Piston Q's

[papawfalcon]

Im planning on building a 200 and boring 30 over. And I thought I had seen a topic on using 2.3 pistons would they work with what im wanting to do? Or another idea? Ive build small block V8's before but not any sixes.
Any ideas will be great.

 

[matt1967]

Im planning on building a 200 and boring 30 over. And I thought I had seen a topic on using 2.3 pistons would they work with what im wanting to do? Or another idea? Ive build small block V8's before but not any sixes.
Any ideas will be great.

yes Mike sells them as the cast speed pro flat tops. he'll send you 1 and 1/2 set of them ( 6 pistions ). it's what I used in my 200 I'm currently building. they are 2.3 HSC Tempo/ Taurus pistions, the OHC 2.3 pistions WILL NOT work

 

[Hot 6t Falcon]

A piston from an HSC 141ci 2.3L I/4 can be used in your 200/250 I/6 to achieve a cast flat-top piston. It has the same 3.68â€￾ bore, 1.50â€￾ compression height, and a .9122â€￾ pin diameter as a stock 200/250 piston. The KB-SilvoLite Piston Company’s part number is #1185. Sealed Power is 489P.

Using this piston will raise your compression. If you decide to use this piston, do some serious compression ratio math before you mill your head. Too much compression is hard to undo.

Goto
http://falconperformance.sundog.net/compcalculator.asp
Add .030 to the bore (3.71). Change the head gasket thickness to .044.
Change the piston to flat top and the "Dish/Valve Relief/Dome Volume" cc to 0.

You didn't say which head you are using. so I am not certain what to enter for the "Combustion Chamber Volume" in cc

As stated Mike has these pistons: goto
http://www.classicinlines.com/proddetail.asp?prod=SLP-200-CPF

Good Luck

 

[wsa111]

Dennis, i now use the flat top pistons. The weight is close to 585 grams, where the dished pistons have a very heavy piston pin which bring the total weight to the 635 area.

The loss of piston weight is a real plus.

The only negitive diference is the piston pin offset, the dished piston has a .060 offset while the tempo piston has a .090 offset.

That helps low end torque, but causes more side load piston-cylinder wall load.

I will take the extra compression, but that pin offset is a negitive in a high rpm engine.

Can it be noticed???? William

 

[XFlow_Fairlane]

those flat tops will raise your compression. it might get too high for a turbo then

let me know if you are looking for any help. I am building a good sized inline six stash here in Anna. the fairlane is coming back to town in a couple weeks along with more stash. let me know if you need some help building a motor (I durrently have one in process right now)

 

[mustube]

So what would the ideal compression ratio be for a turbo 200?

 

[papawfalcon]

WSA111 its a 78' block and head

when I used the numbers you posted on the calculater it only gave me an estimated HP was only 76 at 3000 rpm's ????? and only gaining 3 cubes not much for what its going to cost