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Old 06-28-17, 11:40PM   #16
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Posts: 1,468

If it ran for 50 minutes with out a fan on a stand, no wonder why the head is cracked. Hope someone makes good, hang in there.
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Old 07-13-17, 12:43PM   #17
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Location: Salem, Oregon
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Sorry for the confusion.
The engine builder ran it for 50 minutes. I don't know if the fan was running or not. I didn't get a video of this run.

My mechanic (installer) ran it himself for 20 minutes before things when array. I came over to his shop so he could show me the problem. This is the video I took, which shows that the fan isn't running during this third running of the engine.

As far as I can surmise, either the head was cracked from the get go and didn't rear its ugly head till i got it. Or, the builder cracked it during his 50 minute run, or my installer cracked it during his 20 minute run.

But its been shipped back to the builder. Now I need a replacement.

For the car, we swapped the Firebird fenders, doors, hood and spoiler from the Trams AM "parts car" I bought. We also ended up swapping the whole steering column because the bearings on the Firebird's where worn out and it rocked up and down.

the Firebird is currently at the paint/body shop getting sand blasted, smoothed out and will get a fresh new paint.
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Last edited by Seven : 07-13-17 at 12:55PM.
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Old 07-17-17, 12:50PM   #18
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Location: Salem, Oregon
Posts: 18

New Cylinder head arrived, going to get the engine put back together now

Regarding the EGR cavities...
I was told that Pontiac only has one manifold available for this engine, the Torker 2, but it is not designed to cover the 4X head EGR holes. Which manifold is designed for the 4X heads? Anyone have a recommendation on which gaskets to use to put it back together?

When the engine was delivered at the shop, those EGR holes was the first thing that we noticed and asked, "Aren't those those holes supposed to be covered?" They engine builder responded that they were stock for Pontiac Engines, which I assumed was him saying "No", but it really didn't answer the question. If we use a plate to cover them, would this be welded or epoxied?

Last edited by Seven : 07-17-17 at 01:33PM.
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Old 03-30-18, 12:56PM   #19
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Location: Salem, Oregon
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Had a competition 4L60E transmission built, with stall converter, computer (w/display & tuner) connected with a Holley RM-9070 bellhousing

The heads are off the engine again and at the machine shop to fill in the EGR cavities.

Would anyone recommend a Procharger for this engine?
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