Anyone know of an off the shelf "FORGED" 351w or 302 piston that will work in the 300 L6 with stock late "bushed" rods ??????

 

One of them will work with a bushed rod, I believe it's the 351. FWIW, custom pistons can be had for about $400/set and will be exactly what you want. Most on here disagree that custom slugs are the way to go, but it isn't an impractical option. I won't go into my reasoning again because I've beat the topic to death previously.

 

Any idea what demension 351w piston will work ? They all seem to have a much higher compression height than stock 300 L6 pistons ? Perhaps the 351w pistons are being used with 240 rods ???

 

The 351 CH is only about 0.040 shorter than the 300. You could make up for that by cutting some material off the head deck surface. Another option is a 352 piston if you shave some material from the piston top. Another option is a std. bore 390 piston if your block has enough meat to go 0.050 over.

 

Silver Streak, You mentioned a custom piston set for the 300 L6 for $400, who offers them ? Thanks

 

You should be able to get them from Probe, Venolia, Ross, JE or any other piston manufacturer. Click here and check some of them out. The 302 parts start at about $350, but you only need 6. Having the pin hole enlarged will cost a little extra. One of their 302 parts could easily be machined for the correct pin height and diameter at the factory. Call Flatlander and ask for Phil, he's a good guy and has helped me out on several customer's cars.