will this engine fit
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will this engine fit
i bought a used engine that was in a 2005 grand prix, is this block the same as the series II ? i kno i would have to swap intake and water pump brackets ect, but is the block and heads the same? thanks the motor only has 35000 on it would like to transplant it into my 95 someday..thanks
#5
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Expert Gearhead
Don't double check.
Change:
Rear exhaust manifold
Alternator tensioner bracket (and coolant elbows while you are there)
Oil pan you could probably use, once you swap the oil filter adapter. I like the alumimun pans personally. If you swap the pan, make sure you swap the oil pick up tube.
Coil pack bracket
You can remove the dogbone bracket from the drivers end of the front head. Yes the coolant sensor must be removed to remove the bracket.
Upper intake manifold and throttle body
Typically we'd suggest changing the flex plate, because Bonnevilles had a 258mm torque converter and W body cars (05 GP) had a 245mm flex. However on this S3 motor you should notice that the flex is double drilled for either size converter. Check that and there should be no need to replace it.
Change:
Rear exhaust manifold
Alternator tensioner bracket (and coolant elbows while you are there)
Oil pan you could probably use, once you swap the oil filter adapter. I like the alumimun pans personally. If you swap the pan, make sure you swap the oil pick up tube.
Coil pack bracket
You can remove the dogbone bracket from the drivers end of the front head. Yes the coolant sensor must be removed to remove the bracket.
Upper intake manifold and throttle body
Typically we'd suggest changing the flex plate, because Bonnevilles had a 258mm torque converter and W body cars (05 GP) had a 245mm flex. However on this S3 motor you should notice that the flex is double drilled for either size converter. Check that and there should be no need to replace it.
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Don't double check.
Change:
Rear exhaust manifold
Alternator tensioner bracket (and coolant elbows while you are there)
Oil pan you could probably use, once you swap the oil filter adapter. I like the alumimun pans personally. If you swap the pan, make sure you swap the oil pick up tube.
Coil pack bracket
You can remove the dogbone bracket from the drivers end of the front head. Yes the coolant sensor must be removed to remove the bracket.
Upper intake manifold and throttle body
Typically we'd suggest changing the flex plate, because Bonnevilles had a 258mm torque converter and W body cars (05 GP) had a 245mm flex. However on this S3 motor you should notice that the flex is double drilled for either size converter. Check that and there should be no need to replace it.
Change:
Rear exhaust manifold
Alternator tensioner bracket (and coolant elbows while you are there)
Oil pan you could probably use, once you swap the oil filter adapter. I like the alumimun pans personally. If you swap the pan, make sure you swap the oil pick up tube.
Coil pack bracket
You can remove the dogbone bracket from the drivers end of the front head. Yes the coolant sensor must be removed to remove the bracket.
Upper intake manifold and throttle body
Typically we'd suggest changing the flex plate, because Bonnevilles had a 258mm torque converter and W body cars (05 GP) had a 245mm flex. However on this S3 motor you should notice that the flex is double drilled for either size converter. Check that and there should be no need to replace it.
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God I wish I could edit messages. This is quite annoying.
Another thing I thought of, is the statement I made above pertains to 2nd gen w-bodies. I can't verify the torque converter size on 3rd gen w-bodies. Is it different?
Another thing I thought of, is the statement I made above pertains to 2nd gen w-bodies. I can't verify the torque converter size on 3rd gen w-bodies. Is it different?
#9
DINOSAURUS BOOSTUS
Expert Gearhead
If you think about it as S2 and S3 it'* much simpler. Yes, W bodies had both 245 and 258, which is the point I'm making. H bodies had 258 most of the time, there could have been some exceptions. However since his new engine will have a flex that is double drilled from the factory... it'* a non-issue as long as he ensures it has that double drilled flex. Which was the point I aimed to make.
The other thing here is we don't even know if he'* 36 or 67 to start with IIRC.... he hasn't said?
The other thing here is we don't even know if he'* 36 or 67 to start with IIRC.... he hasn't said?
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If you think about it as S2 and S3 it'* much simpler. Yes, W bodies had both 245 and 258, which is the point I'm making. H bodies had 258 most of the time, there could have been some exceptions. However since his new engine will have a flex that is double drilled from the factory... it'* a non-issue as long as he ensures it has that double drilled flex. Which was the point I aimed to make.
The other thing here is we don't even know if he'* 36 or 67 to start with IIRC.... he hasn't said?
The other thing here is we don't even know if he'* 36 or 67 to start with IIRC.... he hasn't said?
Can one use an S3 flexplate on an S2 L67? Just out of curiosity.
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