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difference in 67-85 350s and 86-98 350s

Old Jul 23, 2012 | 09:58 PM
  #1  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
difference in 67-85 350s and 86-98 350s

can anyone tell me a difference in them? im looking at a re ring kit for my block but im finding more of the 67-85 kits than one for my 96 block. whats the difference??
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Old Jul 23, 2012 | 10:13 PM
  #2  
t-top havoc's Avatar
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From: Mid West
Car: '87 Camaro
Engine: '92 Carb'd 350
Transmission: 700r4
Axle/Gears: factory stock
Re: difference in 67-85 350s and 86-98 350s

Intake bolt pattern, angle, & how many bolts, TPI, TBI, computer contnrolled carb or non computer controlled carb, same with distributor, factory roller cam, flat tappet cam
( hydraulic ).
Thats all I can think of. IDK piston, rings, bearings.

Last edited by t-top havoc; Jul 23, 2012 at 10:14 PM. Reason: spelling
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Old Jul 23, 2012 | 10:19 PM
  #3  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: difference in 67-85 350s and 86-98 350s

Originally Posted by t-top havoc
Intake bolt pattern, angle, & how many bolts, TPI, TBI, computer contnrolled carb or non computer controlled carb, same with distributor, factory roller cam, flat tappet cam
( hydraulic ).
Thats all I can think of. IDK piston, rings, bearings.
i think all the bearings and rings are okay, but im more worried about the gaskets, like the rear main seal, are the older blocks 1 peice seal or 2 peice? are all the gaskets the same?
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Old Jul 23, 2012 | 10:22 PM
  #4  
mmadden55's Avatar
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From: Houson
Car: 86 Firebird
Engine: 305 SBC
Transmission: 700 R4 TCI
Axle/Gears: 3.42
Re: difference in 67-85 350s and 86-98 350s

Older blocks are 2 piece. Rings pistons etc the same.
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Old Jul 23, 2012 | 10:27 PM
  #5  
evilemokid94's Avatar
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Joined: Aug 2009
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: difference in 67-85 350s and 86-98 350s

Originally Posted by mmadden55
Older blocks are 2 piece. Rings pistons etc the same.
so like the 85 z28 350s are 2 peice? so if i get this kit all i need to do it get a 1 peice for my block? are the pan gaskets the same? ei 1 peice?
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Old Jul 23, 2012 | 10:55 PM
  #6  
Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: difference in 67-85 350s and 86-98 350s

86+ engines are one piece RMS.

There are no 85 z28 350s.
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