350ci LS9 info? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

koolky · 04-15-2008, 02:11 AM

Ive got a 1971 GMC Sierra Grande 1500 with the LS9 option 350ci and i know only a little about it. I,m pretty sure its 4 bolt mains but other than that i dont know much. What were the ratings for it in 71? could it be a high nickel bolck? any other info would be awsome, Thanks

**uncle** · 04-15-2008, 02:24 AM

No guarantee on the high nickel block,but should be rated at 255 hp. More than likely a 4 bolt also,but again no guarantee.

koolky · 04-15-2008, 10:22 PM

Thanks

04-15-2008, 02:11 AM	#1
koolky 67-72 Addicted Join Date: Oct 2007 Location: Guelph Ontario Posts: 256	350ci LS9 info? Ive got a 1971 GMC Sierra Grande 1500 with the LS9 option 350ci and i know only a little about it. I,m pretty sure its 4 bolt mains but other than that i dont know much. What were the ratings for it in 71? could it be a high nickel bolck? any other info would be awsome, Thanks

04-15-2008, 02:24 AM	#2
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,288	Re: 350ci LS9 info? No guarantee on the high nickel block,but should be rated at 255 hp. More than likely a 4 bolt also,but again no guarantee.

04-15-2008, 10:22 PM	#3
koolky 67-72 Addicted Join Date: Oct 2007 Location: Guelph Ontario Posts: 256	Re: 350ci LS9 info? Thanks



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