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78 bird man 07-19-2010 07:42 AM

chevy 5.3 motor in a 78 firebird
HI i wont to no if any one has put a 2004 chevy 5.3 L in a 1978 firebird ?
and if so what do i need besides a 5.3 and the wiring harness
And how hard whas it

72highboy390 07-19-2010 08:30 AM

good luck with that one... :thumbup:

eloc431962 07-19-2010 04:16 PM

Welcome to the site. :welcome: You might want to post in the lounge or the engine section for this one. Anything is possible but i don't know of it ever being done before. JMO


78 bird man 07-19-2010 05:09 PM

thanks man im a lil new at this

cobalt327 07-19-2010 05:54 PM


Originally Posted by 78 bird man
thanks man im a lil new at this

Check out HERE, it seems there's good info on the swap. may have info, as will the various LS engine sites. Google is your friend.

Just a "FYI", a lot of guys run the Edelbrock p/n 7118. It is an MSD ignition controller that also comes w/a dual plane intake for the 5.3L intake for something like $650.

With the carb, MSD controller, headers and the stock cam, this deal will make over 320 HP, and about 350 ft/lb. With a cam, you will make more HP obviously. You'll need springs to go w/the cam.



78 bird man 07-20-2010 06:31 AM

thank you
man that heps a lot thank you i hav ben looking for a long time for that

78 bird man 07-21-2010 05:35 AM

chevy 5.3 engine swap in my 78 firebird
can any one help me find some info on puting a chevy 5.3 in my 78 firebird

like what i will need what i will have to make mods on ?

will the stock chevy wiring work ?

stuff like that is what i am looking for thanks

bigolblackie 07-23-2010 02:20 AM

I hope you get some replies,5.3 in trucks are good motors Im been told. My towtruck has the 6.0 and thyer allmost the same,good luck. :welcome: :pimp:

joe_padavano 07-23-2010 06:03 PM

Putting an LS in a 78 Firebird is EXACTLY the same as putting one in a second gen Camaro. That's been done many, many times. Search for articles and parts for that swap.

78 bird man 07-25-2010 04:37 PM

thank you
thanks man il do that

78 bird man 07-25-2010 05:20 PM

will a turbo 350 trany bolte up to a 2000 to 09 5.3 motors?

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