Kirdid

So my machinist thought it practical to have rods and mains in the same undersize so he ground both to .040 and now my rare 330 crank is useless since i can’t find a single place that sells or ships .040 bearings. Do any of you all have any wisdom? Can i grab a stock 403 crank and drop it in?
I really want to keep the 330 crank but at this point it seems like it’s done for.

thanks for any input

BillK

King shows them in 40 for the "second design" engine. Whether they are available or not is another story. MB5514AM .040

Kirdid

i saw those as well, what does second design mean? No thrust bearing?

BillK

According to the Clevite book the first design had a full groove #1 main. It looks like it was only the first year.

I checked with King and they do not have them and no ETA Federal Mogul and ACL also show them in 40 but have not heard back yet to see if they actually have them.

Oldsmaniac

There are plenty of 330's around if thats the route you need to go...

67OAI

Oldsmaniac, Kirdid is in Norway, there may not be many 330s or for that matter any other Oldsmobile motors available there! I would imagine that shipping a crankshaft from the US would be quite expensive. Kirdid, place a new post in the "Parts Wanted" section of the "Classifieds" for these engine bearings and NO the 403 crankshaft would not be directly useable in a 330 block. The engine bearings are the same but Oldsmobile changed the flywheel flange bolt pattern in 1968 when they introduced the larger bore 350 engine. You would need the crankshaft, flywheel, and harmonic balancer from the 403 (or 350) and most probably would require rebalancing with your piston/rod assemblies.

Kirdid

no, there’s a world outside the US friend

Kirdid

ahhh, thank you for the reply! I will do as you have said, and i also sent an inquiry to Egge and asked if they would resize their .060 down to .040 for me and waiting for a reply there. The only olds engines on market here right now are two 403’s that have been beaten to hell it looks like.

cutlassefi

Your machinist owes you a new crank. You never grind or bore ANYTHING until you’re sure what’s available.

Kirdid

i totally agree, i just hope i can get this solved without having to go there

Oldsmaniac

Forgive me for not knowing you were from another world, your world would be difficult to source 330 engine parts for sure and even finding a good machinist. We have the same problem here when Chevys are the only thing they know. The disposable cars and engines of today are causing machine shops to close.

Kirdid

yes! That’s precicesly the problem! When i bought the car with the engine rebuilt the parts that were forgotten were the Oldsmobile intricacies you don’t see on the chevy which is probably why they conned it over to someone when they couldn’t get their monster running properly. And machine work here is so damn expensive and even then you could end up with a machinist that is so used to the standard race scene consisting of purely chevy big blocks that he just disregards your wishes. I wanted to work in an engine shop but so few are able to stay afloat as the classic cars turn to dust from the salt.

BillK

Either that or your machinist could cut the crank to .060 for you. My warehouse is still checking on ACL and Sealed Power. If they come up with anything I will let you know.

Kirdid

i appreciate that! I’ll cut the crank down to .060 if they can’t resize

cutlassefi

Are you wanting to cut the crank .060 or bore the block .040 or .060? I’m confused.

BillK

He would have to cut the crank to .060 because that is the bearings available from Egge if he can't find any .040's. King, ACL and Sealed Power all have .040's in the catalog but nobody seems to actually have them.

BillK

K,
Just thought I would let you know that I have had no luck finding anything in .040

Kirdid

thank you for getting back to me! I’ll have to go for the .060 Egge mains then

Kirdid

Nothing to be found, not clevite, sealed power, egge, king, etc. there are no bearings to be found. Which means that for the forseable future i’ll keep my 330 crank for an upgrade later on. I’m looking into a 403 crank that is cheap but then i would have to balance it with the flywheel of my 330 which i don’t know if even works with the added crank weight. Could have bought a crankshaft but the shipping will absolutely ruin me, would’ve cost me 200$ to ship main bearings.

BillK

So Egge didn't have the .060" bearings ? Also read reply #6 above. It sounds like your 330 flywheel might not work on the 403 crankshaft.

Kirdid

i ordered them and promptly received an email saying they can’t source anything above .020

my line of thought with the 403 would be to buy a harmonic balancer given that i could source a flywheel. I will keep digging

joe_padavano

It definitely won't. The crank flange bolt pattern is different between the 64-67 motors and the 68-90 motors.

BillK

Kir,
I found you a set of bearings if you are still interested ?

Kirdid

are you serious?! That’s amazing! I’ll leave my email and you can contact me there. Didrikskarpnesolsen00@gmail.com