it at a later date. I saw a lot of the kits seem to bore out the engine and increase displacement. Am I making any sense?

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mikestang63 · May 26, 2016

92NOTCH01 said:
Dude don't worry about sounding harsh. Just wanted to know if what I was saying made any sense. I love cars but I'm not really to good with how to put an engine together. The reason I wanted to get forged internals was to possibly throw a turbo or supercharger on it at a later date. I saw a lot of the kits seem to bore out the engine and increase displacement. Am I making any sense?

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sorry no.

1. make a plan and goal
2. have a budget
3. build the motor based on 1 & 2

The stock 5.0 block begins to get sketchy around 400 or so hp. Adding a power adder only increases the chance of cracking the block in half. Forged internals will not stop the block from splitting in two. Make sense?

Save the money for forged parts when you build a Dart afterarket block. If you are planning on adding a power adder, then you should build the stock block based motor for that goal. The first thing you do is get the camshaft and build the motor around that. It is not that much more expensive to build a 331 or 347 than to build a 302 or 306. The extra cost is in the machine work and stroker rods. Again, go back to # 1,2,3. If you plan on building a stroker 331, your cam , heads, crank, rods will be different choices than a 302. If you know you will add a blower, same thing- a blower cam, pistons, valve springs, rings, etc. Like I said, it may pay for you to contact someone like Ed Curtis or Woody at FordStrokers and pay them for their knowledge to build you a motor that will perform and last, rather than one assembled with mismatched parts that will underperform or worse.

Know that MANY guys run 400+ rear wheel hp on stock block 302 cubic inch factory motors inclucing me, with a good H/C/I, power adder,and a good tune. That is more than enough power to split your block in half and to get these cars in the 11's.. Another budget option is a used 5.0 explorer motor. They come factory with GT40 heads and intake and with a cam and valve spring change can easily make 270ish rwhp for well under a grand.

Lastly, remember whenever you add power, that impacts every other system and component- cooling, braking, suspension, transmission, rear end. Those need to be addresed or you will find the weak link. These cars came factory with 225 flywheel HP,.

92NOTCH01 · May 26, 2016

mikestang63 said:
sorry no.

1. make a plan and goal
2. have a budget
3. build the motor based on 1 & 2

The stock 5.0 block begins to get sketchy around 400 or so hp. Adding a power adder only increases the chance of cracking the block in half. Forged internals will not stop the block from splitting in two. Make sense?

Save the money for forged parts when you build a Dart afterarket block. If you are planning on adding a power adder, then you should build the stock block based motor for that goal. The first thing you do is get the camshaft and build the motor around that. It is not that much more expensive to build a 331 or 347 than to build a 302 or 306. The extra cost is in the machine work and stroker rods. Again, go back to # 1,2,3. If you plan on building a stroker 331, your cam , heads, crank, rods will be different choices than a 302. If you know you will add a blower, same thing- a blower cam, pistons, valve springs, rings, etc. Like I said, it may pay for you to contact someone like Ed Curtis or Woody at FordStrokers and pay them for their knowledge to build you a motor that will perform and last, rather than one assembled with mismatched parts that will underperform or worse.

Know that MANY guys run 400+ rear wheel hp on stock block 302 cubic inch factory motors inclucing me, with a good H/C/I, power adder,and a good tune. That is more than enough power to split your block in half and to get these cars in the 11's.. Another budget option is a used 5.0 explorer motor. They come factory with GT40 heads and intake and with a cam and valve spring change can easily make 270ish rwhp for well under a grand.

Lastly, remember whenever you add power, that impacts every other system and component- cooling, braking, suspension, transmission, rear end. Those need to be addresed or you will find the weak link. These cars came factory with 225 flywheel HP,.

Thanks for advice, appreciate

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dcurtis · May 27, 2016

Definetly take the advice on the aftermarket block, my power level is easily over 400 and my stock block split, I now have the dart block with same internals and no problems, well other than a wire issue in another thread in here lol, definetly think about where you want the engine, I now adays wouldn't even chance a power adder on a factory block even though I've seen many cars pushing in excess of 500 but they don't know when or where they may blow

92NOTCH01 · May 27, 2016

dcurtis said:
Definetly take the advice on the aftermarket block, my power level is easily over 400 and my stock block split, I now have the dart block with same internals and no problems, well other than a wire issue in another thread in here lol, definetly think about where you want the engine, I now adays wouldn't even chance a power adder on a factory block even though I've seen many cars pushing in excess of 500 but they don't know when or where they may blow

I took it to heart looking at different blocks now. Man this is expensive!

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dcurtis · May 27, 2016

Oh and i have no power adder, just a high compression 347

92NOTCH01 · May 27, 2016

dcurtis said:
Oh and i have no power adder, just a high compression 347

I know I definitely want to boost it either super charger or big turbo

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dcurtis · May 27, 2016

Very, I'd grab a dart sportsman if you could, honestly don't remember what I paid but it's well worth the insurance of knowing

92NOTCH01 · May 27, 2016

dcurtis said:
Very, I'd grab a dart sportsman if you could, honestly don't remember what I paid but it's well worth the insurance of knowing

One of these?

http://www.jegs.com/p/Dart/Dart-Iron-Eagle-Small-Block-Ford-Engine-Blocks/755751/10002/-1

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TOOLOW91 · May 27, 2016

Dart shp will support 1000hp . Dart underrates them . Many engine builders use them and stand behind them . I have an SHP in my car

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dcurtis · May 28, 2016

Yes, the 4.000x302 is the one I got, another good thing is you can start out with a standard bore and take it all the way to 4.185 I believe, I was originally gonna go with a 363 but decided to stick with a 347 so if something happens down the road I have plenty of bore left to go through.

a91what · May 28, 2016

Wooohhhhh there fellas! First can you tell us what your goal is?

How much power?
Race car or streetcar?
Budget?

I have a STOCK block and stock internals supercharged. Great car fun to drive stupid fun power.
I see a lot of guys get in over there head with a build that starts out strong then they run out of money or realize it's too much of a project. Before we order any parts or blocks let's talk goals.

92NOTCH01 · May 28, 2016

dcurtis said:
Yes, the 4.000x302 is the one I got, another good thing is you can start out with a standard bore and take it all the way to 4.185 I believe, I was originally gonna go with a 363 but decided to stick with a 347 so if something happens down the road I have plenty of bore left to go through.

Ahhh ok I understand

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92NOTCH01 · May 28, 2016

a91what said:
Wooohhhhh there fellas! First can you tell us what your goal is?

How much power?
Race car or streetcar?
Budget?

I have a STOCK block and stock internals supercharged. Great car fun to drive stupid fun power.
I see a lot of guys get in over there head with a build that starts out strong then they run out of money or realize it's too much of a project. Before we order any parts or blocks let's talk goals.

300-400 whp
Street car
Trying to get an idea of how much this will cost

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a91what · May 28, 2016

Explorer longblock and blower cam- 1000$ish
On3 turbo kit (budget kit)- 1500$ish
Injectors, tuning ect.- 600-1200$ ish....

10psi= 350+
14psi=400+
20psi= flatbed home.

92NOTCH01 · May 28, 2016

a91what said:
Explorer longblock and blower cam- 1000$ish
On3 turbo kit (budget kit)- 1500$ish
Injectors, tuning ect.- 600-1200$ ish....

10psi= 350+
14psi=400+
20psi= flatbed home.

LOL flatbed [emoji856]

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a91what · May 28, 2016

Conversly.

331 stroker kit of your choice 1200-2200$ (you can spend less someone will chime in)
Tfs top end kit 2000ish....

Injectors, maf, maybe tune ect. 600-1200$ish.

350+hp all day.

92NOTCH01 · May 29, 2016

a91what said:
Conversly.

331 stroker kit of your choice 1200-2200$ (you can spend less someone will chime in)
Tfs top end kit 2000ish....

Injectors, maf, maybe tune ect. 600-1200$ish.

350+hp all day.

I assume this is on a stock block right?

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Engine Piston Type

92NOTCH01

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