Need acc bolts or bolt sizes

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Jan 10, 2008 | 10:52 PM

SUPERWAKE502

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Staging Lane

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From: Jacksonville, Fl

Need acc bolts or bolt sizes

Ok, I need either a bunch of bolts or the sizes so I can get some from a bolt place. Heres what I need. (Lq4 6.0L)

starter bolts
alternator
ac compressor
main engine acc idler arm
power steering pump and resevoir
motor mount bolts that go in the block

Thanks, Lee

Last edited by SUPERWAKE502; Jan 11, 2008 at 09:13 AM.

Jan 11, 2008 | 10:15 AM

82z28macdady

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i have a list lying around my house from when i looked them up. Send me a PM so I dont forget to post it. starter bolts are special and will have to be ordered (i think its 7 or 8 dollars for the 2).

Jan 11, 2008 | 10:21 AM

Steve VanS

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The starter bolts are 2 lengths, and are "special" in that they are a "body fit" into the starter mounting plate. They are M8x1.25 x length1 and M8x1.25 x length2. You may have to get these at the GM dealer. I think that all of the other accessory mounting bolts are M10x1.5 and there has been a post somewhere on LS1tech that lists many of the bolts needed on the engine. If you can't find it, measure the length of the boss that a bolt goes thru, and add 15mm (minimum) to get the bolt length needed. Bolts are sold in increments of 5mm in the length range you will need (30mm to 60mm under the head), so go a little long ie, use 40mm if you come up with 37mm needed. metric bolts go by "property class" which is similiar to SAE grades. Metric 8.8 bolts are similiar strength-wise to an SAE grade 5. M10 / 8.8 hex heads are plenty strong for the accessories.

Jan 11, 2008 | 10:42 AM

SUPERWAKE502

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Staging Lane

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Thanks guys for the help. I'l see what I can come up with, Lee

Jan 11, 2008 | 12:07 PM

bczee

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This may help.. you can find the link in the FAQ / Sticky

http://www.enginepartsplus.com/pdf/G...20Hardware.pdf

Jan 11, 2008 | 02:54 PM

82z28macdady

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yea 8.8 is strong enough and cheap. Anything holding the motor though should be the SAE grade 8 (10.9 metric isnt it?) . My list was made by a guy working at the parts department in a GM dealership. Any bolt size that they had available to them he wrote down for me. Serveral kinds of bolts (starter, intake bolts, etc) they didnt give measurements for.

You're right Steve, I'm 90% positive all accessory bolts were M10x1.5.

Jan 12, 2008 | 11:23 AM

82z28macdady

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heres what i have

coolant crossover 4x m6 x 1x30
intake bolts 10x m6x1x21.8
water pump bolts 6x m8x1.25x83ps pump 3x m10x1.5x35
throttle body bolts 5x m6x1x30
alternator bolts 2x m10x1.5x125
1x m10x1.2x90

tensioner pulley bolts m10x1.5x40

starter bolts that i couldnt find measurements for gave gm part numbers 12561848 and 12561378 and it was $12 for both