i have a 91 z28 auto convertible (305 tpi) what all would i have to change to make a gm 350 350hp engine run right in my car

 

All you really need to do is drop it in. Obviously, you need to do some prom tuning to allow for displacement changes and the necessary fuel/spark needs to make the power you want. The engine it self should fit without problems. I have a 383 in my 92. The block is an 80 and it went it with no trouble or surprises.

 

i know the engine will fit and everything will bolt up but my main problem is what about the computer,injectors,fuel pump stuff like that will i have to change it it or will it ru it

 

first if you do a search their is alot of info on this topic i have done same type deal already but computer you will need the get a prom chip burned, and fuel pump might be ok i went ahead and put a new one in and it all depends on what size injectiors you have in their now something like 22# should be fine

 

Your computer is going to work fine, you need to recalibrate your exsisting prom or learn to burn your own. The fuel pump will work, provided it is in good working order and you may want to upgrade your injectors. 22# was stock on 350s, 19# was stock on 305s. Alot of people run 24# injectors, I run 30#. I think some 22#ers will be fine for your goal.

 

It's a shame this website doesn't have a search feature.

Oh, wait.

 

now THAT was a stroke of genius. :hail:

 

Hey....make sure that your heads are made for your manifold...i dont know the years but i know i had cast heads on my 305 and put aluminum heads on but the 4 center holes were angled...the cast heads were straight up and down.....make sure you check this cuz i was pretty pissed that i had to modify my manifold after the motor was in the car......trust me its a pain in the ***......just letting you know.....also dont go cheap on anything....im now running into problems.....like using the gaskets provided with a new water pump....big mistake....mine leak.....so now i have to go and take off the NEW water pump and replace the NEW gaskets with Fel Pros......trust me dude....any problem with the TPI ive had it since sept......anything else just leave a post....