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73-87 Chevy _ GMC Trucks => Performance => Topic started by: Tazman on March 21, 2015, 11:54:16 pm

Title: Heads only
Post by: Tazman on March 21, 2015, 11:54:16 pm

I have been throwing around the idea about replacing my engine in the near future since it just turned 204k miles. I have been told that you can give new life to a motor by just replacing the heads. Does this sound like a good idea?

Thanks,
Joe

Title: Re: Heads only
Post by: Irish_Alley on March 22, 2015, 12:15:05 am

this is true but at 204k i would think about a rebuild just to freshen up rings and bearings

Title: Re: Heads only
Post by: enaberif on March 22, 2015, 09:44:29 am

Quote from: Irish_Alley on March 22, 2015, 12:15:05 am

this is true but at 204k i would think about a rebuild just to freshen up rings and bearings

This would really depend on the shape of the motor. If you got good compression I wouldn't worry about doing a rebuild. SBCs are quite easily one of the most bulletproof engines and the bottom ends last forever even if mistreated.

I would say crank bearings would be something more to look into.

Title: Re: Heads only
Post by: VileZambonie on March 22, 2015, 10:16:34 am

Are we talking 5.7L original engine? With 200K I would give it a complete overhaul.

Title: Re: Heads only
Post by: LTZ C20 on March 22, 2015, 10:20:42 am

If it's the original engine to the truck and you want to keep it that way then overhaul it.

You can have a shop do it or do it yourself. Then you can add performance parts if your interested in that. If you don't care what engine it has then get a crate engine of which ever variety you choose.