| ----- Original Message ----- 
From: Kevin Rhodes <krhodes1@maine.rr.com>
> Did the exhaust manifolds change as well? I got a manifold from a lister 
> last year to replace my crappy 4-1 header, it had the combined center 
> exhaust port. Are they all like that or did Triumph update them eventually? 
All of the Standard-Triumph SC engines had 4 exhaust ports. Engines up to 
1147cc had 2 inlet ports, 1296 and 1493cc engines had 4 inlet ports. The 
combined centre exhaust port is a feature of the BMC A-series engines - maybe 
your header is for one of those?
    Cheers,
        Bill.
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