Is the LSA crank a 4340 forging? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

scdrj · 06-05-2017, 07:55 PM

I kind of doubt it. It seems to strong to be a 104X, but it appears to be a 5140. However, I can not find anything on it other than forged steel.

4130? 4340?

Dega Man · 06-22-2017, 07:58 AM

This would be interesting to know. Does anyone know what forging it is?

scdrj · 06-30-2017, 03:37 AM

Sorry about not responding here. No one knew, or had any input, so I never replied when I found out it was a 1538MV. The crank is likely good to 1200hp. Some say 1500hp. BTW, 1538MV is a very resilient Microalloyed steel. Its composition is 0.38 Carbon/1.34 Manganese/0.56 Silicon/0.086 Vanadium/0.0159 Nitrogen.

06-05-2017, 07:55 PM	#1
scdrj Drives: 2014 ZL-1 Join Date: Feb 2014 Location: In front of a computer. Posts: 211	Is the LSA crank a 4340 forging? I kind of doubt it. It seems to strong to be a 104X, but it appears to be a 5140. However, I can not find anything on it other than forged steel. 4130? 4340?

06-22-2017, 07:58 AM	#2
Dega Man Drives: ZL1 Join Date: Oct 2012 Location: Talladega Posts: 631	This would be interesting to know. Does anyone know what forging it is?

06-30-2017, 03:37 AM	#3
scdrj Drives: 2014 ZL-1 Join Date: Feb 2014 Location: In front of a computer. Posts: 211	Sorry about not responding here. No one knew, or had any input, so I never replied when I found out it was a 1538MV. The crank is likely good to 1200hp. Some say 1500hp. BTW, 1538MV is a very resilient Microalloyed steel. Its composition is 0.38 Carbon/1.34 Manganese/0.56 Silicon/0.086 Vanadium/0.0159 Nitrogen.