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vince1 · 12-30-2019, 11:16 AM

I've had three 4.3's; 89, 90 and later Vortec in Astro vans. Both the 89 and 90 leaked coolant into the left rear cylinder, which symptoms were relieved using Bars leak. Cracked heads I think.

The 2WD 89 with throttle body injection could drive from Calgary to Vancouver on a tank of fuel. That distance is about 1000km or 600 miles. The AWD's not so good, especially the Vortec and that van was also longer. I just don't remember anymore the age of the Vortec.

I had a brother in law who got close to 500k kms (300k miles) out of one in a pick up.

12-30-2019, 11:16 AM	#17
vince1 Registered User Join Date: Jan 2013 Location: Calgary Alberta Posts: 1,164	Re: 292 I6 to 4.3 V6 engine swap I've had three 4.3's; 89, 90 and later Vortec in Astro vans. Both the 89 and 90 leaked coolant into the left rear cylinder, which symptoms were relieved using Bars leak. Cracked heads I think. The 2WD 89 with throttle body injection could drive from Calgary to Vancouver on a tank of fuel. That distance is about 1000km or 600 miles. The AWD's not so good, especially the Vortec and that van was also longer. I just don't remember anymore the age of the Vortec. I had a brother in law who got close to 500k kms (300k miles) out of one in a pick up.