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I have a 1991 Cadillac deville with a 4.9 v8. It has an

Customer Question
I have a 1991...

I have a 1991 Cadillac deville with a 4.9 v8. It has an aluminum block with cast iron heads.Is there aluminum heads by any manufactioner out there that will fit this engine?

Mechanic's Assistant: How many miles are on the car? Is it an automatic or a manual transmission?

The car has about 180 thousand miles on it,but runs very good with an automatic transmission.

Mechanic's Assistant: Are you fixing your DeVille yourself? What have you tried so far?

No but if I can find aluminum heads that will bolt on I will find someone at a repair shop that I feel has the skills to put them on and let them put them on.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

No I don't believe so.

Submitted: 4 months ago.Category: Cadillac
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Answered in 4 hours by:
3/20/2018
Cadillac Mechanic: roybelding, ASE Certified Technician replied 4 months ago
roybelding
roybelding, ASE Certified Technician
Category: Cadillac
Satisfied Customers: 7,746
Experience: 35 years of retail operations working on all vehicles.
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hello, my name is ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.

Roy

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Cadillac Mechanic: roybelding, ASE Certified Technician replied 4 months ago

ok

No, they do not make a aluminum head replacement.

If you are persistent on this, why not just get a 4.5 and put it in?? that had the heads you are looking for and the blocks were stressed relieved so the front and rear mains would not fail.

Roy

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Cadillac Mechanic: roybelding, ASE Certified Technician replied 4 months ago

do you have any other questions

Please take a moment and rate my service 3 stars or better. that is the only way the site will pay me for my efforts.

Roy

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