500 HP What valve springs to use?
09-20-2005 | 08:31 AM
#1
Thread Starter
Registered
Joined: Sep 2005
Posts: 1
Likes: 0
500 HP What valve springs to use?
I have a 1999 Formula Fastech with 500 HP motors. Have always heard that after a few hundred hours that valve springs start breaking. I'm pulling heads this winter, what is best springs to put back into motor. Any suggestions?
09-20-2005 | 09:06 AM
#2
MarineKinetics
Joined: Oct 2002
Posts: 942
Likes: 4
From: Rochester, NY
Re: 500 HP What valve springs to use?
Dean,
The Crane replacement is Part # 99896. Depending on your lifters and installed ht. you can also use the Isky #8005/8205 (upgrade S/SP series) or the K-Motion 850 with good results.
Bob
The Crane replacement is Part # 99896. Depending on your lifters and installed ht. you can also use the Isky #8005/8205 (upgrade S/SP series) or the K-Motion 850 with good results.
Bob
09-20-2005 | 09:07 AM
#3
Registered
Joined: Jul 2004
Posts: 8,908
Likes: 9
From: Long Island,New York
Re: 500 HP What valve springs to use?
Originally Posted by dean brown
I have a 1999 Formula Fastech with 500 HP motors. Have always heard that after a few hundred hours that valve springs start breaking. I'm pulling heads this winter, what is best springs to put back into motor. Any suggestions?
