4.9L OHV Cadillac V8 swap, will it fit?

IsaacHayes · Post by **IsaacHayes** » Fri Jan 13, 2006 3:40 pm

Will a 4.9L OHV (not northstar) Cadillac V8 fit into our engine bays?

I know it will bolt right up to our trans, and it was made for my 4T60-E actually. It's aluminum block with iron heads, so I don't think the weight will be much more from the 3100 that's in there right now. Maybe even less. Only 200hp, but some exhaust, P&P work, and then maybe throw on a turbo or CSC for more power.

IIRC it uses the same firing order as a SBC, so it would sound pretty bad-*** with the exhaust nice and loud. It would be a lot different from all the other usual swaps.

Actually a 5speed would be a pretty sweet setup, save some weight and you can say you have a MT V8 beretta. But if you already have the 4T60-E, you don't have to worry about it not being able to take the power...

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But before we get too carried away with this, will it even fit?
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-Isaac

berettaspeed · Post by **berettaspeed** » Fri Jan 13, 2006 7:46 pm

I would say yes. i was tihnking about this for my 93 auto. the thing is with the 91 and older berettas the mount might pose a problem. but i don't know what all is needed, so i think taking the whole ECU and wiring harness is a must. a higher flow fule pump. and expect to possibly cut some of the frame or something if it doesn't fit.. but it should work. you will get a nice V8 tone too...ahhhhhhh but i asked my self do these engines hold up well to abuse?? there are not many around.. it was a though of mine about 6 months ago, i decided i rather go with a 3400 for my 93, when the time comes. much easier.

rweatherford · Post by **rweatherford** » Fri Jan 13, 2006 10:34 pm

Doesn't a 3400 make that much power?

zach82 · Post by **zach82** » Fri Jan 13, 2006 10:36 pm

A 3400 makes 180-185 in stock form.

Norm 88GT · Post by **Norm 88GT** » Fri Jan 13, 2006 11:21 pm

I considered the same idea but N*4.6/4.0 or 4.9, aftermarket is about the same as the 2.8/3.1 and maintence not worth the price.

Got to love a V8!

Norm

ErichZ26 · Post by **ErichZ26** » Sat Jan 14, 2006 12:29 am

It makes a lot of torque is relatively light weight, and has the same firing order as a 350 and bolts to the same bellhousing. Good for a cheap swap into a Fiero, Lumina, a body, Beretta might be a bit much.

berettaspeed · Post by **berettaspeed** » Sat Jan 14, 2006 12:34 am

i think they are like 270 TQ...

Norm 88GT · Post by **Norm 88GT** » Sat Jan 14, 2006 10:03 am

Might as well go with a V6 if your only making 200hp. Or a N*:

http://www.cardomain.com/ride/665715/1

Norm

Conscious · Post by **Conscious** » Sat Jan 14, 2006 1:03 pm

My dad has one in his fiero. I think itis actually 290/300 ft/lb torque
if it can fit into a beretta I don't know I am still googling over the 3.8 in a beretta

IsaacHayes · Post by **IsaacHayes** » Sat Jan 14, 2006 4:46 pm

Well just for the V8 sound would be the main point. A power adder and carefull tune would be required for decent power.

berettaspeed · Post by **berettaspeed** » Sun Jan 15, 2006 1:18 pm

FI, your best bet would be a remote mounted turbo for that. I would think you would be out of room with the 4.9L. but the Q still remains how much can that engine take as a beating. and making your own headers would be fun..

but those engines just suck to work on. I hate them

IsaacHayes · Post by **IsaacHayes** » Mon Jan 16, 2006 11:51 pm

They may be crappy, but V8 is so alluring even if it's 200hp too.

Perhaps it can be stripped of all it's useless junk, ran with an aftermarket computer and other parts like a frankestien motor? I believe camaro TPI injectors fit it and work like stock...

If I end up with the car/motor for free I might do something with it.. I'd have the trans/motor/computer. I wonder what the gearing is in that seville's 4T60-e... Maybe I'd just steal the transmision lol!

Oh well not a serious idea just something that could happen..... It's fun to toy around with possibilities...

Norm 88GT · Post by **Norm 88GT** » Mon Jan 30, 2006 7:17 pm

It is fun to let the gears free wheel. It is when my best ideas come about.

I think the torque in the 4.9 was 260ish or more. The broad torque delivery and tall stock gear in the much lighter Beretta would make a nice setup even on the street.

Norm

TheWhiteWolf · Post by **TheWhiteWolf** » Thu Feb 02, 2006 2:25 am

I would say that this engine would not fit. Many people sit and go "oh, it fits a Fiero" or what not, but nearly everyone forgets what is a major difference between the amount of useable room. You do not have to contend for space in the rear of the Fiero as you do in a Beretta.

I can not remember off hand, but I thought the V8 "Feretta" (or was that the twin turbo) but whatever was extended mainly due to the space needed away from steering components and the corners were raised to contend with the height of the engine.

Even if you do find a way to fit it in the engine bay, what happens if you need to change the water pump or an alternator or any part that would be typically found on the sides? Gunna remove the engine to get to parts that would be along the sides?

I know for sure that even just the swap over to the 3400 will make a stock GTZ quad look like a '95 V6 Mustang (tried to be a little more realistic and still make a point)

nocutt · Post by **nocutt** » Thu Feb 02, 2006 9:30 pm

The 4.9 will fit...this is not based on semantics...IT WILL FIT!! Now how work will be done on the engine is basically based on how the engine was/is installed. Regardless this is a very potent STREET engine in a beretta, (as already mentioned) of course with the right suspension.

Cannot beat 200hp @ 4100RPM and tire scorching 275ft/lb Tq @ 3K...

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