Hi,
I think I've worked out that the comp. engines of late 50s/early 60s are based on either the 9E or 11E crankcases and that the 33A/34A/36A designations come about through the particular mix of barrel/head/gear ratios fitted?.
Is this correct?.
The question is where would I start looking for information on identifying, for example, the differences between 9E and 11E bottom ends and between trials and scrambles barrels/pistons/heads?. As always, on the web I find apparently conflicting information e.g. 33A short rod, 34A long rod, 36A long rod on one site but all listed as 66 bore, 73 stroke on another.
Can anyone point me towards decent written information on these things please?.
I think I've worked out that the comp. engines of late 50s/early 60s are based on either the 9E or 11E crankcases and that the 33A/34A/36A designations come about through the particular mix of barrel/head/gear ratios fitted?.
Is this correct?.
The question is where would I start looking for information on identifying, for example, the differences between 9E and 11E bottom ends and between trials and scrambles barrels/pistons/heads?. As always, on the web I find apparently conflicting information e.g. 33A short rod, 34A long rod, 36A long rod on one site but all listed as 66 bore, 73 stroke on another.
Can anyone point me towards decent written information on these things please?.
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