I need some help guys;
Some of you maybe following my build thread in General VR4 Discussions but this is an imperative and time sensitive enough subject to make a separate post in Technical Discussions.
I have given Jim of Justice Racing of Frederick, MD my newly purchased replacement stock rebuilt small block and to disassemble and inspect (stock pistons and rods with Nippon's and Clevite's). As well as the pistons and rods (Ross and Eagle) pulled from the bad bored out block that was originally in GVR4#996 when I purchased her.
The news is this: The crank (only in need of polishing) and Eagle rods are in excellent condition and re-usable for race use. All of the Ross rings are bad and one of the Ross pistons have sustained significant deterioration from long term detonation. The stock pistons are usable, but unfortunately the block cylinder walls (stock 85mm) are worn enough that stock pistons will not be efficient for race related use. The next bore size would be 85.5mm (+0.5mm bore/cylinder).
My questions for the forum are; What pistons and from where should I buy for 85.5mm bore (I have been told in person to go with Ross)? And what displacement (in Liters) does 85.5mm bore make?