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.

305 to 350

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Old Nov 5, 2001 | 06:16 PM
  #1  
ChevyGuy87's Avatar
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Joined: Apr 2001
Posts: 341
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From: Kingston, NH
Car: 2004 Wrangler Rubicon
Engine: 4.0
Transmission: NV3550
Axle/Gears: Dana 44s with 4.10 and air lockers
305 to 350

im getting a 85 Trans Am with a junk 305 in it, and my friend has a spare 350 in his shop. im planning on swapping the 305 to the 350. will the 350 bolt right up to the T5 tranny, or are there any unforeseen problems in my future?
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Old Nov 5, 2001 | 06:20 PM
  #2  
87RS402's Avatar
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From: Klamath Falls, Oregon
The starter. If the 350 doesn't have the inline bolt pattern for the starter make sure you drill one while it's out. Use a 5/16 drill bit and 3/8 tap.
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Old Nov 9, 2001 | 11:56 PM
  #3  
Z03Z28's Avatar
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Joined: Oct 2001
Posts: 319
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From: Baltimore Maryland U.S.A
Car: 92Z28,98LegacyGT,ZX9R,91 Z28,02 Z71
Engine: 350,307,2.5,900cc,5.0
Transmission: 700r4,4spd auto,700r4,4L80
Axle/Gears: 323,?,323,?,373
It will drop right in,But if you have a
TPI you will have to get bigger injectors.
If the car came with a T5 trans that starter
will work.Just don't beat on the trans and
no power shifting and you'll be fine so have a ball.
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Old Nov 10, 2001 | 05:32 PM
  #4  
Fbird88's Avatar
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Joined: Jan 2001
Posts: 319
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From: Jacksonville, FL, USA
Car: 1988 Firebird
Engine: GM Performance Parts 350 HO
Transmission: T56
Axle/Gears: :(
You'll also need a 350 knock sensor.
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Old Nov 10, 2001 | 11:26 PM
  #5  
ChevyGuy87's Avatar
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Joined: Apr 2001
Posts: 341
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From: Kingston, NH
Car: 2004 Wrangler Rubicon
Engine: 4.0
Transmission: NV3550
Axle/Gears: Dana 44s with 4.10 and air lockers
no, im keeping computers away from this car. the trans am comes with Edelbrock Performer RPM intake, holley dbl pumper with manual choke, headers, and 3 inch exhaust. no computer control whatsoever (thank g0d). that stuff will all bolt right up to the 350, right?
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Old Nov 11, 2001 | 12:05 AM
  #6  
Flash84Z28's Avatar
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Joined: Jul 2001
Posts: 602
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From: St.Charles, MO/ Edwardsville, IL
Car: '03 S-10/ '87 Trans Am
Engine: mild 350
Transmission: TH350
Right! I love not having a computer. I changed from a 305 to a 350 a month ago. Real smooth install, diden't need to change the starter, but the flywheel was on backwords and it rattled when I started it. I flipped it around today (part that sticks out torwards converter not block) and it starts perfect. The only problem I have is I forgot to get a vacume advance distributer!

Now what to do with all these wires in the engine bay?

-Matt

------------------
1984 Camaro Z28 - Black w/ Grey int.
-GM Goodwrench 350 with Edelbrock 600 Carb, Edelbrock Preformer RPM intake, AC Delco plugs, 8mm AC Delco wires, 14" Accel filter, Homemade Cold Air Indctn., Edelbrock Chrome valve covers, breather, and Air cleaner.
- Profesionally Built Turbo-350 with 2500 RPM Stall converter, Hurst shifter, & one wicked shift kit.
- Eagle Alloys 15" Alum. Rims surrounded by P235/60R15 BF Goodrich Radial T/A's
-Comming Soon:
3.73's, MAC Cat-Back, hollowed cat., B&M Megashifter, & Paint: Navy Blue Metallic w/ Silver strips
Pics at: http://members.fbody.com/flashz28/

[This message has been edited by Flash84Z28 (edited November 10, 2001).]
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