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LO3 305 to L31 350 swap parts list. Did I miss anything?

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Old Dec 26, 2010 | 05:01 AM
  #1  
Grumbles's Avatar
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Joined: Aug 2009
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From: AZ
Car: 1978 Chevrolet impala
Engine: 350ci 300hp/356tq pace crate
Transmission: 700r4
Axle/Gears: 3.42 Yukon posi
LO3 305 to L31 350 swap parts list. Did I miss anything?

I will be camming the motor as well, so those bits and pieces are included.

FIREBIRD: GUTS LIST

Water pump $37
http://www.autozone.com/autozone/parts/Valucraft-New-Water-Pump/1996-Chevrolet-C1500-1-2ton-P-U-2WD/_/N-j5co3Z9pd8f?counter=1&itemIdentifier=826644_176315_0_

Head Gasket (purchase 2) $30
http://www.summitracing.com/parts/FEL-7733PT2/

Intake Manifold Gaskets $24
http://www.autozone.com/autozone/parts/Felpro-Intake-Manifold-Gasket/1996-Chevrolet-C1500-1-2ton-P-U-2WD/_/N-j5co3Z93xym?counter=5&filterByKeyWord=intake+manifold+gasket&fromString=search&itemIdentifier=579207_29647_5297_&sortType=low

Flywheel $88
http://www.summitracing.com/parts/ZZZ-50-6527/

Clutch Kit $100
http://www.summitracing.com/parts/ZZZ-MU56-1/

Intake Manifold $156
http://www.summitracing.com/parts/PFS-52028/

Camshaft $226
http://www.summitracing.com/parts/NAL-24502586/

or

http://www.willhoitescams.com/ ($130)

Timing Set $27
http://www.summitracing.com/parts/SUM-G6503/

Timing Cover $26
http://www.summitracing.com/parts/NAL-12562818/

Timing Cover Gasket Set $8
http://www.summitracing.com/parts/MIL-65503/

Oil Filter Adapter $20
http://www.summitracing.com/parts/SES-3-60-08-900/?rtype=10

Spring Kit $89
http://www.alexsparts.com/products/VALVE-SPRING-KIT%2C-SB-CHEVY-VORTEC%2C-HI%252dPERF-HYD-ROLLER-%26-MECHANICAL-FLAT-TAPPET.html

Valve Seals $16
http://www.alexsparts.com/products/UMBRELLA-SEALS%2C-SB-CHEVY%2C-VITON.html


TOTAL PRICE: $770 - 860

of course this is not accounting for the ~$100 in hoses and other bits and pieces. Already have poly motor mounts waiting to go in.
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Old Dec 31, 2010 | 01:17 AM
  #2  
Grumbles's Avatar
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Joined: Aug 2009
Posts: 332
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From: AZ
Car: 1978 Chevrolet impala
Engine: 350ci 300hp/356tq pace crate
Transmission: 700r4
Axle/Gears: 3.42 Yukon posi
Re: LO3 305 to L31 350 swap parts list. Did I miss anything?

Bumpedy bump. Any advice much appreciated!
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Old Feb 25, 2011 | 04:33 PM
  #3  
cmnewark's Avatar
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Joined: Dec 2009
Posts: 8
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From: Wylie Tx
Car: 1989 RS,
Engine: 305 TBI....for now
Transmission: T-5.... for now
Axle/Gears: '89 3.73
Re: LO3 305 to L31 350 swap parts list. Did I miss anything?

Looks like a good list. Let me know how it goes, I'm looking at doing a similar swap into a 89 RS. I'm going with the GMPP 12496821 manifold though for the EGR.
GL!!
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Old Feb 25, 2011 | 09:37 PM
  #4  
vetteoz's Avatar
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20 Year Member
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Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: LO3 305 to L31 350 swap parts list. Did I miss anything?

Originally Posted by Grumbles
Any advice much appreciated!
What front accessory drive system are you using?

Need a water pump that will fit / suit your car ; not the engine
Truck pumps tend to be long ones / car pumps are generally short style
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Old Mar 16, 2011 | 12:23 AM
  #5  
mikesanto70's Avatar
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Joined: Sep 2009
Posts: 186
Likes: 1
From: Scottsdale, AZ
Car: 1991 RS L99 1992 Z28 L98 Heritage
Engine: L99 L98
Transmission: 6L80E / 700R4
Axle/Gears: 3.23 LSD disc (both)
Re: LO3 305 to L31 350 swap parts list. Did I miss anything?

You cant just drop that thing in behind the 700R4 since its a TBI already. What is the least amount of swap parts that I need to go in place of the L03, and use the stock 700R4. I'm looking for the least painful/expesive way to be able to lay rubber w/ my right foot, also putting a rear end from 02'Z28 w/ 3:42's, should be healthy since my brothers 1996 single cab 2wd stepside 5.7 L03 w/ 3:73's was a beast, I mean quick, it used to hang w/ my 85' TPI Vette to 100mph.
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Old Mar 16, 2011 | 12:26 AM
  #6  
mikesanto70's Avatar
Member
 
Joined: Sep 2009
Posts: 186
Likes: 1
From: Scottsdale, AZ
Car: 1991 RS L99 1992 Z28 L98 Heritage
Engine: L99 L98
Transmission: 6L80E / 700R4
Axle/Gears: 3.23 LSD disc (both)
Re: LO3 305 to L31 350 swap parts list. Did I miss anything?

Correction, typo, my brothers chevy was a L31, accidently put L03, but it was insane for the day back in 96' when it was new, just a cat-back and a K&N
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Old Mar 16, 2011 | 01:29 AM
  #7  
mikesanto70's Avatar
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Joined: Sep 2009
Posts: 186
Likes: 1
From: Scottsdale, AZ
Car: 1991 RS L99 1992 Z28 L98 Heritage
Engine: L99 L98
Transmission: 6L80E / 700R4
Axle/Gears: 3.23 LSD disc (both)
Re: LO3 305 to L31 350 swap parts list. Did I miss anything?

where in AZ are you from?
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Old Mar 16, 2011 | 06:19 PM
  #8  
five7kid's Avatar
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25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Why are you getting the head gaskets and oil filter adapter?
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Old Mar 17, 2011 | 06:43 AM
  #9  
thomas1976's Avatar
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Joined: Jun 2006
Posts: 2,199
Likes: 1
From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: LO3 305 to L31 350 swap parts list. Did I miss anything?

Here is a great sticky tread from the TBI forum, with all details https://www.thirdgen.org/forums/tbi/...i-buildup.html
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