CAM same for Using GM 4.3 to replace MERC 4.3L

[CAPTahab7]

I have a 2003 Stingray with a MERC 4.3 Carb 190A (SER M616646 with a blown motor (scratches on 2 cylinder walls). I'm looking to save some $$ (maybe $800) and buy a refurb truck block from AutoZone that works in an S-10 Blazer. Seems to me if I take the marine parts (intake/exhaust manifolds, covers, water pump, starter, access) it should work out fine. My only question is the cam and bolt hole patterns.
Does a stock GM 4.3L/262 CAM run the same as a boat enigine?

 

[Pete104]

Re: CAM same for Using GM 4.3 to replace MERC 4.3L

No! Have you ever skied behind an S-10? Blown to what degree? If you can salvage the cam & LIFTERS, I would. Make sure the push rods are the same length also.

 

[CAPTahab7]

Re: CAM same for Using GM 4.3 to replace MERC 4.3L

Thanks. I ended up keeping the same engine I got. When I was doing engine searches though, it sounds to me that the boat and car engines are produced on the same line at GM. Makes me think if I had to replace, I probably could start with same block.

 

[Alpheus]

Re: CAM same for Using GM 4.3 to replace MERC 4.3L

The cams are the same. You just have to make sure that the core plugs are brass. Check out Rapidos. You can get a marine reman engine shipped to your door cheaper than auto zone...