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lq4 assembly question

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Old May 22, 2016 | 06:30 PM
  #1  
blackbeauty89's Avatar
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From: Owatonna, MN
Car: 1989 Pontiac GTA/2007 TrailblazerSS
Engine: 350 L98/LS2
Transmission: 700-R4/4L70E
Axle/Gears: 3.27/4.10
lq4 assembly question

so I got my lq4 back from the machine shop and need to assemble. I still need to get new rod bolts, but I have my main bearing cap bolts. however I didn't get the bolts that go on the side of the caps from outside the block. will I be ok if I don't get new side bolts? or should I get new ones? also, is there a good source to look at torqe specs and procedures?
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Old May 22, 2016 | 07:22 PM
  #2  
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From: Rochester NY
Car: 1984 TA (1 stock / 1 custom)
Engine: LG4 / turbo LQ4
Transmission: 700R4 / 4L80E
Axle/Gears: Stock / 3:50 Moser 9"
Re: lq4 assembly question

You should be ok using the stock main cap bolts. If you're planning on making decent power you might want to get new ARP bolts though. I installed all new ARP fasteners on my LQ4 build for added peace of mind.
Here's a pretty informative LQ4 manual online you can reference:
http://www.pleasurecraft.com/manuals/L510016.pdf
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Old May 22, 2016 | 07:28 PM
  #3  
blackbeauty89's Avatar
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From: Owatonna, MN
Car: 1989 Pontiac GTA/2007 TrailblazerSS
Engine: 350 L98/LS2
Transmission: 700-R4/4L70E
Axle/Gears: 3.27/4.10
Re: lq4 assembly question

wow awesome! that's quite helpful, thanks. I think i'll be stock for awhile. i'm more or less doing this on the cheaper side of things
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Old May 23, 2016 | 10:38 AM
  #4  
R13_Braz's Avatar
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From: Garland, TX
Car: 2014 Z28 #80
Re: lq4 assembly question

I'd say just get new side bolts. They aren't expensive at all, and it can't hurt. I went and replaced all of mine when I first built my engine. I think they are actually the same as the cam bolts.

Let me see if I can find the link.

Edit: Here you go. http://www.summitracing.com/parts/na...7-10/overview/
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Old May 28, 2016 | 03:48 PM
  #5  
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Car: 91 Trans Am
Re: lq4 assembly question

You can reuse the side bolts if you put a dab of RTV under the heads. They have sealant under the flange that wears off when torqued and removed. If you just stick the old ones in without sealant, then it will leak oil
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