question about 305 swap!
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Junior Member
Joined: Sep 2006
Posts: 69
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From: lisle,il
Car: 1988 pontiac trans am
Engine: L03
Transmission: auto
Axle/Gears: ??
question about 305 swap!
im buying a 305 tpi long block from an 87 camaro to replace my 305 tpi in my 89 trans am! the long block has a bigger crank in it than my 305! is there going to be any problems when i swap them besides just needing an intake for the motor?
Joined: Feb 2002
Posts: 3,462
Likes: 4
From: N. Illinois
Car: 92 GTA/ 00 TA
Engine: 383/350
Transmission: 700R4/T-56
Re: question about 305 swap!
I don't understand why you have a bigger crank stock for stock.
Why would you need a new intake? They should both work. Just swap the 1 runner to block off the CSI.
Why would you need a new intake? They should both work. Just swap the 1 runner to block off the CSI.
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: question about 305 swap!
If he told you that, then he has no idea what he's talking about.
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: question about 305 swap!
Nothing at all. There are no "bigger cranks". The 1987 engine is going to be the same as your 1989.
Senior Member
Joined: Jan 2006
Posts: 793
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From: Michigan
Car: 1987 Trans Am
Engine: 5.0L TPI
Transmission: 700R4
Axle/Gears: Richmond 3.73
Re: question about 305 swap!
only difference will be the 87 will have a multi belt system. Where your 89 was a Serpt belt set up. Also the Alternator and the A/C pump are swapped.
Crank is the same.
Crank is the same.
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