Engine advice needed

[spill86]

(09-04-2015 04:13 PM)chrisd1 Wrote:  You will need to match all of your bottom end for the crank, 20v will have 42mm crank, so match with pistons/rods to suit, the head will be fine! Consider upping compression a little? and do TRD headgasket too... will be a great build on ITB's and Omex!

I plan to use the complete 20valve block with the 16valve head, i suppose i will know what pistons i need when i have the 2 apart, i wonder is it worth my while getting the crank lightened and balanced and anything else within reason that needs doing for a good reliable engine while everything is apart i already have a standard toyota head gasket to use thats new, would it be worth my while getting a trd gasket if i will still be using a standard piston?