New SI valves stock size

[ssms5411]

I bought these from ZZP and decided not to use them since they say not to use these valves with a turbo or valve springs over 115lBS. So your fine using Comp 105LB springs or lower.I paid about $160 shipped selling for $120 shipped OBO, send me a PM. I will have other parts selling soon after I complete all my projects.

[N2OEQIP]

Re: New SI valves stock size

decided not to use them since they say not to use these valves with a turbo or valve springs over 115lbs.

myth!

[Choppers]

Re: New SI valves stock size

What kind of other parts Steve. I may be interested in some if they fit in my budget.

[ssms5411]

Re: New SI valves stock size

myth!

I'm just giving the warning ZZP has on their website, since they don't say what series of valves they are from SI. Also a few have has problems with them so I don't want to sell someone valves and destroy their engine.

[N2OEQIP]

Re: New SI valves stock size

call up Si, nothing has been proven to be a defect in their valve. Or springs higher then 105lb.

[ssms5411]

Re: New SI valves stock size

I called SI up after I decided to go from nitrous to a turbo and talked to their Tech Dept. they recommend their racing valves or something like that( I found my notes I wrote down from last year, I write down everything since my memory is bad, so I can just look up what was said andd what to go with) over the competion series. Also contacted Zoomer at ZZP and he said if going with a turbo and 130LB springs to use the stock valves over the SI valves. The SI valves are fine for nitrous cammed car running 105lb springs but they put the warning on their for a reason. Thats why on their CNC heads they use stock valves since they have proven themselves in their supercharged apps. and turbo apps. but if running high amount of boost go with Manely Servere Duty II valves, becuase of the heat and living in a high heat state. Same with Basko racing here in AZ. But I'm not running high boost so Zoomer said stock valves will be fine. But I plan on getting the Manely valves from Basko Racing and having them do some valve work since my heads are already P/P and milled.

But who ever wants some lighter stock valves with a swirled finsh make me a offer on these valves , their collecting dust.LOL

[ssms5411]

Re: New SI valves stock size

TTT, Good valves for N/A or running nitrous , or turbo which some have suggested. Brand new , retail $160 shipped new. I will let go for $100 shipped. Lowest price before ebay. I will also have brand new stock valves for sale paid close to $80-$100 will let go for $60 plus shipping.

[Choppers]

Re: New SI valves stock size

Thats a good deal.