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Old 01-08-2021, 07:54 PM   #1
1958paul
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ly6 main caps

got my block back from the machine shop today and the machinist left the main caps off and had them in a box. i didnt think to ask him which way they faced to the front because i figured they had a arrow on them. the only marks are the numbers and 2 dots on one side. which side should the dots or numbers be in relation to the front of block. thanks paul
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Old 01-08-2021, 11:58 PM   #2
57taskforce
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Re: ly6 main caps

The “wings” on the outer edges of the caps, where the side bolts go, go to the rear if I remember right. I think that puts the arrows to the front, right? I’m not able to look at my LY6 block and caps at the moment or I would verify.
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Old 01-09-2021, 08:51 AM   #3
1958paul
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Re: ly6 main caps

thanks 57 i will have to check my caps again but i didnt see any arrows.
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Old 01-09-2021, 12:04 PM   #4
71cadc10
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Re: ly6 main caps

the front 4 caps, the 'wings' will face to the back.
rear most main cap, wings will face to the front of block.

1 and 5 are the same cap, so go by the numbers.
2,4 are also same so check for the numbers on them. Sometimes the numbers are fairly faint but should be there.
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Old 01-10-2021, 01:12 AM   #5
57taskforce
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Re: ly6 main caps

Awesome, I went to the shop today and checked and got the same results you posted. I took too many engines apart in the last couple weeks and got mixed up, mine don’t have arrows either.
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'72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879
‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206
'98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 35x12.5x20’s
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Old 01-10-2021, 08:50 AM   #6
1958paul
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Re: ly6 main caps

thanks guys im trying to get all the parts together to put this thing back together. first time working on a ls engine
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