i did a search and came up w/ some stuff but not the info i was looking for. i was wondering if i could use itr outer and portflow inner valve springs w/ the bc4 cams. any help would be appreciatted. thanks.

 

they will hold up fine

 

I'd look into a different set of valve springs, I was originally running itr outers w/ portflow inners on my bc4s, but I swapped them out for eibach valve springs. According to my head porter, the bc4 lo-cam is pretty aggressive to be running on the itr-portflows, reason why I switched them.

 

up

 

rm gen 2 springs and retainers are another option. i'd upgrade to ti retainers for sure though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nisif &raquo;</TD></TR><TR><TD CLASS="quote">I'd look into a different set of valve springs, I was originally running itr outers w/ portflow inners on my bc4s, but I swapped them out for eibach valve springs. According to my head porter, the bc4 lo-cam is pretty aggressive to be running on the itr-portflows, reason why I switched them. </TD></TR></TABLE>

if it could hold the vtec cam, how would it not be able to hold the non vtec cam? can you explain?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Oldskool teggy &raquo;</TD></TR><TR><TD CLASS="quote">

if it could hold the vtec cam, how would it not be able to hold the non vtec cam? can you explain?</TD></TR></TABLE>

yes please explain

 

Who cares, the only people that can answer your question is Portflow. Ask them. Got used outer springs? Toss em.