i have been reading threw all of these post and i am still needing help some of these questions might be a little dumb but i need your help yall are experts at this as i can tell from reading all the other post! I am in the military so i got married and got sent off right away but my wife had bought me a 1984 Z28 for a gift so the car has been sitting for over a year now if that matters. now that i am back i want to do a swap but don't really know what ALL i need i want a 350 do i need a Long block or short block dose it matter? do i need to do any thing to my computer? its a carb now do i have to use that carb or can i put a new one on it with no problem? will a 350 bolt right up to my 700r? is there any advice all could give me to make this a little smoother of a swap would be really nices. I do alot of highway driving what is the best set up for my car? i have alot more questions bu yall could just help me with these that would be nice thank you for your help means alot!

 

Welcome aboard thirdgen.org, and thank you for your service.

The current 305 carb set-up is actually pretty good for mostly highway service. The first things that should be changed are the exhaust (every last piece of it) and air cleaner (replace the single snorkel with dual snorkel). That should be done before you ever consider a 350.

After that, a 350 shortblock will be fine, along with your current heads, carb and distributor. It will all bolt to a 350 shortblock, and the 350 will bolt to the TH700R-4 just like the 305. The computer will be fine. The carb secondaries would benefit from better rods & hanger.

 

Thank you for your help the reason i am taking out the 305 when my wife bought it from the guy told her it had a thrown rod. so i just figured it would be nice to have a little more power and i won't cost to much more to rebuild a 350. so with useing the old heads so get them rebuilt so just bolt them right up? do you have any suggestions on what i could use to get a little more power out of the 350 have around 3000 dollars just for the motor? thank you again for your help!