I was looking to order a set for stage 2 of my build and got a call that they no longer make them this way. Anyone think there is a problem with the stage 2.5 317s milled to 65 cc chambers instead?

 

There's a set in the classifieds for sale

 

I appreciate the info but those are the smaller valve stage 1s with single beehive springs (unless i am not seeing what you meant). Anyway, is there any reason to decline the switch to the 317 casting instead? Max boost will be around 10 lb.

 

I wouldn't even worry about ported heads to run that amount of boost. Run your stock heads. If 10#s doesn't make the power you want... more boost.

Put the head money in the fuel system, or getting the power to the ground properly.

 

they are nolonger being made as GM in November made its last set of catheral port heads

 

Does this mean I can't send in my 243 heads to have their cnc job on them?

I would think that will always be an option as long as PRC is in business...