2005 997.1 3.8L S -> 4.0 rebuild

[Jerome09971]

I am rebuilding a 997.1 3.8L S motor (D-chunk crack cyl 5) into a 4.0. Likely failure was a gel slug behind the water pump (wrong coolant added?)....Oil was chocolate milk mixture. (bought it this way as a project with 100K miles on it); could be gel slug was from coolant added after Dchunk failure and low coolant showed....I will never know.

Cases are coming back next week from LN Eng with nickies and JE pistons. IMS solution also being installed in the rebuild.

This will be built for street...no plan to ever race...so following decisions were made (I am open to hearing advisement if you disagree on any decision or have opinions)
1) stock rods will be reused (new bearings)
2) Using NEW OEM bolts everywhere (connecting rods, head bolts,crankcase carrier bolts etc.....I was advised if not racing..then ARP would not be needed...only really needed for the high RPM abuse of racing)
3) replacing water pump
4) Undecided on LN eng billet timing chain guide ($330) vs stock ($40) since not racing...might do it anyway for "insurance"...since it is deep in the motor)
5) all new chains and guides
6) heads were inspected at a shop..they stated guides were good...just changing the seals and resurfaced them
7) all new oil separators
8) reusing oil/coolant heat exchanger (they seem to be a suspect part from what I read even when bought new they are no always good...so if it aint broke on that one I dont want to take a chance on replacement)
9) Bought wrist pin insertion tool..plan to grind wrist pin hook away (I read this is the flat six approach) on cyl 4-6
10) will weight and match all opposing pistons+rods+rings+bolts+pins+clips for best balancing
11) Undecided but probably will send crank and all parts to shop for professional matching(to confirm my work) and crank balancing/magnaflux (This is not where this motor had a problem..so I suspect magnaflux is not needed...but insurance again comes to mind))

...lots of other smaller decisions made...but above are the bigger ones or not fully decided ones to give folks a flavor of the project

REAL question for why I am writing...I cant for the life of me find specs for 3.8L crankshaft! Info is not in the WSM. Trying to confirm Journals are in spec for standard main bearings or not so I can make my big parts buy for the rebuild.

Below are my measurements:
Crank Main Journals: Average =62.992 +.0432 / -.0292 (Max=63.03518; Min= 62.96279)
Crank Rod Journals: Average = 52.98794 +0.018 / -0.0131 (Max=53.00599; Min=52.974875 if too many sig-figs please disregard. I measured in inches the converted in excel to metric..not sure why I didnt just do metric....I am just not used to metric.

Full Disclosure: I am mech eng...but this is my first engine rebuild..I will take a few deserved lumps on this not so smart choice to make a $20K porsche high performance motor my first build....I deserve that:-); restored various previous cars and done engine swaps...just never did an engine...but I am having loads of fun!

For everyones interest Pic of Gel slug and D-chunk crack are included here Since I havent seen many when I was looking. (I do videos talking to myself for future reference...not pictures...so sorry for quality)