if they said u HAVE to then they are full of shit but id reccomend it if ur gonna beat the carOriginally Posted by b18hatch
cons about b20 vtec is with the lift of vtec cams and non vtec pistons (very little if any valve reliefs) increases ur chances of valve to piston contact bc of how far the valve is pushed into the head when ur in vtec.
as for the rods the rod bolts stretch. It is popular to put ARP rod bolts in but alot of na guys (mike jawns) reccomend swapping out rods completely if u want to rev past 8200 i think.
lastly, supposedly revving the hell out of the b20 block will cause the sleeves to crack bc the bore is 84mm and the sleeves are so thin.
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