Does anyone know if the 1990 infiniti Q45 short block is compatible with a 1994 Q45? I have the opportunity to pick one up cheap........ and am hoping it is compatible.
NICO ROCKS!
Q45 Short Block compatibility
The answer is Yes and no.
The engines are both VH45DE's and physically it fits perfect.
But the CAS, cooling system, ECU, TCU, and a number of otehr sensors and periopherals are different.
I am sure it can be done (we have a member who put a 94 engine into a 92 I believe) but it ionvolves a bit of a hssle to say the least and you will have to purchse some additonal parts (none of which cheap).
One thing I might add, its a bit unusual to ask to put a 90 engine into a 94 car most often the question is the other way around.There is a shortage of 90-93 engiens due to them self destructing if the cam guides havent been done yet (even tho otherwise they are among the very best engines in the world)
As a result 94-95 engines are actually cheaper to buy.
So most questions we get on this are "can I fit the 94/95 engine into a 90-93 Q?".
Unless you are getting your cheap 90 engine from an actual friend or club member here, I would be very suspicious of its quality.
Very very few 90-93 engines on the market that are less than 2-2.5k are any good.I have once paid over 3.5k for a sludgy engine w/o the guides done!
If you go thru the work+expense of putting a 90 engine into a 94 be sure it has the guides done and is a good clean engine with good compression.And you should be getting it virtually free for the economics to make sense compared to just buying a 94 engine.Cuz a 94 engine doesnt need new guides, is cheaper to buy used, you will have a greater slection to choose a good one from and the labor would be much less and require less expensive aditional parts.
Fred...
The engines are both VH45DE's and physically it fits perfect.
But the CAS, cooling system, ECU, TCU, and a number of otehr sensors and periopherals are different.
I am sure it can be done (we have a member who put a 94 engine into a 92 I believe) but it ionvolves a bit of a hssle to say the least and you will have to purchse some additonal parts (none of which cheap).
One thing I might add, its a bit unusual to ask to put a 90 engine into a 94 car most often the question is the other way around.There is a shortage of 90-93 engiens due to them self destructing if the cam guides havent been done yet (even tho otherwise they are among the very best engines in the world)
As a result 94-95 engines are actually cheaper to buy.
So most questions we get on this are "can I fit the 94/95 engine into a 90-93 Q?".
Unless you are getting your cheap 90 engine from an actual friend or club member here, I would be very suspicious of its quality.
Very very few 90-93 engines on the market that are less than 2-2.5k are any good.I have once paid over 3.5k for a sludgy engine w/o the guides done!
If you go thru the work+expense of putting a 90 engine into a 94 be sure it has the guides done and is a good clean engine with good compression.And you should be getting it virtually free for the economics to make sense compared to just buying a 94 engine.Cuz a 94 engine doesnt need new guides, is cheaper to buy used, you will have a greater slection to choose a good one from and the labor would be much less and require less expensive aditional parts.
Fred...
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