Series 1 & 2 Cylinder Heads,Is there any difference
#1
Series 1 & 2 Cylinder Heads,Is there any difference
Hi Peeps, I am new to your site and was looking for a bit of advise...
I have been given a Series two ERST cylinder head that has been ported and polished, I am led to believe that the series one C/H had larger exhaust ports - hence laggy
Does anybody know if this is the case?
The reason I am asking is because I had removed and dismantled my engine. I had a bottom end rattle and as I have the engine apart would like to gain the best possible performance once reassembled
Thanks for looking
I have been given a Series two ERST cylinder head that has been ported and polished, I am led to believe that the series one C/H had larger exhaust ports - hence laggy
Does anybody know if this is the case?
The reason I am asking is because I had removed and dismantled my engine. I had a bottom end rattle and as I have the engine apart would like to gain the best possible performance once reassembled
Thanks for looking
#3
Inlet?? Exhaust ports you mean!
Im not 100% certain on this myself, i was led to believe only the early S1's had the round exhuast ports, but either way thats the only difference in the head. A ported/polished S2 head will bring it inline with a S1 head anyway
Im not 100% certain on this myself, i was led to believe only the early S1's had the round exhuast ports, but either way thats the only difference in the head. A ported/polished S2 head will bring it inline with a S1 head anyway
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