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Old 06-28-2024, 12:16 PM   #1
aglinks
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LS Engine Mounts in 1966 K10

Does anyone know which mounts to use for a 5.3L LS in a 1966 GMC K10 chassis?

The more dig, I think my truck is a GMC chassis because it has the 305 V6 with factory riveted engine mounts towards the front of the block.
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Old 06-28-2024, 11:13 PM   #2
cwcarpenter98
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Re: LS Engine Mounts in 1966 K10

The frame rails are going to be the same, you just need to get the typical mounts for fitting an LS to the chassis. You will need to remove the GMC V6 frame stands and replace them with whatever the LS needs
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1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive
Overdrive wiring here
1963-ish truck bed trailer - Half-Wit

1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed

1995 Dodge Dakota Sport

"I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson
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Old 06-28-2024, 11:18 PM   #3
aglinks
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Re: LS Engine Mounts in 1966 K10

My truck does not appear to have the same crossmember that the 2WD trucks have. That crossmember looks to be where the pedestals land…
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Old 06-28-2024, 11:33 PM   #4
cwcarpenter98
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Re: LS Engine Mounts in 1966 K10

Oh right, my bad! I completely forgot that the 4wd trucks have different crossmembers. Hopefully someone who has already done an LS swap on a 4wd will chime in
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Christian Carpenter

1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive
Overdrive wiring here
1963-ish truck bed trailer - Half-Wit

1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed

1995 Dodge Dakota Sport

"I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson
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