Leon Sabourin
New member
I have a 1988 OMC 5.7 V8. I'm wondering if that motor is made out of cast iron or cast steal? Any help?
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Ayuh,..... Cast iron,..... Why do you ask,..??
Ayuh,...... Weldin' don't work,.....
Epoxy can, if only cracked to the outside,......
You can try JB Weld. Widen the crack a bit with an angle grinder, clean it out & fill with JB. Let it sit overnight. Might work, might not. If not, time for a long block as that one is scrap. How's the manifolds, they cracked also? If so, he's screwed if it's a King Cobra.Iv brazed patches on cast iron before. Im going to give it a shot. What epoxy would you recommend?