“Kool Nut” $60 for all 16
Chevrolet Performance
Part Number: 19210731
Summit Racing $16.99 ea
https://www.summitracing.com/parts/NAL-19210731
https://outlawspeed.com.au/shop/cr99769-16
“Kool Nut” (set 16) $102
• Special rocker arm nuts are used on GM Circle Track engine
• Can be used with any stamped steel rocker arm
Specifications
• GM Part Number: 19210731
• Type: Posi-Lock / Set-screw style rocker arm nut
• Design Feature: Incorporates a set screw to lock the nut firmly onto the stud once the proper valve lash is set.
• Used for one season and changed motor