Ok guys i recently purchased a set of used valve springs and they were suppsed to be the hd springs after starting job i noticed the springs were identical in size as stock! So i want to know if hd valve springs are larger wether taller or wider? Any help would be appreciated. Im just scared to run 4 k if there stock!

 

Some things you just don't buy used, guy probably installed 60 lb springs and sold you his old ones.

 

BBD #60 Springs vs Stock Springs

 

i change 60 lb springs every 2 years on my sled puller. i wouldnt even think about selling my old ones.

 

Thanks for the help guys im gunna go get a lil cash back now.

 

the pac ones are only 80 on tpd

 

My industrial injection 150# makes th ose look like a joke. Lol

 

Post your 150 next to your stock ones

 

This should work

 

They don't look much sturdier than my 60# from BBD