johnnyb1902

thinking of ordering some kb .200 domes for a 350 with vortecs but i was wondering if i will have clearance around the spark plug on vortec heads

Irockz

iTrader: (1)

Yes you will.That "nub" can be ground out,but if you want domed pistons with a 64cc head,you most likely want a larger head anyways.

vetteoz

iTrader: (13)

Why?
What CR are you looking for
Pop up pistons are the old skool way of building compression when there were no small chamber heads around.

Current thinking has you get much better combustion ( more power ) with a flat top or even a dished piston
I would cut the heads or zero deck the block before running domes

johnnyb1902

im looking for at least 12.0 to 1

johnnyb1902

i would have to zero deck the block and witha .040 gasket i would have to cut the heads down to around a 56 cc chamber to get the compression i want...i would rather just change a piston and be done with it

johnnyb1902

yes i will have clearance or yes i will have to grind them nubs down? haha

Irockz

iTrader: (1)

Yes,AFTER the "nubs" are ground out,they will clear.
Would a ported and milled set of 305 vortecs with a flattop give you the results your wanting?
I just can't help but feel like if your looking at running 12:1 compression,a vortec head just will not deliver the airflow you need.Just my

johnnyb1902

im going to build my bottom end for so when i get the money i can go to a better set of heads....the vortecs are just whats on my car right now, but later on ill go to a set of dart platinum 200cc runner or somthing of that sort...i just dont want to leave my car sitting untill i can afford a new set of heads...ill just run the vortecs untill then