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Discussion Starter · #1 ·
I had my engine built at a local machine shop and I specifically asked them to port match the lower intake to the heads. Just by looking at these pics does it look like they've done the job? the intake looks like the ports have been machined but my guess is that that was done by Edelbrock at the factory...





<font size=-1>[ This Message was edited by: Stangboy69 on 3/6/06 5:21am ]</font>

<font size=-1>[ This Message was edited by: Stangboy69 on 3/6/06 5:25am ]</font>
 

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Discussion Starter · #2 ·
Ok as far as I can tell the intake was not machined from the factory but why would they have not touched the heads at all? anyway I got the heads off because I was sure I had a blown head gasket but once the heads came off I couldnt tell if anything was damaged at all. The heads are o-ringed and it doesnt look like the o-ring was damaged at all. I'm starting to get pretty bummed out about taking everything apart and not finding out what is wrong with the engine...
 

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Having a hard time following what the issue/concern is. You start out asking if the lower intake was port matched. The third pic down of your intake would appear as if the first 1-2" of the runners have been ported. So I would say they probably did what you asked. Why didn't they touch the heads? Because you asked them to port match the intake to the heads - that usually means they open up the intake to match the FelPro manifold gasket (yours looks like a #1250). The intake has definately been ported to the size of the gasket, which is good.


You second post goes into a problem with the engine... what is it that prompted you to pull the heads?
 

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Discussion Starter · #4 ·
Yes sorry it was a follow up to a previous post. I put a new tune into the Tweecer and I believe it caused a sudden lean condition that blew a head gasket. At least thats what I assumed right away when I observed oily water running out on the ground after a large cloud of white smoke billowed out the back of the car. Upon closer inspection I found a small EGR coolant hose that had burst, I assumed, from the high pressure when the head gasket blew. The water in the radiator looked kind of brown and frothy and when I drained the oil it was also slightly brownish in color with some streaks of white. All these things i figured were signs of a blown head gasket... but now that the heads are off they don't look blown at all. However while taking the heads off I observed that some of the head bolts werent as tight as others and according to a torque wrench they varied from about 20 ft lbs of torque to about 60 to loosen them. anyway if anyone knows anything about this or any ideas I'd really appreciate it.
 

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By looking at this pic it appears the intake wasn't sealing around the EGR crossover at the lower edge of the intake. Chances are if the intake was leaking then that is how the water got in the oil.

 

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Discussion Starter · #6 ·
interesting... yes well when I took off the intake the bolts were loose. some were almost hand tight with a socket. I talked to the shop and they said oh yeah sure thats normal and you should have retorqued them... well that would have been a good thing to tell me when i picked the engine up.
 

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Yep retorquing is pretty standard procedure, and I suppose they should have told you. Looks like you've got your culprit - in fact it looks like you could have been sucking coolant into one of the intake runners from the loose gasket, and coolant leaked into the oil in the same way.
 
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