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View Full Version : Big port or small port cams



bazz84
20th September 2014, 05:29 PM
Sorry wrong section. Should have been in questions


Realised that the 7rib bigport I bought had smallport cam gears. Was thinking of checking if the cams were small or bigport (might explain why this engine feels slower than the tired leaky one it replaced). Any markings I should see to differentiate the 2. Looking on the Internet there seems to be a "5" stamped on intake and a "7" on exhaust. Could anyone confirm this. Much appreciated

bazz84
20th September 2014, 06:09 PM
Just took of the rocker cover off the old engine. Read 12 and 9 on exhaust

bazz84
20th September 2014, 06:58 PM
Ok. Turns out the red top bigports had the same cams as the smallports :(