Identifying stock late 85-87 cranks

[Quick6'n'-K.C.]

So im selling off some parts. Trying to identify crank shaft years......

I have a few cranks here and they are all rolled fillets on the RODS and MAINS. The 86 up seem to have a X or K at the top journal/ front journal I have a few that do not have that X or K at the top counter weight.

I have like 4 cranks that i know are 87s, but some of the others do not that marking and i really think they are the older HOT AIR turbo cranks from cars parted out

Are all the cranks the same from 78 to 87? Personally i always thought the hot air cranks were not the same, i just stuffed em all in the same corner and pulled out 5 .000 .000 cranks

I did look all around the counter weights and tried to find a part number, i cannot find a identifiable part number on the crank and was wondering where it was and what the correct part number was per year if at all.......

Also whats the going rate for a std crank, it used to be 600.00 Just want to clean out the garage with all my buick parts, i have 20 years of collecting and the odds and ends are the items i have most.

Really appreciate any help with identification and years etc.

 

[earlbrown]

I've never heard of a used crank going for $600.

My crank book is as a friends house right now but if memory serves you're looking for a 299 casting with rolled fillets on rods and mains.

 

[Quick6'n'-K.C.]

I've never heard of a used crank going for $600.

My crank book is as a friends house right now but if memory serves you're looking for a 299 casting with rolled fillets on rods and mains.

I'll search for that thank you very much

 

[m233roller]

I'll search for that thank you very much

Iv'e seen that most all of the cranks have 229 number cast on them but it really makes no difference as they are all the same, hot air, cold air and the early 4.1's. Same cranks.

 

[Tom Tom Turbo]

for what it's worth, I've seen several sell on Ebay for $250-$375 depending on how nice it is or if it has been cut. I'm about to have a pair of them for sale also.

 

[87GNSteve]

229 is the correct casting.

 

[earlbrown]

229 is the correct casting.

THAT'S IT! I wasn't drinking enough when I posted 299

 

[Quick6'n'-K.C.]

I see 229 is cast on the 2nd counterweight up from the back

Seems on my 87s it looks like 22@
The 9 looks horrible

On the hot air cranks, 229 is not stamped on the second weight, and all the ones I have are rolled fillet rods and mains

Even this 4 barrel 4.1 turbo crank does not have 229
Guess m233roller b correct

Thanks fellas. All this crank bs got me started assembling a 3.8 turbo this afternoon.
This GN was parked in 01, 1/2 it's life in the basement

 

[earlbrown]

Odd. My 4.1 crank is a 299 casting.

 

[Quick6'n'-K.C.]

Odd. My 4.1 crank is a 299 casting.

Where is it stamped?

I pulled this rolled fillet 4.1, does not have 229 second weight up from bottom
Where is the 299?

They all look the same, but 86-87 always seem to look better... psychological issue?

 

[Quick6'n'-K.C.]

I'll post pics soon