Quote Originally Posted by vortec king
thanks Ron B. for recongnizing the crankshaft confusion! people, i'm not using a 350 crankshaft! it's a 400 crank with turn down mains, meant for a 383 stroker. the spacers i mentioned are for the gap between cranks main(2.45) and the blocks main (2.65). i only said 377, only because they mostly use the spacers on the 377's.
anyway, back on topic. are my heads going to be sufficeint enough for my 406? will the bigger valves help any? i can buy a set of aluminum heads with 190cc intake port, that flow 255in/190ex, but i want to see if my heads are sufficient before i hand over big bucks for aluminum heads. i'm hoping to make 450hp and 490ft torque, and would love to see low 12's possibly high 11's.if my vortecs can't do this, then i need to know before i invest money in them. and by the way if you have something write thats not relate to this post, then don't write it,it's annoying when two people have huge arguments thats not directly related to the topic, especially on someone elses post, if you want to argue, start your own post
Well, the 190's would not hurt you any.
The exhaust to intake flow is better.
The 190's would also give you more flexibility if you ever wanted to go hyd. roller or mech. roller in the future.