Alright, on to the heads...
As I stated previously in other posts, the setup I was previously running has been changed greatly after an intake camshaft lobe from my Kelford 220-C was ground down and made its way through my bucket, broke off the valve stem, put a small crack in the head and sent metal everywhere which was amazing to see when disassembling the longblock
I guess the worst part of this failure is that we can not clearly determine the cause of the failure but oh well and time to rebuild!!!
Installed Ferrea "Drag Racing" dual valve springs, seat locators, titanium retainers, lockers
Installed Ferrea Competition Plus 1mm+ intake & exhaust valves
Installed new valve seats
Installed/clearanced Kelford 220-D camshafts(min. clearance .0060")
Stick-welded the crack inside of the heads
Roughen up intake ports to fix very slight fuel puddling for better atomization
Super-Flow flow bench tested= 340CFM
Valve spring seat pressure= 90lbs
Valve spring open pressure= 315lbs
Net valve lift:
Coming Together Nicely!!!
Tight Clearances FTW!
Awesome Intake Port Work
New Valve Seats!
Crack Repaired With Stick-Weld