73 LS-4

I was reading throughsome old 73 articles and I believe the one from Super Chevy said that the manual 73 LS-4's had a forged crank with 2 bolt main caps and the auto's had a nodular iron crank. Does anybody know for sure if this is true or not? If it is, that's one less part I've got to worry about :D as far as the power levels I'm going for.

:cheers:
Pat Kunz

trw

I think all LS4's had the same crank-nod iron.

Terry

Tom73

Pat,
The manual trans LS4 used a forged steel crankshaft while the automatic trans LS4 use a nodular iron crankshaft. Both were 2-bolt mains.

This data is available on The '73 Spot. While you are there, I could use your vote on the Vette top 100, am about to fall out of the top 25. Or you could just click here to vote.

tom...


[Modified by Tom73, 11:52 PM 2/5/2002]

73 LS-4

I voted twice for ya Tom, I originally caught that info on your site then saw it on another so I thought I'd check into it. You wouldn't happen to have any of the casting numbers would ya?

Thanks
:cheers:
Pat Kunz

Tom73

Not really. Checked my parts interchange manual and it only lists one number, 3967414, but do not know which one that is for.

tom...

73 LS-4

Tom, I couldn't find a listing for the 3967414. I did find a listing for a 336782, 70-74 454 auto.

:cheers:
Pat Kunz