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AC Ace 289 Mark II (1965-1969)
Porsche 914 (1
we recommend that the early BSF studs are changed to ½" UNF or 7/16" UNF
Jack fits easily in the center
MGA MGB - Aluminum Crossflow Cylinder Head choke AC Ace 289 Mark IIFits all MGA and MGB motors. (Assembled Head also shown) Based on the famous 1960's cast iron Derrington crossflow heads, Classic Car Performance takes these brand new 9lb powerhouses to a whole new level of performance. Horsepower increases of 20% to 45% based on engine modifications. (Our modified 1970 MGB Crossflow shop car returned 145hp at the wheels) 50% weight savings over your old, heavy cast iron head. Improved heat dissipation for a cooler