That's the only combustion chamber shape I've seen and is the one shown in the magazine articles of the day. It was a revision to the MKII design but I don't know if there were any later revisions. Also, it's not uncommon for heads to have their chambers altered for domed pistons.
Dan Jones
> 1. Have to run the TR8 Federal injection system. It is the flat top plenum
> (to clear the hood).
> 2. I could probably get away with the twin plenum from the SD1 Vitesse, no
> one would know, but it would be cheating.
Both the twin plenum Vitesse and single plenum Range Rover intake...
> We recently got a stock Triumph 3.5L V8 upper and lower manifold and it is
> much better with respect to the ports. We suspect it would make more power
> too.
Are you restricted to the TR8 "federal" injection manifolds or can you use
the Range Rover set-up? Can you run parts raced by...
Gurney Weslake heads
> After some surfing around the Net, I found this on the GW heads. Sounds like
> a completely stock, unported pair of heads.
Those flow numbers you quoted were from me. They were indeed from a completely
stock set of heads, as purchased from Gurney. I also believe...