[Calderone]

Hi guys, take a look at this picture :
Its a 383 SBC Wiseco Forged piston kit of a friend of mine.
His engine guy told him the oil control rings that came on the set
are wrong because he can put 2 feelers in there.
Im not sure an we want to confirm before install this set in.
What you think?
Thanks

[BOBCRMAN@aol.com]

He is correct. The oil ring support rails are missing..

Because the pin intrudes into the ring groove. An oil support ring is installed then the three piece oil ring. This leaves two rings on bottom. Then expander, then single ring on top.

[Calderone]

Thanks Bob so what we are supposed to do now ?
what do we need ?
thanks

[BOBCRMAN@aol.com]

Get oil ring support rails from piston manufacturer. Or they are available from Keith Black/Silvolite or SRP.

[Calderone]

thanks !

[crussell85]

Originally Posted by BOBCRMAN@aol.com

Get oil ring support rails from piston manufacturer. Or they are available from Keith Black/Silvolite or SRP.

do these have any downfalls to them. would it be better to run a 5.7 rod instead of the 6 inch rod so you would not have these or does it not really matter?

[BOBCRMAN@aol.com]

If you want to run the 6" long rod there is not too much you can do differently. Oher than run a two ring piston.

Performance wise, on a street engine, there is little to no difference. Between a 5.7 and a 6" rod.

The rails, properly installed, are no problem. A better alternative than the old method of "pinning" the lower oil rail. This method led to too much oil rail deflection at the pin hole. Due to no rail support.

The rail support ring is used on many of the stroker BBC's that I build. No problems.