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robmac · 02-13-2017, 07:44 PM

GM Powertrain OEM Sales
I called GM in Tonawanda and was told it is a detuned 4.3 due to emissions,tried getting hold of mercury because the last I was aware of after they assembled the last ZR-1 V8 and that was early 90s

02-13-2017, 07:44 PM	#19
robmac Senior Member Join Date: Jan 2005 Location: Nashua,Meredith Posts: 951 Thanks: 213 Thanked 106 Times in 81 Posts	GM Powertrain OEM Sales I called GM in Tonawanda and was told it is a detuned 4.3 due to emissions,tried getting hold of mercury because the last I was aware of after they assembled the last ZR-1 V8 and that was early 90s