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1966 HP Engine Code

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Old 05-06-2010, 05:17 PM
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CALPILOT
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Default 1966 HP Engine Code

The HP engine code for 1966 denotes L79 with AC, PS and 4 speed.

Since there is no code for an L79 with AC, 4 speed, and WITHOUT PS...can one assume that all cars built with AC also had PS? Or did the AC (C60) option just get installed onto an HT engine if PS was not an option?

For reference, here are the codes:

HT 327-350 Hi-LiftCam & 4-Speed
HD 327-350 Hi-Lift Cam, K19 & 4-Speed
HP 327-350 Hi-Lift Cam, A/C, P/S & 4-Speed
KH 327-350 Hi-Lift Cam, K19, A/C, P/S, 4-Speed

There would seem to be a few more combinations than those listed above, but I can't seem to find a good explanation of how the coding system worked.

Thanks
Old 05-06-2010, 07:12 PM
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1966 and 1967 L-79 with 4-speed and factory air only (no PS) was coded as HT.

I have one of these cars, and have talked to many others with the same configuration and engine stamping.

Larry
Old 05-07-2010, 01:23 PM
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JohnZ
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There is no Engineering reason for a '66 or '67 with either A/C or power steering to have a unique engine assembly, as neither option has any affect on the basic engine as-shipped. It mattered in '64-'65 due to the relocation of the alternator to the LH side with A/C, but not in '66-'67 when ALL alternators were LH-mounted.

We may never know why they assigned the "HP" suffix, but known-original cars with A/C and/or power steering have been observed with "HT" suffixes. This debate has gone on for years.
Old 05-07-2010, 04:20 PM
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Thanks for the replies.

And John, thanks for the email as well!
Old 06-21-2019, 11:12 AM
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emdoller
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Originally Posted by JohnZ
There is no Engineering reason for a '66 or '67 with either A/C or power steering to have a unique engine assembly, as neither option has any affect on the basic engine as-shipped. It mattered in '64-'65 due to the relocation of the alternator to the LH side with A/C, but not in '66-'67 when ALL alternators were LH-mounted.

We may never know why they assigned the "HP" suffix, but known-original cars with A/C and/or power steering have been observed with "HT" suffixes. This debate has gone on for years.
You learn something every day. Thanks John. I thought if a 67 had both AC and PS, it had to have the HP suffix.

Does anyone have an original tank sticker that shows this? Would love to see it.

Ed
Old 06-21-2019, 11:25 AM
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mikelj
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My '67 L79 with A/C and P/S has an HP suffix, original engine, all shown on tank sticker.
Old 06-21-2019, 11:49 AM
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emdoller
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Originally Posted by mikelj
My '67 L79 with A/C and P/S has an HP suffix, original engine, all shown on tank sticker.
Mine too. I'd love to see HT with both AC and PS.

Ed
Old 06-21-2019, 01:10 PM
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Originally Posted by emdoller
Mine too. I'd love to see HT with both AC and PS.

Ed
I doubt you ever will on a verified, documented one.
Old 06-21-2019, 01:13 PM
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Originally Posted by mikelj
I doubt you ever will on a verified, documented one.
I agree but am open to anyone who has one. For now, I'll put this one up there with the BB hood on SB cars
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Old 06-21-2019, 01:56 PM
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Originally Posted by emdoller
I agree but am open to anyone who has one. For now, I'll put this one up there with the BB hood on SB cars
Done at the dealership during delivery or in the new owner's back yard.

Larry

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