Wayne, that block would be a circa 1972 Spitfire MkIV "Federal" (hence the
"U" in the suffix) engine, low compression and recessed bores. As for the
head, the "unleaded" might mean just that; that it's suitable for unleaded
fuel. I vaguely remember reading somewhere that, by the early or perhaps
mid-1970s, most all Triumph engines were being built to run on leaded,
low-lead or unleaded fuel.
--Andy Mace
*Mrs Irrelevant: Oh, is it a jet?
*Man: Well, no ... It's not so much of a jet, it's more your, er, Triumph
Herald engine with wings.
-- Cut-price Airlines Sketch, Monty Python's Flying Circus (22)
Triumph 10 / Herald / Sports 6 vehicle consultant, The Vintage Triumph
Register: http://www.vtr.org
Check out the North American Triumph Sports 6 (Vitesse 6) and Triumph Herald
Database: http://triumph-herald.us
-----Original Message-----
From: Wayne Lee <wayne@motorcarriage.com>
To: Andrew Mace <zoboherald@aol.com>; triumphs@autox.team.net
Sent: Thu, Apr 22, 2010 11:43 pm
Subject: Re: [TR] Identifying Spitfire Cylinder head # TKC 2748( Now another
Head and Block)
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