Hi, I'm bolting up my headers to my shiny new aluminum heads. Yikes! astoundingly easy to get a cross-thread disaster! So I look up on summit racing and am astounded at the cost for a stud kit: https://www.summitracing.com/parts/arp-100-1412/overview/make/chevrolet -- a bargain at about $50 Or the low brow Mr Gasket header studs: https://www.summitracing.com/parts/mrg-6312/overview/ for $34. At least its not this kit -- maybe for the builder billing a Silicon Valley billionaire as he builds a $250K pro street? https://www.summitracing.com/parts/arp-400-1400/overview/make/chevrolet ($138) What's the difference? (besides the shiny finish). So I did find these: https://www.summitracing.com/parts/rnb-675-003/overview/ for the bargain amount of $9. Of course I'd need to purchase some hex nuts! Can anyone shed any light on this? My 1971 Camaro Sports Coupe is a driver. Thanks!