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Old 05-12-2012, 09:47 PM   #1
Hotrod 4x4
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'68 GMC K20 327cid 350hp??

I have a 68 GMC K20 with the 327 4barrel and 4spd trans. What was the HP on these motors????
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Old 05-14-2012, 12:51 AM   #2
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Re: '68 GMC K20 327cid 350hp??

If it is the original motor probably around 180 - the higher performance motors were in the cars.
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Old 05-14-2012, 06:46 AM   #3
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Re: '68 GMC K20 327cid 350hp??

Thanks dan42, All the research i have been doing is showing that it maybe a 350hp 327. Anyone else have anything????
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Old 05-14-2012, 07:04 AM   #4
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Re: '68 GMC K20 327cid 350hp??

not at all original// you've got a correct answer

just keep on dreamin if you get an answer you are disappointed with
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Old 05-14-2012, 08:53 AM   #5
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Re: '68 GMC K20 327cid 350hp??

Well im not really that worried about what it is. It just runs great and has a ton of power.
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Old 05-14-2012, 10:02 AM   #6
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Re: '68 GMC K20 327cid 350hp??

Post up the block casting number, date code, and front pad numbers and we can tell you what the engine was born as.
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Old 05-14-2012, 10:48 AM   #7
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Re: '68 GMC K20 327cid 350hp??

None of the trucks came with any HP numbers like that.

You'll need to throw some parts at it to get those kind of numbers.

It might run good and have some power. The PO could have put an aftermarket cam and stuff in it. But I doubt it would be pullin' those numbers with just a cam swap as well.

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Old 05-14-2012, 12:49 PM   #8
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Re: '68 GMC K20 327cid 350hp??

Ill get the numbers some time and post them. Im sure its not anything great. Im just glad it runs good with low miles..
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