TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

swapping a 305 to a 360 69 block???

Thread Tools
 
Search this Thread
 
Old Jan 6, 2002 | 11:13 AM
  #1  
Dans91's Avatar
Thread Starter
Junior Member
20 Year Member
 
Joined: May 2000
Posts: 83
Likes: 0
From: Beale AFB, CA, USA
Car: 91 RS
Engine: 305
Transmission: 700r4
swapping a 305 to a 360 69 block???

Ok, here it goes. Hopefully you all could be a great help to me, i am swapping my little 305 out and replacing it with a 360 (350 bored 60 over) out of a 69 vette. The motor has a whole forged bottom end and 327 ported and polished heads. The heads have bigger valves and stronger springs. I dont know exactly what kind of springs and valves but they are bigger than stock of course. My question would be if i could get this block to run with a TBI computer controlled unit?? Also were would i be able to get a prom chip for this kinda stuff?? I hope to have this motor up and running by May of this year, it is already put togather but i have to work out everything for the TBI swap. Is there an aftermarket TBI that i can actually find for a good price?? Also where can i put the Knock sensor at??

Thank you for any of your help and please also if you could help find me a nice size camshaft that i can run please let me know of one??

Lata
Reply
Old Jan 6, 2002 | 02:25 PM
  #2  
Tas's Avatar
Tas
Supreme Member
 
Joined: Jul 1999
Posts: 4,310
Likes: 1
I don't think those old heads will have accessory holes. You might want to check.
Reply
Old Jan 6, 2002 | 06:01 PM
  #3  
Dans91's Avatar
Thread Starter
Junior Member
20 Year Member
 
Joined: May 2000
Posts: 83
Likes: 0
From: Beale AFB, CA, USA
Car: 91 RS
Engine: 305
Transmission: 700r4
you know after you said something about it, it comes out that you are right, damn that sucks. I will have to buy a set of 89 iroc heads and use those instead. Oh well stuff happens.
Reply
Old Jan 6, 2002 | 10:17 PM
  #4  
iroc22's Avatar
Supreme Member
 
Joined: Jan 2001
Posts: 4,415
Likes: 2
From: Surrey, BC
Some issues you need to figure out:
1) Driver's side dipstick on the 60's engine won't fit stock manifolds.(You probably wont be using stock manifolds anyway!)
2) Center two intake bolts to each head are a different angle on the TBI manifold (using an aftermarket pre '87 4bbl intake will solve this)
3) '85-prior engines used two-piece rear main seal, which will require a different flexplate/flywheel. (This can be solved by using the tranny that came with the engine ie.muncie,th350/400)
4)The starter probably will not bolt up. You'll need to drill a hole. get a machine shop to do it for you, it shouldn't cost alot.(Thats if you are going to use a newer starter, if you use the old one that is with the block and tranny, then this doesnt apply)

I already went through this cause my dad had a 283 lying around collecting dust so I wanted to swap out the 305, but it was too much of a hassle it seemed. Who knows maybe someday I will get around to it.
Reply
Old Jan 7, 2002 | 03:13 PM
  #5  
Dans91's Avatar
Thread Starter
Junior Member
20 Year Member
 
Joined: May 2000
Posts: 83
Likes: 0
From: Beale AFB, CA, USA
Car: 91 RS
Engine: 305
Transmission: 700r4
would there be any way that i could use my stock tranny with this set-up, I have had an awful lot of work done to my 700r4 tanny and i would love to use it......???????

If you know of a way please let me know so i can try and find the stuff right now
Reply
Old Jan 7, 2002 | 10:53 PM
  #6  
iroc22's Avatar
Supreme Member
 
Joined: Jan 2001
Posts: 4,415
Likes: 2
From: Surrey, BC
There is maybe a possibility of getting a different flexplate for your Th700r4 maybe to work with the older engine. Maybe try posting this under Motor Swap...you might get some better responses
Reply
Old Jan 7, 2002 | 11:07 PM
  #7  
Tas's Avatar
Tas
Supreme Member
 
Joined: Jul 1999
Posts: 4,310
Likes: 1
good idea. I copied this thread to the motorswap board.

Last edited by Tas; Jan 7, 2002 at 11:10 PM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jhawkeye
Engine Swap
5
May 25, 2022 06:33 PM
Jake_92RS
Tech / General Engine
8
Jan 28, 2020 10:37 PM
Fast355
DFI and ECM
14
Dec 2, 2016 06:33 PM
cstrobel65
Tech / General Engine
5
Aug 15, 2015 10:19 AM
st.evel07
Engine Swap
5
Aug 13, 2015 06:15 PM




All times are GMT -5. The time now is 01:42 PM.