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  Cam Timing Picture Walkthrough

  • Created by: SappySE107
  • Published: 08-06-2025, 06:21 AM
  • 3 comments

  Cam Timing Picture Walkthrough

  The following pictures and directions should be used as a general guideline and in no way represents every year/modification. I will have a page of all the motor torque specs soon.

  
  

  Parts
  You will want to replace EVERYTHING when you replace the belt. It costs more now but it will save you time and more money later on.

  
  

  timing belt - 24502982

  
  

  tensioner pulley - 24503561 bolt - 10162013

  
  

  idler pullies - 24503859 bolt- 11514441

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  LQ1 Service Bulletin 57-61-09 Lifter tick (cold)

  • Created by: Schurkey
  • Published: 03-02-2012, 02:48 PM
  • 0 comments

  LQ1 Service Bulletin 57-61-09 Lifter tick (cold)

  Dug up the GM Service Bulletin for "Lifter tick when cold", 57-61-09. '91 to '95 LQ1 (VIN X) (mymonte.com is gone) The parts kit has been discontinued by GM long ago. My quest was to find sources for those parts; and complete the procedure on my '93 Lumina Euro 3.4 which was torn apart to replace the rear head gasket. There are three critical part numbers in the GM service kit (aside from gaskets and O-rings) required to perform this operation. Two of the three are readily available in the afterm...

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  Last edited by SappySE107; 07-28-2024, 05:28 PM.

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  3.4 DOHC Heads on a 3x00 Block

  • Created by: bszopi
  • Published: 01-20-2011, 09:08 AM
  • 0 comments

  3.4 DOHC Heads on a 3x00 Block

  Several people have talked about the possibility to use the 3.4 DOHC heads on the 3x00 engines. Some for performance, and some for replacment, where getting a 3.4 DOHC block might be difficult, but getting a 3400 (or even a 3100) block might be easier to come by. For these test fittings, I used a 1994 3.4 DOHC BLOCK, a 1994 3.4 DOHC REAR head, a 1999 3100 SFI BLOCK, and a 1996 3100 SFI head. This article is broken into 3 sections. The first section is BASIC COMPARISONS where I compare the BLOCK o...

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  Last edited by SappySE107; 07-28-2024, 05:19 PM.

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  OBD2 Tuning 3.4 DOHC

  • Created by: Dave96z34
  • Published: 04-17-2010, 04:53 AM
  • 0 comments

  OBD2 Tuning 3.4 DOHC

  The 97 4T65 in the Monte Carlo is almost bullet proof. I have been beating the crap out of my reman with my blower now for 2.5 years of daily driving vs the 60 NA that I couldn't get 1 year out of. 4 Trans in 50K miles. I'm a violent offender. Overfilling and royal purple atf are my secret. DHP will do 96 and 97 DOHC tuning, HPTuners only works with the 97 computer. 96 can not change line pressure, 97 can. 97 bin is double in size of the 96 bin. They changed every thing and it has every ...

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  3.4 DOHC Pistons

  • Created by: SappySE107
  • Published: 04-14-2010, 01:23 AM
  • 1 comment

  3.4 DOHC Pistons

  Here is the TRW catalogue spec sheet for the 91-95 as well as the 96/97 pistons.
  
  TRW 3.4 DOHC Pistons
  Silvolite 3.4 DOHC Pistons Notice that the 96-97 pistons don't have as much compression distance but also have a dome to them. I dont know the exact amount of compression loss you will get when using these pistons with the 91-95 heads, but it goes against the common belief that 96 pistons raise compression. The Silvolite pistons are the EXACT pistons used in the 91-

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