Guest 400 ci 280z Posted December 14, 2001 Share Posted December 14, 2001 does anyone know how much power a pontiac 400 puts out? it is a 77 out of a trans am. Quote Link to comment Share on other sites More sharing options...
Sumo Posted December 14, 2001 Share Posted December 14, 2001 About 185-220hp i think Quote Link to comment Share on other sites More sharing options...
Guest 400 ci 280z Posted December 14, 2001 Share Posted December 14, 2001 i thought there would be more than that Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted December 14, 2001 Share Posted December 14, 2001 two words: smog emmissions. they really put a choke hold on those motors for a while. you would be amazed at how much they cut into a motor performance. i remeber seeing a certain year mopar 318 rateed at only 108 HP and that was flywheel HP to boot Quote Link to comment Share on other sites More sharing options...
staledale Posted December 15, 2001 Share Posted December 15, 2001 Make sure it's a Pont. GM started putting Olds engines in the TA at that time most auto trans had Olds and the sticks had Pont. Quote Link to comment Share on other sites More sharing options...
staledale Posted December 15, 2001 Share Posted December 15, 2001 The fifth number in your VIN on the dash will be a K if it's an Olds, and fitting it will be a Z if it's Pont.( that's for 1977) Quote Link to comment Share on other sites More sharing options...
Guest 400 ci 280z Posted December 15, 2001 Share Posted December 15, 2001 thanks for the info Quote Link to comment Share on other sites More sharing options...
Sumo Posted December 15, 2001 Share Posted December 15, 2001 i have a 78 Trans Am from California and they only came with an Olds 403 185 h.p. smog choked power. But on the other hand it does really well on its own unless newer technology v8 passes me by. But then again i have 200,000 miles on the original engine and its just starting to smoke a little. I just hope to restify it one day. Quote Link to comment Share on other sites More sharing options...
fl327 Posted December 16, 2001 Share Posted December 16, 2001 those motors can make some nice power, the cubes are all there you know. Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted December 16, 2001 Share Posted December 16, 2001 if your willing to spend some money those pontiac 400 and 455 engines can run just as hard as most 396 and 454 big block chevy engines. the pontiac engines cost a little more for parts but in some ways are easier to work on and can be made to scream! 500 hp is easy! look here, http://www.pontiacpower.com/ http://www.krepower.com/ but if you got stuck with a 403 olds engine cut your losses, swap too and build a chevy because the olds 403 will require a stud girdle and aftermarket heads to RELIABLY run at 500hp which in parts and machine work alone will soon cost more than a chevy swap. Quote Link to comment Share on other sites More sharing options...
Guest 400 ci 280z Posted December 16, 2001 Share Posted December 16, 2001 thanks for the advice Quote Link to comment Share on other sites More sharing options...
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