Well I am trying to iron out the last of my build up and I hate to bother anyone but I am looking for a bit of help.

What I've got is a 1st gen JDM B16A head, Toda D's, Toda springs, Ferrea valves, Ferrea keepers and Alaniz retainers. I am running into a issue with the Ferrea valves the keeper groove is much lower than the original B16A valves. The head has not been touched. I am assuming that the installed height of the stock B16A valve springs is 1.320" please correct me if I am wrong. The suggested installed height for the Toda springs is 1.325". With running the Toda D cams I am looking to have my installed height dead on @ 1.325" so that I have things setup properly.

My snag is, because the Ferrea valve's put the keeper groove much lower I am going to be a long way away from the 1.325" installed height and I know that when the valve seats are cut the valve is not going to move up a great amount still leaving me with the wrong installed height.

I am concidering what I think are my options. The first! do I have the spring seats cut down? Do I look to have a different spring seat locator? Do I have the valve margin cut down? Or! do I do a combination of two or more of these things so that I get the installed height I need.

I have never run Ferrea valve's nor have I ran cams as big as these and honestly I have concerns about which way is the best to go. I would really like to hear from anyone who maybe able to offer some insight. I am located up in Nova Scotia, Canada and there is absolutely no one in my shoes to ask such questions based on the nature of the components and build up. The bottom is done and I am dying to get this thing together and get it on the dyno. I would be very thankful for any help.

My apologies for such along post. Thanks folks

 

shims?

kinda like these http://www.compcams.com/Techni...6.asp

 

Um well I was thinking that. I may be able to get some thinner spring seat locator's. I have not had the valve seats cut yet and so I do not have a definitive number so to speak of what I need to make up in distance to achive the right installed height.

I have another head here and I put a couple of Intake valves in it, one being the Ferrea and the other the stock B16A, although I have no exact number I can certainly see that there is a major difference (atleast the width of the Alaniz retainers). I have concerns that I can not make up the difference in the spring seat locator alone, if I remove the locators and have the spring seat floor sunk and/or a thinner locator installed. I am also concerned that the retainer may bottom out on the valve seal. I just don't know how much room I have to play with here and therfore I don't know the best way to go forward. maybe it's just my luck but I have never seen anyone ask about this. I am thankful for your post.

 

Send me a intake valve and exhaust valve and I might be able to help you.