|
Post by oldsproject on Nov 6, 2010 19:35:35 GMT -5
Started carving away on my heads today (A's). Opened the exhaust port and feathered the runner back to the bowl, tear dropped the guides and cleaned up the bowl. Question, how polished is polished? It means a different things to different folks. Does it need to be baby ass smooth, like glass or simply rough spots/flashing gone and everything transitioned in?
|
|
|
Post by bubbasz1 on Nov 6, 2010 20:00:19 GMT -5
What exactly are your plans for the motor.
|
|
|
Post by oldsproject on Nov 6, 2010 20:23:08 GMT -5
What exactly are your plans for the motor. Bone stock including intake and exhaust, factory cam, rockers etc. Just playing with porting the heads as I've never done it. Was going to simply gasket match the exhaust side, clean up the runners and bowl. On the intake side, was only going to tear drop the guides and clean up the runners. Probably wasting my time but what else is there to do I'll post a couple pix
|
|
|
Post by oldsproject on Nov 6, 2010 20:35:23 GMT -5
|
|
|
Post by bubbasz1 on Nov 6, 2010 20:47:04 GMT -5
That looks good, not much you can do about the center exhaust port other than what you've done unless your going to fill the heats passages up. I don't think I would do more to the intake other to clean the flashing up here or there. That is basically all I did to my intakes once I got past the valve guide.
|
|
|
Post by oldsproject on Nov 7, 2010 10:50:57 GMT -5
Thanks Bubba, would you recommend tear dropping the intake valve guides? From what I've been reading on various sites seems like for a street/strip combo best to leave the intake side alone other then cleaning up excess flashing and maybe tear dropping the guides for better atomization of fuel at low end. Seems like CFM's would be improved by opening the intake ports slightly though, so they are at least the same as the intake manifold or slightly bigger as flow is directional but I'm no expert? Definitely seems like flow would be destroyed if the intake side is smaller or obstructing the flow from the intake manifold? All questions for anyone willing to comment. What I don't want to lose is the low end street drivability from gas puddling.
|
|
|
Post by Big Mike on Nov 7, 2010 10:56:29 GMT -5
You're a brave mo-fo for being so close to that heavy hunk of iron in bare feet!
|
|
|
Post by stan65cutlass on Nov 7, 2010 11:03:22 GMT -5
i was thinking the same thing when i saw that ugly dawg pokin out
|
|
|
Post by BR[] on Nov 7, 2010 14:17:19 GMT -5
|
|
|
Post by bubbasz1 on Nov 7, 2010 16:02:09 GMT -5
Thanks Bubba, would you recommend tear dropping the intake valve guides? From what I've been reading on various sites seems like for a street/strip combo best to leave the intake side alone other then cleaning up excess flashing and maybe tear dropping the guides for better atomization of fuel at low end. Seems like CFM's would be improved by opening the intake ports slightly though, so they are at least the same as the intake manifold or slightly bigger as flow is directional but I'm no expert? Definitely seems like flow would be destroyed if the intake side is smaller or obstructing the flow from the intake manifold? All questions for anyone willing to comment. What I don't want to lose is the low end street drivability from gas puddling. If the head ports were smaller than the intake then you might want to port match a little, but if I remember my ports on the tri-power were smaller than the head ports so I didn't do too much. Once you get by the teardrop stage just clean any casting flash up and call it a day. I wouldn't worry about having the head fall on the toes more than I would of finding an errant piece of steel that the broom or vacuum didn't find, I never walk barefoot in my garage no matter how good I cleaned it.
|
|
|
Post by oldsproject on Nov 7, 2010 19:12:54 GMT -5
HEY NOW, thems my wifes feet ;D
|
|
|
Post by BR[] on Nov 7, 2010 19:22:05 GMT -5
HEY NOW, thems my wifes feet ;D Sorry Dude.... what's HIS name............
|
|
|
Post by bubbasz1 on Nov 7, 2010 19:31:51 GMT -5
You left the barn door wide open for that one. You got what you deserve, IMHO.
|
|
|
Post by oldsproject on Nov 7, 2010 20:12:04 GMT -5
Yeah, figured , thanks for the help Bubba!!
|
|
|
Post by rickman on Nov 8, 2010 15:45:26 GMT -5
I've always matched the intake gasket to both the head and intake manifold about 2" in - you want a smooth transition! Leave the middle of the intake port alone, unless there's flash, and just knock it out, if so! The intake bowl is important - smooth about 2"in, and yes. teardrop the guide area, blending to the seat. You can port the exhaust all the way out, carbon won't stick! Back-cutting the valves, [shallower cut from the seat, after lapping] is good for some more HP, on any head! Might cost a little more, but worth it!!
|
|
|
Post by oldsproject on Nov 8, 2010 21:26:24 GMT -5
Thanks rickman, great advice.
|
|
|
Post by BR[] on Nov 8, 2010 22:13:55 GMT -5
|
|
|
Post by oldsproject on Nov 8, 2010 23:36:03 GMT -5
Don't make me get a photoshop program.....
|
|
|
Post by rickman on Nov 9, 2010 19:53:30 GMT -5
I just about fell of the couch, with that one!
|
|
|
Post by boba65442 on Nov 9, 2010 22:31:11 GMT -5
That is really funny
|
|