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  #1  
Old 07-02-2008, 01:32 PM
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Default engine swap

I am wanting to swap the stock 5.0 engine in my 1988 Cadillac Brougham D'elegance for a 350. Any tips or pointers? How much should I expect to have to spend on this? Anyone have a good used 350 for sale?
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Old 07-02-2008, 02:58 PM
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Default RE: engine swap

Is that 5.0 a Chevy or Olds ? I think it is an Olds 307 so you should look for an Olds 350, what the heck look for an Olds 455!
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2006 DTS Performance - L37 32v Northstar NHP V8 292 HP - 1 of 1
1999 STS - L37 32v Northstar V8 300 HP
1998 Deville D'Elegance - LD8 32v Northstar V8 (Sold July 9, 2011 with 225,000 km)
1993 Fleetwood - L05 5.7 TBI V8 (Sold July 18, 2012 with 308,000 km)
1999 GMC Suburban SLT- 5.7 Vortec
1998 Olds 88 LS - Series II 3.8 V6
1973 Pontiac LeMans GT - 454 V8 1 of less than 5
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  #3  
Old 07-02-2008, 03:26 PM
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Default RE: engine swap

Would a 455 fit? If it would fit, thats what I will do. Lol, i complain about gas now.
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Old 07-02-2008, 05:10 PM
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Default RE: engine swap

what about a crate motor?
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Old 07-02-2008, 09:01 PM
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Default RE: engine swap

Quote:
ORIGINAL: G.A.R.Y.

what about a crate motor?
GM crates are all Chevy so he would need a new transmission, Two patterns Chevy and BOP I believe.

As far as 455 goes I am not an Olds expert but I believe the 307, 350 and the 403 share the block while the 455 is out there with teh 425. There is no noticeable difference in physical size. The 403 is a good motor too and would be a straight bolt in. Remember that Pontiac used this in the Trans Am andsome Can Am's.
__________________
2006 DTS Performance - L37 32v Northstar NHP V8 292 HP - 1 of 1
1999 STS - L37 32v Northstar V8 300 HP
1998 Deville D'Elegance - LD8 32v Northstar V8 (Sold July 9, 2011 with 225,000 km)
1993 Fleetwood - L05 5.7 TBI V8 (Sold July 18, 2012 with 308,000 km)
1999 GMC Suburban SLT- 5.7 Vortec
1998 Olds 88 LS - Series II 3.8 V6
1973 Pontiac LeMans GT - 454 V8 1 of less than 5
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  #6  
Old 07-03-2008, 06:41 AM
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Default RE: engine swap

A 403 would bolt right in? Hmmmm. Thats interesting. I might just do that. I want a little more pep then what my 5.0 is giving me. I really appreciate the help guys, i will have to try to find a 403 then.
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  #7  
Old 07-03-2008, 08:50 AM
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Default RE: engine swap

Yes a far as I know the 403 swap for a 307 is common among Olds guys. Both are Olds small blocks and the 455 is a big block. Other Olds small blocks are the 330 and 350. The 403 was rated at 185 HP in most applications but it does have a lot of torque, 320 ft lb at 2000 rpm. For comparison, the Y code Cadillac Northstar has 275 HP and 300 ft lb torque and while Oldsmobile used several different ratings on the 307 over the years generally the engine was rated at 140 net horsepower and 240 ft lb of torque. Torque is what you feel so it would be a big improvement for you.
__________________
2006 DTS Performance - L37 32v Northstar NHP V8 292 HP - 1 of 1
1999 STS - L37 32v Northstar V8 300 HP
1998 Deville D'Elegance - LD8 32v Northstar V8 (Sold July 9, 2011 with 225,000 km)
1993 Fleetwood - L05 5.7 TBI V8 (Sold July 18, 2012 with 308,000 km)
1999 GMC Suburban SLT- 5.7 Vortec
1998 Olds 88 LS - Series II 3.8 V6
1973 Pontiac LeMans GT - 454 V8 1 of less than 5
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Old 07-03-2008, 08:50 AM
 
 
 
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1994, 1998, 307, 350, 455, brougham, buick, cadillac, crate, engine, motor, northstar, olds, swap, swaps, v8


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