What helicoil to use ?
#1
Staging Lane
Thread Starter
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Putting back together an LS2 and one of the bolts that mounts the oil pump to the block has stripped . Do I drill and tap for next size up or do I stick a helicoil in there and if so , what size ??
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447C5 (07-09-2024)
#5
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Definitely the Heli-Coil. I doubt you could get a larger bolt through the OP anyway without causing even more problems.
Prob 10mm std thread (1.5mm I think). No problem though, just take one of those bolts with you when you go the store to pick up the kit, to make sure.
Prob 10mm std thread (1.5mm I think). No problem though, just take one of those bolts with you when you go the store to pick up the kit, to make sure.
#6
ModSquad
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Jimbo1367 (07-10-2024)
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#8
TECH Addict
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Beat me to it, Scott! SO MANY PEOPLE identify bolt sizes by the hex size, i.e. the size socket it takes. That is flat WRONG. I will also add that in my many years of installing these things, the best and hardest to screw up are the genuine Heli-Coil brand kits. There are many slightly cheaper brands, and they work pretty good. But I've had the best luck with the real Heli-Coil....
#9
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And Scott for the WIN. I was hoping Scott would chime in when I was reading the OP.
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Che70velle (07-10-2024)
#10
ModSquad
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Appreciate it. Helicoils work well on fasteners that don’t require a lot of torque, and it’s SUPER easy to open up the hole to the correct size for the insert on aluminum pieces (block in this case) with the included tap.
#12
TECH Senior Member