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possible 305 to 383 stroker swap

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Old Mar 24, 2011 | 10:48 PM
  #1  
Camarocrazy218's Avatar
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Joined: Mar 2011
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From: Philadelphia PA.
Car: 1988 Camaro Sport Coupe Convertible
Engine: 305 TBI
possible 305 to 383 stroker swap

Hi im new to the forum i joined to hopefully get some good advice about my 88 sport coupe....still has its original 305 tbi engine....i came across a friend of a friend who has a 383 stroker engine in his garage and needs it gone so my question was will this bolt to my stock transmisson and motor mounts or will i need to make some major changes...the engine is a complete carb to oil pan engine also wondering how hard it is to change to a carb...im hoping this swap will work the only thing my camaro lacks is power any advice would be great thanx.....
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Old Mar 24, 2011 | 11:03 PM
  #2  
zraffz's Avatar
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Joined: Mar 2009
Posts: 1,402
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From: Sussex County, NJ
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: possible 305 to 383 stroker swap

It will all bolt right up, you'll need a fuel regulator and thats about it.

Your accessories will not bolt to his motor more then likely. The holes for the brackets are in different spots from year to year.
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Old Mar 24, 2011 | 11:08 PM
  #3  
vetteoz's Avatar
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Joined: Apr 2005
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: possible 305 to 383 stroker swap

Originally Posted by Camarocrazy218
will this bolt to my stock transmisson
the only thing my camaro lacks is power
How long you trans and diff will last with the Hp of the 383 is of more concern.
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Old Mar 24, 2011 | 11:15 PM
  #4  
Camarocrazy218's Avatar
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Joined: Mar 2011
Posts: 2
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From: Philadelphia PA.
Car: 1988 Camaro Sport Coupe Convertible
Engine: 305 TBI
Re: possible 305 to 383 stroker swap

well ill have to figure somthing out for the accessories i figured about the trans and rear what kind of trans is in my car and could i do anything to make it stronger or would i be better of finding a 350 trans???? my head gasked has been bad for like 2 years now the cars been decorating my driveway for a while so i pulled it in the garage and started taking the heads off and was thinking mabey i should just put a diff engine in do they sell brackets for the accessories or anything i can do to figure out what id need also was wondering
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Old Mar 25, 2011 | 07:20 AM
  #5  
vetteoz's Avatar
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20 Year Member
iTrader: (13)
 
Joined: Apr 2005
Posts: 7,736
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: possible 305 to 383 stroker swap

Originally Posted by Camarocrazy218
do they sell brackets for the accessories or anything i can do to figure out what id need also was wondering
Need to see if the bolts holes on front of heads match those on old motor so old accessory drive will bolt up.
If not you may have to go to a earlier setup that works with the heads on the new engine
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Old Mar 27, 2011 | 12:41 PM
  #6  
grampaben's Avatar
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Joined: Dec 2010
Posts: 49
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From: Whitney, TX
Car: 1987 IROC-Z
Engine: 383 stroker, 1st F.I. TPI
Transmission: 700R-4. Modified to handle engine
Axle/Gears: 10 bolt 3.42 posi
Re: possible 305 to 383 stroker swap

If you stick with the tbi set up, you'll get better fuel economy then with the carb. You will have to overcome some computer and fuel pressure issues though to feed the extra cubes.
Don't you have a 700R4 tranny? I have one behind my stroker (426HP 500TQ) and
have only replaced the governor springs and put in a corvette servo. Shifts solid.
has overdrive and is holding up well to my abuse.
I also have the stock 10 bolt posi under it. It's holding up but I haven't put a set of slicks under it and done an all out launch. I expect that will crater when I do...
I took pics during the swap. only had to modify the AC bracket to clear the bigger aluminum heads and tall valve covers, and one bolt hole on the alternator. shoot me a note and I'll send you the pics.

Last edited by grampaben; Mar 27, 2011 at 12:44 PM. Reason: more info
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