Valve Spring options

stocker396 · 06-15-2022, 01:06 PM

Looking at replacing my valve springs. (396/350 combo) conventional cam (non-square nose) solid Smith Lifters. Currently using COMP-999 conventional spring, Was told by Bullet to Use the PAC-1427's conical style. These are now "made in China" and I have heard some complaints about durability and longevity with them. Are they the only option
now? Are they that bad? Used to use Isky tool room but had an availability issue last time. Bullet said that the COMP's are too much and could be causing harmonic issues.
FYI also ordering a different cam when I make the change. Im looking for some input with real word results if possible.
thanks in advance

06-15-2022, 01:06 PM	#1
stocker396 Member Join Date: Dec 2013 Location: Santa Fe TEXAS Posts: 109 Likes: 2 Liked 58 Times in 16 Posts	Valve Spring options Looking at replacing my valve springs. (396/350 combo) conventional cam (non-square nose) solid Smith Lifters. Currently using COMP-999 conventional spring, Was told by Bullet to Use the PAC-1427's conical style. These are now "made in China" and I have heard some complaints about durability and longevity with them. Are they the only option now? Are they that bad? Used to use Isky tool room but had an availability issue last time. Bullet said that the COMP's are too much and could be causing harmonic issues. FYI also ordering a different cam when I make the change. Im looking for some input with real word results if possible. thanks in advance __________________ Overkill is Under-rated