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Head ported to thin!Can it be saved???

wedge5

wedge5

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Motor is running like crap. Found the issue, the heads were ported to thin. The #2 intake runner has a dime size hole in it. Right where the pushrod area was cleared for the rushrod. I contacted the guy and he said they can be fixed.

CAN THEY BE FIXED? WILL THEY BE SAFE? WILL THEY STILL FLOW THE SAME?

I really don't want to get into He should do this or I should do that. I would like to know if I should trust the heads after they are done or should I just get a new set?
 
Hard to say about the flow without seeing them but yeah, most heads can be fixed. Dime size hole in the intake....where did the dime size material go?
 
yes. i went through that area while doing a set of maggy r/t heads. tubed it and they ran very well. heads ended up in the engine shootout. s/b 318 build and they made decent power.

574 peak i think if i remember right...no issues from what i remember either.

steve
 
Not sure where all the pieces went but I found alot of shavings in the spring area of the head. I haven't taken the heads off the motor yet. When it is all said and done I am going to change the oil/filter before I run it again.
 
did porter racing heads do the porting of the heads?
are they aluminum or steel heads.
 
If you found shavings in the valve spring area, I'd be doing a lot more than just changing the oil and filter......
 
Cranky said:
If you found shavings in the valve spring area, I'd be doing a lot more than just changing the oil and filter......
Click to expand...

The heads are coming off,disassembled and cleaned also but what else are you thinking?

Yes they are aluminum
Porter Racing didn't do the porting.
 
wedge5 said:
The heads are coming off,disassembled and cleaned also but what else are you thinking?

Yes they are aluminum
Porter Racing didn't do the porting.
Click to expand...

Aluminum makes it easy to repair!
He was suggesting that you may have metal spread throughout the entire engine at this point. If it got down in the lower half of the engine from oil carrying it, then you could have it in some pretty bad areas "like bearings, cyl walls, etc".
I had the first cam in my new engine go bad and had metal contamination issues as well. After it was all said and done, I had gone through 5 gal of Kero rinsing everything out, including and the oil passages. If your done driving for the season, it's not a big deal... The steps I took are as follows: Drain the oil, take off the intake and valley cover, rinse down the upper half with Kerosene, fill back up with more fresh Kerosene,run the oil pump with drill "no oil filter installed this time", replace oil filter with new, run the oil pump with drill some more, drain Kerosene from engine, drop oil pan, rinse out lower half of cyl walls with squirt bottle of Kerosene, inspected bearings "all were good", Re-assembled everything, replaced oil filter and added new oil, ran engine for a few minutes, drained oil, replaced filter again and added new oil.
I know it's alot of work, but I know my engine was clean again!
 
67 B-body said:
Aluminum makes it easy to repair!
He was suggesting that you may have metal spread throughout the entire engine at this point. If it got down in the lower half of the engine from oil carrying it, then you could have it in some pretty bad areas "like bearings, cyl walls, etc".
I had the first cam in my new engine go bad and had metal contamination issues as well. After it was all said and done, I had gone through 5 gal of Kero rinsing everything out, including and the oil passages. If your done driving for the season, it's not a big deal... The steps I took are as follows: Drain the oil, take off the intake and valley cover, rinse down the upper half with Kerosene, fill back up with more fresh Kerosene,run the oil pump with drill "no oil filter installed this time", replace oil filter with new, run the oil pump with drill some more, drain Kerosene from engine, drop oil pan, rinse out lower half of cyl walls with squirt bottle of Kerosene, inspected bearings "all were good", Re-assembled everything, replaced oil filter and added new oil, ran engine for a few minutes, drained oil, replaced filter again and added new oil.
I know it's alot of work, but I know my engine was clean again!
Click to expand...
Yup....but one thing you can do is pull the oil pump and open it up and check it for particle damage and cut the filter open too. When you drain the oil, look at it with a bright light and see what's in it. You may be ok if that looks good but in my experiences with stuff like that, there were always metal throughout the engine.
 
Possible rebuild.. if any shavings at all got past the filter !!!!!!...I'd be pulling a main cap and a rod cap
 
The hole in the intake runner is probably the best place to have a hole. If any metal bits got loose they were likely sucked in to the cylinder - and you would have heard a rattle noise. Other than fixing the hole, and no major piston top damage, run it.
 
Holy crap, what's w/ the recent onslaught of bringing threads back from the dead?!?!?

If it matters at this point...zspar slash zone will fix little things like this up, or reshape parts of ports if one wants to get creative.
 
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