[Healeys] engine identification

[Richard Collins]

FWIW, my BN7 built inApril 1959, #440, had no overdrive and was a side shift. Not sure when it was changed but I now have OD and top shifter.

Happy Holidays to all!

Regards,
Richard C


On Dec 25, 2018, at 1:16 AM, Bruce Steele <healeybruce at roadrunner.com<mailto:healeybruce at roadrunner.com>> wrote:

I’m perplexed by the references to the “U” in the engine number in the documents which Scott attached.  The first attachment states that 3000 Mk I commenced with engine number 29D-U-H101 and ended with 29D-U-H26212.  The second document states that “U” indicated a center shift gear box.  We know that all Mark I Healeys were side shift; the center shift was not introduced until near the end of the Mark II BN7/BT7 run in November, 1961 at engine number 29E/2246, chassis number BT7/15881 and BN7/16039, per Clausager’s book.  Hence, the 2 documents conflict and my confusion over the statement that the “U” refers to a center shift box.

Clausager states: “However, the engine prefix was later changed, possibly coinciding with the introduction of the six-port engine in 1957.  These engines had the prefix 26D, followed by U on non-overdrive cars, and R (or RU) on overdrive cars, finishing with the letter H for High compression” (Original Austin Healey, Clausager, 1990, pg. 87).

Case in point, my BN7, produced 26-28 September, 1960 is chassis number 12656 and engine number 29D-U-H/22855 (my car was originally a non-OD car), verified by the BMIHT certificate.  The gearbox is a correct side shift unit.  This is in agreement with Clausager’s description.

So, the assertion that U denotes center shift is quite confusing.  Anyone else able to weigh in?

Bruce Steele
Brea, CA
1960 BN7

From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of J. Scott Morris
Sent: Monday, December 24, 2018 8:18 AM
To: mitch <dayton21 at comcast.net<mailto:dayton21 at comcast.net>>; healeys at autox.team.net<mailto:healeys at autox.team.net>
Subject: Re: [Healeys] engine identification

Hello Mitch and Seasons Greetings.
The attached files may help a little but the casting numbers are not related to sequential engine production.
--Scott Morris; Simcoe, Ontario, Canada           - Keep Smiling, Murphy Lives

On Monday, December 24, 2018 7:39 AM, mitch <dayton21 at comcast.net<mailto:dayton21 at comcast.net>> wrote:

Hello

How do you ID an engine block/or head……that does not have an ID tag?
Do the engine block casting numbers mean anything?

Mitchell

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