C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Head bolt location

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Old Oct 16, 2015 | 01:13 PM
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Default Head bolt location

This is on a LT1, 95

Stupid me didn't pay attention to the locations on the head for the longest bolts. Bought a set of new ARP bolts for the new heads.

Do the longest bolts go in the two outside edges or across the top of the heads?


thanks
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Old Oct 16, 2015 | 03:06 PM
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Yes, the longest bolts go on the outer edge, the medium ones going inside the valvetrain area, and the short ones go on the outside under the exhaust ports.
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Old Oct 16, 2015 | 03:06 PM
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Just put my heads on my 95 LT1 last week. Short on the bottom. There will be four medium length bolts in the box. These are for each end of the head where the oil drains back. All the other bolts will be the same length and go between the rocker studs and the top of the head. My ARP bolts were ARP No. 134-3701 112 point. I also bought the ARP thread sealant.
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Old Oct 16, 2015 | 04:15 PM
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You guys are saying two different things..haha
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Old Oct 16, 2015 | 04:26 PM
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Three size bolts in your box. Short go to the bottom of the head below the exhaust manifold. Medium bolts under the valve cover at each end of the block (2 per head) in the section that drains the oil back to the pan. The long bolts under the valve cover between the rocker arm studs and above.


Short bolts 16, 12, 8, 4, 3, 7 ,11 and 15.
Medium bolts 17 and 14.
Long bolts 13, 9, 5, 1, 2, 6, 10, 14
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Old Oct 16, 2015 | 05:56 PM
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That's right.. Thanks
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Old Oct 16, 2015 | 06:16 PM
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Thread sealant on the threads. The washers have bevel on inside hole...widest section toward the head. Use assembly lube between washer and cylinder head and washer and bolt head.
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