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Critter · 01-05-2011, 08:47 PM

I guess you could call them a Vortec Engine, but not an LSx. I'm no expert but I believe they are based off the old Big block engine same as a 7.4 liter 454, but the firing order is different. I'm assuming a lot of the wiring and computer adaptation would be similar to that of a 4.8/5.3/6.0 etc...but I'm just speculating. They make GOBS of torque and in my opinion are awesome for a swap. What were you thinking of putting it in?

01-05-2011, 08:47 PM	#5
Critter Future TOTM Winner Join Date: Aug 2006 Location: Bulverde, TX Posts: 2,692	Re: 8.1 I guess you could call them a Vortec Engine, but not an LSx. I'm no expert but I believe they are based off the old Big block engine same as a 7.4 liter 454, but the firing order is different. I'm assuming a lot of the wiring and computer adaptation would be similar to that of a 4.8/5.3/6.0 etc...but I'm just speculating. They make GOBS of torque and in my opinion are awesome for a swap. What were you thinking of putting it in? __________________ 72 Chevy CST K5 HIGHLANDER BLAZER Getting a 6.0,NV4500,NP205,14BFF (Currently laying all over the place in little pieces) 72 Chevy swb step-side "LS" 6.0 Here's a build thread of sorts 2002 HD2500 Crew Cab, 8.1L Allison 4x4 Daily Driver Check it out www.lsdyno.com