Quote:
Originally Posted by Bossxr8
Port clean up is probably a better description. Some heads obviously needed more work to the casting than others.
If only they had fitted some proper heads to them, rather than fitting higher flowing stuff on intake and exhaust, only for it to breathe through a straw using tiny factory ports.
They should have used the bigger alloy heads Ford Racing had at the time. GT40X heads I think they were? Or was it GT40Y?
Maybe not so much on the 220, but at least on the 250kw engines.
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The T1 and T2 TS50 with the 220 kW version actually had those alloy heads. When the AU II XR8 went to 220 kW, they switched back to iron heads, T-Series followed suit.
https://www.tseriesclub.org/technical-spec/
5.0-litre OHV V8 “Synergy 5000”
Cast Iron GT40P on the TE and TL
Aluminum SVO Y303 on the TS