ls/vtec help

I have a b16 vtec in my teg but am thinking of upgrading to a ls/vtec i dont know wheather to build the b16 up or do the b18a with the b16 head, i would like to keep the redline the same if not greater with the ls vtec but dont know the advantages or disadvantages of the ls/vtec any replies would be helpfull just put whitch you would do and why and if someone can please explaine the redline factor on the ls/vtec is and what the max would be thanks

if your using stock pistons on the b18a then i would not rev past 6,500-7,000…If it’s fully built then i would say 8k to 8.5k should be fine…But if your going to do it please do it the right way…It’s sad to see this motor setup get a bad name cause people do not do it correctly from the start and then complain when it doesn’t last on them…Make sure that you get everything balanced and new bearings…

leeo