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#41
09-20-2024, 02:53 AM
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Sux Brian. What kind of head gaskets did you use ?
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#42
09-20-2024, 08:24 AM
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Well that's a bummer!
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#43
09-20-2024, 11:01 AM
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Leak is where we drilled an oil return. Why on earth water is there is beyond me.
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#44
09-20-2024, 11:17 AM
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Quote:
That is kinda weird. I have the same holes on a set of E heads Dave did for us and there ok. Hmmm. There would almost have to be a crack in the casting in that area. Sorry to see this happen to you. Did you actually get any dyno pulls?
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68 Firebird. IA2 block, 505 cu in, SD Performance E-head, Solid roller 3600 weight. Reid TH400 4:11 gear. 29" slick. Best so far 9.95@134 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. |
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#45
09-20-2024, 03:56 PM
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Maybe pushed it a little to far placing the hole low enough to get every drop of oil out. Threads go all the way to spring pad.
What is the fix ? Welding that hole up and placing the return further forward between the springs ? |
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#46
09-20-2024, 04:01 PM
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Just tapped the hole deeper and ran the fitting in further to cover the hole.
Sadly we only got about 1min of idling in before we found the issue (which good, saved the bearings). |
| The Following User Says Thank You to slowbird For This Useful Post: | ||
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#47
09-20-2024, 04:59 PM
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run couple of the AC Delco radiator pellets thru the engine.We do it on EVERY engine will build on the startups.Tom
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#48
09-20-2024, 05:16 PM
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Sounds like a good repair. Does seem awfully close to hit water though. Figure Chevy head bolts go into water and the sealant works on them. If you take a 409 head for screw in rocker studs you had better use it too.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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