I am going to use a stock block my ? is what is the biggest cams I can use without the piston hitting the valves?

 

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what kind of pistons
is the head milled
is the block decked
do you have a stock or aftermarket head gasket

you need to be more specific for someone to help you

 

"STOCK BLOCK" no aftermarket pistons block has not been touched, head is not milled & using factory honda head gasket

 

again need more info b20n or z they have two different pistons

 

In all honesty, no one can give you a definitive answer, the only way to be positive is to clay, That being said, I wouldnt do anything much more aggressive than a type r cam on a b20 without having the slugs notched a bit for bigger cams

 

im not sure but a b20 with a gsr head has a rating of 9.2 cr and i dont really think your going to have a problem unless the head has been milled to **** and your running some gigantic cams. BUT CLAY in any case of doubt.

 

u need to open up the valve reliefs on stock pistons. no matter what cam even stock cams the valves are gonna hit the pistons cuz the valve reliefs aren't big enough.

 

you will be safe with 98-00 CTR or 00 ITR cams. But you need to know that the Valve Relief's will need to be bigger.

 

itr cams work great

 

"u need to open up the valve reliefs on stock pistons. no matter what cam even stock cams the valves are gonna hit the pistons cuz the valve reliefs aren't big enough."

agreed. better safe than sorry.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by agk20teg &raquo;</TD></TR><TR><TD CLASS="quote">itr cams work great</TD></TR></TABLE>

 

bump for more opinions/user experience on ITR/CTR cams...Im running a b20z block with b16a head and want to upgrade to some ITR/CTR cams.

 

/\ Dude I just had that same set up as you. CTR or ITR cams are a great performance upgrade if you make the Valve Relief's bigger.

 

Has anybody ever weighed there pistons once they cut their valve reliefs? i would take extra precaution when doing this, because if you take to much off one piston you can throw your rotating assembly off balance.

 

Yes indeed, so for all those who aren't really sure... just get cheap pistons, SRP, etc. $300 new or look in the classified section, there's always good stuff for cheap. B20 rods will definitely hold, so all you need are pistons to be safe.