Hi all, Can anyone suggest what the tappet gap should be on my 1776 - I set my 1600 that's in at the mo at 6 thou (.15mm) but not sure if the 1776 I am about to install should be set any different. here's the spec in case that makes any difference (if it's different for inlet & exhaust, how can I tell which is which (I am an engine numpty - didn't build the 1776!).. 1776 cc Full flowed case with remote filter and bracket Counter weight crank Kennedy stage 1 clutch Lightened flywheel, 8 dowled Engle 120 cam, twin thrust bearing Std matched con rods Ballanced bottom end Chrome moly pushrods High ratio rockers with swivel feet Bolt up rocker bars 040 Twin port heads, 3 angle valve seats and mildly ported Tinware Doghouse 36hp fanshroud ( no heater outlets) Alternator Sdva distributor ( brand spanking new) Remote oil breather box Dell 40 carbs thanks
Because of your pushrods you can set the gaps to a loose zero. The gap will increase slightly as it warms up.
It's the pushrods, nothing to do with the rest of the engine. And it's not automatic! It's just a different setting to reflect the comparative lack of expansion of the pushrods.