Building this 52 from a shell,tube back half,4 link,4" body drop,mustang front brakes,408 stroker LS w/ Turbo,4l80 trans.Clear coated the patina and called it good.Do any of you know if the lower rocker trim is the same on a 52ish Chevy?Im looking for the passenger side and it doesnt have to be perfect if anyone has a line on one I would appreciate any info.TIA

52ratmod - welcome to FP and the madness.

I am told that a lot of trim pieces interchange with the Chevy. I would also encourage you to download a copy of the POCI Smoke Signals magazine for the their want ads from the POCI website. You might get luck.

Also try Franks Pontiac Parts in 29 Palms California. They MAY have something too.

Hey, welcome to the neighborhood! I love the gold dash, cool ride! 

I'm told that a lot of the lower trim parts are interchangeable with Chevy.

You can download a copy of the POCI's Smoke Signals magazine for their want ads. You might find someone selling the trim you need.     https://www.poci.org/

You can also try contacting Franks Pontiac Parts in 29 Palms CA, they MAY have something.   https://www.frankspontiacparts.com/

What a fabulous looking car. Kiwi - take notes.