Re: DIY Vortec Head Porting
alright, trying to stay busy and not do my HW tonight so i figured I'd put up my pics of my vortec porting.
the heads....
you can see the pervious owner did a valve job, and some work on the valve side of the runners
this is the mismatch from the 1203 on my heads, i did take a bit more off the top ports to blend but once i relined it up it was perfect fit.
after taking material away, not polished yet
other ports done....
smoothed the chambers, this was first time around, i dont have other pics once totally finished, I should have re- cc'ed them but didnt.
thats it, got them on and running, so i guess i did something right.
tips:
take your time
stop constantly and feel with your hand how its moving around the pushrod pinch, thats where your going to get the best gains from. After porting the intake and checking where it gets thin the pushrod pinch is no problem. I do beleive the porting around the valve where it enters the chamber is another important part to open up but since i didnt do that i cant give any pointers.
