i was just wondering what would be best to do first all of the bottom end or the top end head work??

 

This is a VERY VAGUE question. What are you building the engine for? NA or boost? What type of numpers are you hoping to make? You need to be way more specific. But I will say this, do which ever you can afford. If you can afford to do both, do both.

 

^^what he said and look at it this way.

bottom end - can be built with higher compression pistons (as long as no froced induction is planned on soon) and have more power or just same compression pistons but be able to take more power whenever.

top end - helpful when adding more power but alone doesnt add it much unless you go with a port and polish but still not much.

so again what are your plans for this engine??

 

yea, what are your plans, if ur undecided u can always get the head done, like port polish, vlave job ect. cuz that works in both worlds. figure out what ur building it for first tho

 

I'd say build the top end first if you are going NA, put in a better cam(s), valvetrain, and tune it for high end or whatever you want. If you're going turbo, I'd build the bottom before top just to be safe.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civictildeath &raquo;</TD></TR><TR><TD CLASS="quote">top end - helpful when adding more power but alone doesnt add it much unless you go with a port and polish but still not much.</TD></TR></TABLE>

^^^ Not true, you can gain a lot of power with just top end work with a b or h series.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WildPig &raquo;</TD></TR><TR><TD CLASS="quote">
^^^ Not true, you can gain a lot of power with just top end work with a b or h series.</TD></TR></TABLE>

your wrong, comparativly the bottom end will give you more power by increasing the compression ratio. gettin more agressive cams will work but wont be as effective.

and to answer the poster, if you want to go NA i would build the bottom then the top, for turbo, your really only need the bottom done, for new pistons and rods, etc. The top is always good for high HP applications(helps the engine breathe better)

 

I'm not wrong, I wasn't saying that building the top end will yield more power than building the bottom end, I was saying that you can get some pretty good power out of an engine by just building the top end and getting some bolt ons for fuel and flow.

I wasn't comparing the two, so calm down.