Hello what is the lowest compression pistons you can get for 58cc heads?

I seen they have them down to 8.5 for 383 stickers but I am looking for ones for a 350.

can you mill the piston tops like they do on diesel engines?

thanks Jim

 

There are alot of off-the-shelf pistons at around -18 or -20ccs... but there are many other factors affecting compression ratio.
I don't know why the head volume would make a difference if you're trying to lower compression - problems could arise when trying to raise it (using dome pistons).

 

Ok say I am considerion using a turbo set up. the lower I lower my compression the more boost I can run, but because my head volume is 58cc the lowest I can get is 9.2 compression and I like to get it to 8.0 to 8.5 compression.

 

Head volume means alot to compression. Are you saying it doesnt matter?

 

No, I was wondering why he's thinking there's a limitation imposed by head volume on his choice of low-compression pistons.

The "for 58cc heads" he stated in his original post was what I was referring to.

 

Never mind the 9.2 compression will be fine for a street turbo setup.

I should have read alittle more b4 posting.

Thanks

 

Without knowing anything about your engine or what variables you're considering... with stock bore, rod length, compression height, gaskets, deck height, you could use a set of 20cc pistons to get down to ~8.8:1.

To go much further than that, you'll probably need some custom pistons.

 

I am for sure which way I want to go with the engine.

I like to have around 500 to 600 fwhp with great torq in the low to mid range if I deside to turbo.

The car is going to be more of weekend & car show car. it may see the 1/8 drag strip once just to get a time on it.

It is a 95lt1 from a TA with a 6 speed trans that will be put in a 96 mustang.