1hdt conrod and piston (1 Viewer)

[TACOLC]

I rebuilding an 1HDT 1990 engine and I change one con rod but the weight is not the same as the others.... First question : can I replace 6 con rod or I only replace the broken one otherwise is not the same weight?

Second question: What is the difference between this two number for piston : 13101-17020-02 or 13101-17040-02

13101-17020-02 seems not available so can I put the other piston 13101-17040-02?

 

[Kernal]

@TACOLC : were you able to figure out if the 13101-17040-02 piston is a direct replacement for the 13101-17020-02 piston??
Same connecting rods and rings for both??