i currently am running ls/vtec with all oem parts and am looking to buy forged pistons, i already have some eagle h-beams, but i was wondering what pistons to get and what block to order them for. I am using a b18a block, type r oil pump, water pump, tensioner, eagle h-beams, b16 head .5mm OS high comp valves, and crower stage 3 cams, with direct port nitrous of 100. Can someone shoot me in the right direction?/

 

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Arias, Wiseco, take your pick, I used Arias for my B20VTEC, haven't had any problems yet, tell them your setup, if you want to stay stock bore, than you would order them for LS. Just curious what is the advantage to having oversized valves? I know the problems that come with them, but just wondered about the advantges.

 

i dont really know the advantages of them, but i know that it breathes alot better. what kinda problems come with them? any idea on what kinda compression i should be looking to get since i will be running nitrous, but i dont want to build the motor around the bottle