Springs?
 

At what point does it become necessary to use after market or dual springs in a D16z6 head. I'm trying to reach a goal of about 300-325 hp. Any input is appreciated.

Re: Springs?
 

mostly you would use them with a big lift cam where the factory coils would bind or if your looking to up the rev limit

Re: Springs?
 

Stock head is more than adequate at 325 whp.

Re: Springs?
 

Sounds good. I'm having it ported and polished by a local machinist. I am probably going to run a slightly more aggressive cam but I'm sure what to get yet.

Re: Springs?
 

CROWER

Re: Springs?
 

zex 59300 or a 59500 if you can get one

Re: Springs?
 

Crower? Jesus Christ Rich.

Re: Springs?
 

bump. Any Ideas for a cheaper cam alternative?

Re: Springs?
 

you could always go with exospeed.. $240 for one

Re: Springs?
 

AKMEE......which are Crower copies, same place Skunk2 gets theirs.