WyoZep

Has any one seen or experienced any thing like this

Stock motor hydro locked and threw a rod out the block, after many dollars and four months waiting for my new forged motor I finally get to drive again.

Within the first 200 miles of breaking in my new motor I get a large puff of white smoke - find out coolant is in the same cylinder-when we removed the Intake and pressured up on the coolant reservoir a pin hole leak is found in the intake port of the head.
How does this Happen?

WyoZep

The photos did not post like I wanted- you can see them better on my profile

peter pan

Wow that is bad luck with the head leaking and time for new heads

tlc0706

Those pictures made me sad..... Any port work done on the heads?

WyoZep

Yes, these were CNC ported 5.3L heads- with less than 4000 miles on them

VGLNTE1

they were ported to much...

2000BSME

obvious answer is obvious.

Munch

That sucks beyond words, my condolences. I too was a victim of over porting but I got lucky and only had to get new heads.

WyoZep

My question basically is this a chance you take when you buy commercially CNC ported heads, these heads have a pretty good reputation, or is it just luck of the draw. Do I need to worry about the other set if I just replace the damaged ones?

Vetteman Jack

Talk about your bad luck. Time to get rid of those heads and find some that don't have a hole in them.

itzza427

To be safe(after an experience like that),,I'd go with good after market head like RHS,AFR,Brodex etc.!! They are many to choose from,,and have a little more beef to play around with later if that's the way you want to go!! Better safe than sorry!! That was a really sad/scary looking set of pictures!!Good luck with the fix!!

madmatt9471

Grab a set of LS6 heads or some Patriots and you'll begood to go!

Thanks,Matt

FourG63 97GST

67Ranger

If you didnt want to totally abandon the heads, you could always send them to be repaired, you probably want to check with one of the local engine builders and see who does good work around you.