yngrydr'92 Posted July 26, 2010 Report Share Posted July 26, 2010 Are there any performance mods for the 4.9 engine other than exhaust? I would like to get it around 300hp if possible. Any information would be great!! Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 26, 2010 Report Share Posted July 26, 2010 It puts out about 200 HP, no way to get 300 HP, buy a 93 Seville with a Northstar, bam 270 HP Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Ranger Posted July 27, 2010 Report Share Posted July 27, 2010 The STS will give you 300. Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 27, 2010 Report Share Posted July 27, 2010 The STS will give you 300. 295 in 1993, Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
yngrydr'92 Posted July 27, 2010 Author Report Share Posted July 27, 2010 I had a Northstar. I was hoping nobody would suggest that! Any other ideas?? Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 27, 2010 Report Share Posted July 27, 2010 None, the Northstar is far superior to the 4.9, and there are not a lot of ways to tweak the 4.9 other than the exhaust. How about a Fleetwood with the tweakable 260 HP 5.7L Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
yngrydr'92 Posted July 27, 2010 Author Report Share Posted July 27, 2010 None, the Northstar is far superior to the 4.9, and there are not a lot of ways to tweak the 4.9 other than the exhaust. How about a Fleetwood with the tweakable 260 HP 5.7L Naw a Fleetwood is too big for my style! Yeah the Northstar is a badass engine. I had fun with a Northstar in my bonneville gxp, but I sold it because they don't make any mods other than exhaust! I wanted to try to mod the 4.9 since I have much more play money to do what I want with it. Link to comment Share on other sites More sharing options...
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