Hey head porters, is this a good job?

[robk46]

My dad sent me some heads he ported several years ago. They're 6293 heads he ported using the Buick Performance book as a guide. He's a master machinist (actually a tool and die man). I want to use these, but I'm not sure if the porting job would be good for a street driven, stock turbo car. He built these to go on a pretty radical N/A 3.8 he was building for an AC Cobra kit. . . What do ya think?

 

[thessman]

looks like he port matched them to a 1200 fel pro intake gasket. He removed the guide bosses from the intake and exhaust sides. good for flow but in my opinion valve guide longevity will suffer a little. Most of us dont drive our cars 20,000 miles a year anymore anyway. I bet they flow and will work good. make sure you have a good valve job and GOOD springs and set the installed height on them. maybe match the intake to them too.
for a real mild flat tappet hydraulic cam I use the comp cams 980 springs.
see ya ! Steve
Turbo Buick Heads for GNX, Grand Nationals, T-Types, and more...

 

[charlief1]

If that's for a "radical" engine I don't see it. There's a WHOLE lotta metal that can be removed before you get radical. Last set I did you could put the exhaust valve down the intake tract and I'm not joking. I'm about to do another set the same way so for a standard build yours should be fine.

 

[robk46]

Would I see much in performance gains going from untouched stockers to these? The car will probably see 5k miles a year, maybe more, will the cut guide bosses be something to worry about?

 

[87GN_70GS]

Looks like they need more work to smooth the the sharp edges just under the valve seat (in the throat area).

 

[it's just a six]

Hard to see the short turn radius's. Things a person would need to feel in person if they are good or not or needs more work.

They do need more work to be finished.

You can make a cylinder head flow worse by porting them incorrectly.

I would suggest to take them to a professional head porting shop or someone who knows about these heads in person to tell you first hand on what needs to be done. Two cents thrown.