1300 vauxhall exhaust valves sizes

[cotty999]

hi im new to this and just joined to try find an answer ..I have a 1300 Vauxhall head with inlet valves 33mm and outlet valves 33mm can anyone help me with what this would be off ??? I no they did a nova sport only 500 made? also a astra ogle only 200 made ?? I need some kind of data to prove they came in the head as standard

[mowgli]

well, you've got something strange there. the std 1200/1300/1400 (the sport is basically a std 1300 with twin carbs) has 33mm inlet & 29 exhaust.

the mpi 1400 & 1600 engines have 38mm inlet & 31mm exhaust, and the big block 8v engines have 42mm inlets & 36.5mm exhaust.

are there any part no's or marks on the valves that would help identify them?


ps. welcome to png.

[cotty999]

no marks on them. they are 7mm stem 33mm head

[Novasport]

The head and valves you have are not standard. Sport is just an SR head and does not have increased valve sizes.
Are you in some kind of race series like autograss which states they must be standard?