Small Block Chevy headers. I bought a set of stainless steel long tube headers for my sbc and they don’t work on angled plug heads. I only tried to fit them while engine is on stand so no scratches or anything. I paid $350.00 plus shipping so my loss is your gain. I know they fit ‘68-‘78 Nova and first generation Camaro, you can probably cross reference to see if they meet your needs. Gaskets, bolts and reducers included.