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Can i put engine from sts 2001 to 1999 car ??


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Dealer is correct it won't fit. 99 uses plug wires and 01 uses coil packs. Also, the cylinder heads and brackets are different on the 01' engine too. Where are you located ?

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Maybe a stupid question !!

Is it possible to mount the cylinderheads from the 99 to the 01 Engine ??

Not a good idea. The shape of the combustion chamber was modified slightly in 2000 and that change involved both the heads and the pistons.

Locate a 1998 or 1999 engine.

Jim

Drive your car.

Use your cell phone.

CHOOSE ONE !

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What's wrong with your motor? Your heads are good since you mention swapping them. Is it bottom end issues? Hole in block? Bad crank?

My guess is bad headgaskets/pulled head bolts.

Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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If that were the case why would the heads be questionable about swapping?

It takes alot to kill an northstar

It is possible there are some attachment points on the block that might not be there. The crank sensors are different as well and wouldn't work with the older vehicle systems. I suppose it could be done but it would be a lot of work to get it to operate properly. It's less work to use the correct engine.

If it is just headgaskets, the existing engine could be repaired but we don't know what the reason is for replacement of the engine.

Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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thats what I am saying. If it was the headgaskets it would be easier just to repair the engine than to replace it

GM FAN FOREVER

Nice, clean, luxury= fine automobile

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