Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

WILL A 307 BOLT IN?

Thread Tools
 
Search this Thread
 
Old 07-24-2014, 09:16 AM
  #1  
Junior Member
Thread Starter
 
jdreswick's Avatar
 
Join Date: Jun 2013
Location: New Jersey
Posts: 54
Likes: 0
Received 0 Likes on 0 Posts
Car: 1986 Trans Am
Engine: 327 .030 over sbc
Transmission: wc t5
Axle/Gears: stock
WILL A 307 BOLT IN?

hey guys i got a question for yah that might sound a little weird. Do any of you know if a 307 will bolt in to a 86 t/a t-5? If you are wondering why i am swapping a 305 for a 307 its cause my 305 is just done and a freind of mine has a running 307 that he would give me for 200 bucks. for me i just like driving my car and i wont have the money to do a big engine and trans swap till at least next year. So i was thiking put in the 307 and driving the car for a bit like that till i can get what i want. But do you guys think it will work?
Old 07-24-2014, 09:20 AM
  #2  
Supreme Member
 
rusty vango's Avatar
 
Join Date: Jun 2011
Location: knoxville tn
Posts: 2,036
Likes: 0
Received 5 Likes on 5 Posts
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: WILL A 307 BOLT IN?

it will bolt in, but depending on the year it was built .the accessory bolt holes may not be there. check first
Old 07-24-2014, 09:25 AM
  #3  
Supreme Member

iTrader: (14)
 
aliceempire's Avatar
 
Join Date: Nov 2008
Location: Milwaukee
Posts: 2,002
Received 144 Likes on 119 Posts
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: WILL A 307 BOLT IN?

As long as it is a sbc 307 and not a olds 307 it will work. Only notable differences will be if the 86 305 is a 1pc RMS then the flywheel will be different from the 307's 2pc and the dipstick will be on the D/S instead of the P/S. Regardless you can easily make it work.
Old 07-24-2014, 10:24 AM
  #4  
Junior Member
Thread Starter
 
jdreswick's Avatar
 
Join Date: Jun 2013
Location: New Jersey
Posts: 54
Likes: 0
Received 0 Likes on 0 Posts
Car: 1986 Trans Am
Engine: 327 .030 over sbc
Transmission: wc t5
Axle/Gears: stock
Re: WILL A 307 BOLT IN?

Originally Posted by rusty vango
it will bolt in, but depending on the year it was built .the accessory bolt holes may not be there. check first
so i would need the original accesory drive off the 307?
Old 07-24-2014, 10:26 AM
  #5  
Junior Member
Thread Starter
 
jdreswick's Avatar
 
Join Date: Jun 2013
Location: New Jersey
Posts: 54
Likes: 0
Received 0 Likes on 0 Posts
Car: 1986 Trans Am
Engine: 327 .030 over sbc
Transmission: wc t5
Axle/Gears: stock
Re: WILL A 307 BOLT IN?

Originally Posted by aliceempire
As long as it is a sbc 307 and not a olds 307 it will work. Only notable differences will be if the 86 305 is a 1pc RMS then the flywheel will be different from the 307's 2pc and the dipstick will be on the D/S instead of the P/S. Regardless you can easily make it work.
thanks for the advice. do you know what to do about the carb and computer since the 307 dosent have any elctronic hookups like the 305
Old 07-24-2014, 11:05 AM
  #6  
Supreme Member

iTrader: (14)
 
aliceempire's Avatar
 
Join Date: Nov 2008
Location: Milwaukee
Posts: 2,002
Received 144 Likes on 119 Posts
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
If you reuse the intake manifold from the 305 everything will go right back where they were. Carb and computer should work fine with the 307. Maybe some fine tuning to the carb but it should all be close.
Old 07-24-2014, 11:09 AM
  #7  
Junior Member
Thread Starter
 
jdreswick's Avatar
 
Join Date: Jun 2013
Location: New Jersey
Posts: 54
Likes: 0
Received 0 Likes on 0 Posts
Car: 1986 Trans Am
Engine: 327 .030 over sbc
Transmission: wc t5
Axle/Gears: stock
Re: WILL A 307 BOLT IN?

Originally Posted by aliceempire
If you reuse the intake manifold from the 305 everything will go right back where they were. Carb and computer should work fine with the 307. Maybe some fine tuning to the carb but it should all be close.
nice. i think i might do this that was i have a running car i can still enjoy while i save up for something better. thanks or the help!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
MY87LT
Aftermarket Product Review
13
06-07-2016 09:47 PM
Numbah-1
Transmissions and Drivetrain
19
09-12-2015 08:57 PM
Saxondale
Exterior Parts Wanted
2
09-07-2015 06:11 PM
Jlanz55
Exhaust
7
09-06-2015 07:28 PM
UltRoadWarrior9
Transmissions and Drivetrain
3
09-02-2015 08:24 PM



Quick Reply: WILL A 307 BOLT IN?



All times are GMT -5. The time now is 03:46 PM.