Differences between the NA motor and Turbo motor?

[Mustangman570]

Obviously one motor has a turbo hanging off the side. Is there a difference in the casting number on the head or block? I know that the red valve cover is usually a turbo motor, but I think I have an NA motor with a turbo valve cover that someone put on for looks. If I pull the oil pan can I tell the difference between the two? If so what are the differences.

 

Does anyone happen to have a picture of a stock turbo piston and stock NA piston? I though about pulling a spark plug and looking at the top of the piston with a bore scope, but I don't have a reference picture to compare. 

 

Thank you in advance.

[k31th]

It'll have a hole in the exhaust side of the oil sump if it's a turbo motor. If it's an N/A, that'll be just covered over. It's probably just an N/A.

 

The N/A pistons are relatively flat on top and the turbo ones have a recess to lower the compression ratio. Would be tough to spot on a borescope, but possible.

[Mustangman570]

This motor has a hole in the oil sup where the turbo oil drain would be. The NA motors I have all have the same boss in the pan, the hole is just blocked off. This is a really confusing motor. 

[tazzanz]

Really confusing motor???  Simple as they get.

[4321]

The sumps are the same just the casting is drilled & tapped. On a turbo head & block are the same. Exhaust valves ,springs, rods & pistons are different none of which you can see from the outside.

[k31th]

I didn't say a "place where the hole should be", I said "a hole" (e.g. like 4321 said, drilled and tapped) haha

 

The N/A motor has an obvious casting point where this hole and flange would be for the turbo drain, but there is obviously no pipe there.

[bossmang]

n/a and turbo motors are the same and same as lpg motors. both n/a and lpg motor good for 400++++ kws easily as has fpv rods.

 

just ask clug fg

[Mustangman570]

20 hours ago, tazzanz said:

Really confusing motor???  Simple as they get.

Try reading my whole post next time.

[Mustangman570]

On 6/29/2018 at 7:43 AM, k31th said:

I didn't say a "place where the hole should be", I said "a hole" (e.g. like 4321 said, drilled and tapped) haha

 

The N/A motor has an obvious casting point where this hole and flange would be for the turbo drain, but there is obviously no pipe there.

I have attached a pic of the oil drain back on the engine that is confusing me along with a pic of a confirmed NA motor. As you can see the hole is drilled through to the pan and the 2 bolt holes are drilled and tapped. The other pic is what I was referring to by "a place where the hole should be."

 

See why I'm confused? Red valve cover (I know a can of paint can make any valve cover red), NA exhaust manifold, Turbo intake manifold, NA fuel injectors. BUT the oil drain hole is drilled and the turbo oil supply hole is open.

[k31th]

Are they both your motors?