I am looking for a camshaft to suit my new build. I am building a 340 stroker (416) and have a forged rotating assembly and plenty of other parts ready to go. The car will be a weekend cruiser and probably never see the drag strip. I still want plenty of grunt on tap and a bit of lumpy cam sound, but not a pig that won’t idle and is a pain to warm up.
I would like any feedback to what has been recommended by Comp as I can’t afford to do it twice...
So here is the relevant info – 4” stroke, Edelbrock Performer heads (compression should come out to about 10.5:1), Comp roller lifters, Harland Sharp rockers, TTI headers & 3” system, MP 6 pack manifold & Holley 6 pack carbs (Small Block for now), TKO manual box, 3.23 rear end.
I asked Comp to recommend a cam based on their questionnaire and got this:
“I recommend going with cam 20-812-9. This cam will have the choppy idle you are wanting and will give you strong low end power in your setup. The cam has duration @ .050 of 230 236 with valve lift of .577 .573. The cam will run up to about 5500 rpm with your stroked setup and start to pull about 1800 rpm or so. Possibly a little sooner. This will also have good street manners and run real strong for you”.
Cam specs at -
http://www.compcams.com/Company/CC/cam-specs/Details.aspx?csid=647&sb=2I have read some of the (numerous) threads on cam choice on the forums and just when I think you have my head around it, I read another conflicting view.
What alarms me most about this suggestion is the cam is to suit a 273-360 c.i. engine. Mine will be 416 - so I’ve got alarm bells ringing immediately, let alone considering any other lift and duration specs.
Also the stated power range is 2200-6000 rpm which is way above where I would want the power to start and end…
Is this a suitable cam for my application and use? Any feedback welcome.
