Secondchance - 380 build begins!

[alnukem]

No Cylinder Head porting?????

[secondchance]

Originally Posted by alnukem

No Cylinder Head porting?????

Of course, it will be ported.

[RICKYRJ1]

Originally Posted by Scrrem

Great Yun, long time coming!! Well looks like you and I are are set up for "Twin 380's"...LOL!! I should have my crank and rotating assembly parts back soon.
Rich

you suck! I have 380 envy!!! cant wait till you are both done to check them out

[alnukem]

Originally Posted by secondchance

Of course, it will be ported.

Thank goodness! We do have an image to keep up! Keep us in the loop.

[secondchance]

Originally Posted by alnukem

Thank goodness! We do have an image to keep up! Keep us in the loop.

For sure!

"you suck! I have 380 envy!!! cant wait till you are both done to check them out".

Rickey,

It's been a long winter. Never thought I would get to come this far. Without the WAZOO gang, never would have made it.

[RICKYRJ1]

I hear ya brother Yun, one couldn't ask for a better bunch of guys. I also hope one day to have my LT5 massaged and will reach out the WAZOO collective for assistance. We gotta get our good ole farmer brother Darrin to break off a piece of land for us and build a track for tune & testing.

[LGAFF]

Tope end pretty much done, just need to clean up the port match

Stock vs Ported



Plenum/IH

[LGAFF]

[secondchance]

Thanks, Lee! Can't wait to mate those IHs and the plenum, finished in Tiger Drylac anodized silver, back on the heads!

Disassembled motor was dropped off at the machine shop today. Of course, I was totally lost until Phil showed up and started talking to the shop owner. Lloyd, the owner of the machine shop, obviously was a total gearhead and I could tell how much he was enjoying talking to Phil. Also got a tour of the shop.
Phil and Lloyd did some forensics on how I ended up blowing exhaust into the cooling system. If I understood correct, it was a combination of mileage and a defect on the head gasket.
Mind you, both head gaskets were intact - no distortion.

Below is the 1-3-5-7 head. Problem was with the #5 cylinder.


Cylinder #5 - notice the notch?


Corresponding segment of the head gasket.


Interestingly we found a "v" shaped depression on the other head. It turns out head gasket had a small imperfection, which was quite visible, responsible for this depression.
Perhaps, there was some over-heating due to low coolant when the OEM radiator went that exacerbated this weakness.

Whatever caused the sequence of event, this LT5 served me and served me well for the last 13 years and 140,000 miles. Better yet, I get to have a hand assembled 4" by 3.75" 377!!! - I LOVE IT!!!
I have always loved cars and especially Vettes. Owned Vettes since 1979. However, had I not run into the Net Registry and WAZOO in particular, I wouldn't have known of what can be done and couldn't have even dreamt of 380 build.

Thank you Net Registry and WAZOO!

[SAM/CH ZR-1]

Originally Posted by secondchance

For me driveability and durability is most important. Also, trying to minimize cost. I might go with stage 1 intake cam (if I can find one at reasonable cost) but most likely keep stock exhaust cams.

In my 383 (4.030 bore x 3.75 stroke) I have stage 1 inlet and stock exhaust cams.
My engine has the following additional mods.

-37.5 mm inlet ports
-Headers
-2.75 Inch PowerEffects exhaust System
-catalytic converters
-SGC base chip (thank you Aaron)

With 800 miles on the clock and without a final adjusted chip I went on a dyno and it pulled about 560 HP at the crank. Here in Europe we measure always the power at the crank, unfortunately.
The car has stock gears and is as fast as a C6 Z06. The weight of my ZR-1 is 3'530 lbs

With a adjusted chip and better modified secondaries there is still space for some additional HP's

Sam