Hey i was wondering if there were any good sited to order larger cams from if so what spec would be good for a stock 620. i was also wondering what other performance mods i could start running???
remove 620 motor, install 800 or 1000 or 1100 motor
If your set on upgrading the cams, 695 or 800 cams are larger and should bolt in. The 620 has the smaller 750 valves so upgrading to the full heads off the 695, or 800 may be a better idea. Anyway you go a custom map will have to be made adding to the cost.
695 and 800 run a 88mm bore, 620 has a 80mm bore, so those heads won't bolt on.
no but the 750 uses the same stroke but different bore. you could throw on 750 cylinder, pistons and heads.