>Please let me know what you find out. I've been looking at buying a 78 palm
>beach with the 403.
The Cadillac Seville did indeed use the Olds Small Block 350 engine and it
appears that the FI would bolt directly onto any Olds 403 engine but NOT
onto a 455. I looked through the Olds FAQ pages and there's quite a long
discussion about using the Cadillac FI on an Olds application. One of the
difficulties is the FI's ECU which isn't reprogrammable. I don't know if
the flow limit (500cfm) would affect a motorhome application or not. The
discussion sounded disappointed that the FI was only done using small block
Olds engines and that a big block version was never built in production.
Score one for the 403 over the 455.
http://www.442.com/oldsfaq/ofinm.htm Manifolds
It would be a slick application to use the Seville FI in a GMC motorhome.
Seems like it will almost certainly bolt right in. The tough part would be
to get the right amount of fuel to get injected. The Seville system's ECU
was calibrated for the 350 smogger engine and isn't reprogrammable. What's
more, according to the Olds page, it was calibrated differently for
different body styles! I guess one way would be to figure out how to use a
aftermarket Chevt TPI ECU (which uses the same 7-wire module). Heinz is
probably a wealth of info on how to go about something like that.
For more info, check out this article about the original Seville and its
Olds engine:
http://www.rideanddrive.com/76cadillac-seville.html
This is just too obvious for someone not to have done it. Sevilles are in
junkyards all over America and it appears that some of the Eldorados had
the same system as well. That beats the HECK out of a Howell, Rance or just
about anything else IF it's practical to do it.
Thoughts?
-Steve A.
'77 Eleganza II
Everett, Washington
>beach with the 403.
The Cadillac Seville did indeed use the Olds Small Block 350 engine and it
appears that the FI would bolt directly onto any Olds 403 engine but NOT
onto a 455. I looked through the Olds FAQ pages and there's quite a long
discussion about using the Cadillac FI on an Olds application. One of the
difficulties is the FI's ECU which isn't reprogrammable. I don't know if
the flow limit (500cfm) would affect a motorhome application or not. The
discussion sounded disappointed that the FI was only done using small block
Olds engines and that a big block version was never built in production.
Score one for the 403 over the 455.
http://www.442.com/oldsfaq/ofinm.htm Manifolds
It would be a slick application to use the Seville FI in a GMC motorhome.
Seems like it will almost certainly bolt right in. The tough part would be
to get the right amount of fuel to get injected. The Seville system's ECU
was calibrated for the 350 smogger engine and isn't reprogrammable. What's
more, according to the Olds page, it was calibrated differently for
different body styles! I guess one way would be to figure out how to use a
aftermarket Chevt TPI ECU (which uses the same 7-wire module). Heinz is
probably a wealth of info on how to go about something like that.
For more info, check out this article about the original Seville and its
Olds engine:
http://www.rideanddrive.com/76cadillac-seville.html
This is just too obvious for someone not to have done it. Sevilles are in
junkyards all over America and it appears that some of the Eldorados had
the same system as well. That beats the HECK out of a Howell, Rance or just
about anything else IF it's practical to do it.
Thoughts?
-Steve A.
'77 Eleganza II
Everett, Washington
