Engine Identification

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Oct 28, 2005 | 02:48 PM

89Blazze

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Joined: Oct 2005

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Engine Identification

Can anyone tell me how to determine what engine my blazer has 1989 s-10 4x4...is there a regular 4.3L and a 4.3L Vortec? If so how does one figure out what one has...Hope this makes sense...Thanks In advance

Oct 28, 2005 | 09:56 PM

chevylane2003

Joined: Jun 2005

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RE: Engine Identification

If it is the original motor then early vortec. Keep in mind that the vortec didn't get good till about 96. Up untill that they were just working there way up.

Oct 29, 2005 | 04:57 AM

drkmelvin

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RE: Engine Identification

I think it also says VORTEC on the intake

Oct 30, 2005 | 01:49 AM

chevylane2003

Joined: Jun 2005

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RE: Engine Identification

I know the vortecs use eight bolts to mount the intake to the head and I think the others use like ten or so.

Oct 30, 2005 | 12:09 PM

Talusgirl

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RE: Engine Identification

http://www.s10extremist.org/tech_articles/vortec.htm I asked a similiar question awhile ago and this is what 'Hanr3' wrote. He also said 'all 4.3L engines(after 89) in S-series truck have Vortec heads' (hopefully, I remember that pretty exactly). Check out that site for more info.