Sapphire 454

[Matt B]

3 year old sapphire 454. Has 1360 hours oil changes every 100 with full synthetic oil. Lost one cylinder yesterday. Valves stuck. Any suggestions , should I replace heads or do a complete engine swap. Seems like I read on here once of someone getting sapphire to sell them a new 460 consol only with the kohler 38hp. Any help is really appreciated

 

[Mikey P]

Help is on the way

 

[Johnny]

Does your engine have hydrolic lifters? If so, you must use the exact specified oil weight. And no additive.

Super easy to replace heads, if necessary.

 

[dealtimeman]

3 year old sapphire 454. Has 1360 hours oil changes every 100 with full synthetic oil. Lost one cylinder yesterday. Valves stuck. Any suggestions , should I replace heads or do a complete engine swap. Seems like I read on here once of someone getting sapphire to sell them a new 460 consol only with the kohler 38hp. Any help is really appreciated

No on the new engine.

Call Scott at sapphire he has "modified" or "better" than stock heads that have been worked up by a small engine specialty shop, that are a big upgrade to new off the shelf heads.

New head gaskets, new heads, new spark plugs and you should be good to go.

On these Briggs it states many many times in the manual( someone told me this have not seen or read the manual) that you have adjust the valves every couple of hundred hours or this will happen.

Adjusting valves only takes 15 minutes or so once you have done it a couple of times.

New heads can supposedly go longer between valve adjustments.

I have the same motor but just in a ss2500hs

 

[hogjowl]

I hate souped up lawnmower engines.

 

[Mikey P]

I hate souped up lawnmower engines.

Your day is coming there Mr GMC Powerplant...

 

[hogjowl]

I had 26 years of Briggs and Kohlers, Mr. Buttwad

 

[Mikey P]

I figured a crate motor would cost more, no wonder Hagopian swaps them out one time before dumping that at 5000 hours..

http://www.jegs.com/p/Chevrolet-Performance/GM-Goodwrench-60L-Engine/2814745/10002/-1

 

[Matt B]

Thanks a million. Rick at sapphire just called got a set on the improved heads on the way.

 

[Mikey P]

You're welcome!

 

[GreenTechAgain]

My buddy in the landscaping business just got a 6.0 chevy crate engine. I almost fell over when he told me it was 4 grand.

I figured a crate motor would cost more, no wonder Hagopian swaps them out one time before dumping that at 5000 hours..

http://www.jegs.com/p/Chevrolet-Performance/GM-Goodwrench-60L-Engine/2814745/10002/-1

 

[Bob Pruitt]

I think a new Kubota engine is over 3 thousand.

 

[GreenTechAgain]

I think a new Kubota engine is over 3 thousand.

Yeah, I'm constantly amazed at what things cost. Especially in the grocery store.

 

[steve_64]

Yeah, I'm constantly amazed at what things cost. Especially in the grocery store.

I'm buying swordfish shark and tuna wayyy cheaper than cheap steak..

And the price swing on things. It's a very volotile economy.i hope it doesn't blow up.

 

[Cleanworks]

Yeah, I'm constantly amazed at what things cost. Especially in the grocery store.

You buy engines in a grocery store?