1970 Chevelle cowl hood spring question

[MJV1953]

A friend of mine has a 1970 Chevelle with a working cowl hood on it. The hood springs on the car do not hold the hood when open to prevent it from sagging and thus he needs a stick to keep it open . My question is: Are the 1970 Chevelle hood springs on a working cowl hood different from regular hood springs? If yes, who sells the best 1970 Chevelle cowl hood springs to solve this problem? Thanks

[SS427]

Standard hood springs have 26 coils. Cowl hood springs have 29 coils and the spring is smaller in diameter than the standard spring. Up until a couple of years ago you could still buy these NOS from Chevrolet. Now you can still find them on Facebook and ebay. I believe most of the reproduction retailers sell a replacement spring as well. They are hit or miss whether they will hold the hood open or not.