The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Are these Vortec Heads cracked beyond useage/repair?

vince1 · 05-28-2017, 11:29 AM

I had an 89 4.3 leaking coolant into the rear left cylinder. I changed the head gasket and it still leaked. Block sealer. Next 90 4.3 same thing. Block sealer again and managed to get 200k miles out of that one. If you know its cracked get another one.

05-28-2017, 11:29 AM	#20
vince1 Registered User Join Date: Jan 2013 Location: Calgary Alberta Posts: 1,164	Re: Are these Vortec Heads cracked beyond useage/repair? I had an 89 4.3 leaking coolant into the rear left cylinder. I changed the head gasket and it still leaked. Block sealer. Next 90 4.3 same thing. Block sealer again and managed to get 200k miles out of that one. If you know its cracked get another one.