One question. How much work do y'all think must be done to a B16 head to support 400-500whp ona 1.9l block?

 

depends on what you wanna spend. Go budget, do nothing and just be prepared for something to happen. Half *** it and just be prepared for something to happen. Go all out and spend the buck......just be prepared for something to happen.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Project_SOHC_EX &raquo;</TD></TR><TR><TD CLASS="quote">One question. How much work do y'all think must be done to a B16 head to support 400-500whp ona 1.9l block?</TD></TR></TABLE>

Not much.
I'd do c1 cams, slightly beefier springs, maybe a mild p&p, oversized valves.

I'd also get a better I/M.

 

Don't bother with a P&P the head will flow enough for that power level.

 

Stock head can support that much power, however, you may gain 20-30 whp from a good ported head.

 

i plan for 500whp on my b16 head and the only thing i will have done is EF-1 springs and retainers and ITR intake manifold. Hopefully everything else will be fine.