Sorry to bother anyone with this topic but I would greatly appreciate the feed back. I have a set of pr30 pistons and Probe rods. Obivously anyone will say that these will not fit unless you,

1. Have the rods narrowed to fit in the pistons
2. Have the pistons machined to accept conventional style Circle clips

After taking the my rods to a local machine shop to have the tops narrowed, the machinist pointed out that the oem press pins would not keep the pins anchored in the pistons with my rods and that I would have to get the pistons machined to fit circle clips. He mentioned that he would to it but did not have a machine for this procedure.

I,ve read a dozen threads on this topic, but have yet to find one where someone has actually done this. My questions is, has anyone had this procedure done to there OEM pistons?

 

why not just get forged pistons? thats the weakest point in the bottom end anyways. well depending what motor you have

 

I do, but midway through my build I decided to go NA instead of forced induction . I wanted a set of PR30's so I could get 11.5:1, plus the forged pistons I have are .50mm over and I allready had the block machined to .25mm over for my PR30's which are oversized.

I guess I should have done more homework on this.


Modified by DC_Legacy at 8:28 PM 9/8/2007

 

use stock rods. problem solved.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doood &raquo;</TD></TR><TR><TD CLASS="quote">use stock rods. problem solved.</TD></TR></TABLE>

I would but im building an LS Vtec and I wanted to use forged rods on the bottomend to make it more durable.

 

stock ls rods are not the problem. the rod bolts are. replace them with arp's and have the rods resized.

 

def use stock rods with arp cheaper and easier way to go.

 

use the stock rods and resize it with arp rod bolts. if u want to u can also use the arp vtec rod bolts. have it machined for a bigger hole and your all set.