Let's play "pick-a-cam" for a 416 small block...

Posted By: cudadoug

Let's play "pick-a-cam" for a 416 small block... - 02/04/10 08:45 PM

*Need solid flat tappet...no budget for a roller.
*3000# a-body race weight
*4.56 gears
*8" Continental converter - (don't know what it's gonna flash or slippage with the new stroker, but can have it rubbed on as needed)
*4.00" stroke 4.07" bore (416)
*Head flow "should be" around 270 from .550 to .650 lift
*Victor Jr
*Beehive spring good to .600 net lift, 137# at 1.7 installed height, 305# at 1.01

Any ideas??

Posted By: sshemi

Re: Let's play "pick-a-cam" for a 416 small block... - 02/04/10 08:49 PM

What comp ratio?

Posted By: cudadoug

Re: Let's play "pick-a-cam" for a 416 small block... - 02/04/10 09:13 PM

Quote:

What comp ratio?

I KNEW I forgot something. Somewhere around 12.5:1, depending on where the head cc ends up and what head gasket we pick. Have to keep an eye on the piston to head clearance as the slugs will be right at .030 out of the deck

Posted By: sshemi

Re: Let's play "pick-a-cam" for a 416 small block... - 02/04/10 09:23 PM

I think that you cant go wrong with comp cams "904" lifter lobes.
Id say with somewhere 265 dur in and a little more ex on a 108 lsa

Posted By: sshemi

Re: Let's play "pick-a-cam" for a 416 small block... - 02/04/10 09:59 PM

that is with a 950 cfm carb and a gearchange

Posted By: rt66jim

Re: Let's play "pick-a-cam" for a 416 small block... - 02/04/10 10:04 PM

Your combo is very close to mine. My CR is 11.2:1. Cam is a RB 570 lift with a 1.5 rocker(using 1.6's) duration is 270@.050 on a 108 CL. It is installed straight up. My car weighs 3134 w/driver. Still getting the Cal Tracs sorted out. Best so far of 10.5 @ 126.25 1.47 60'. Jim

Posted By: cudadoug

Re: Let's play "pick-a-cam" for a 416 small block... - 02/04/10 10:23 PM

Quote:

Your combo is very close to mine. My CR is 11.2:1. Cam is a RB 570 lift with a 1.5 rocker(using 1.6's) duration is [Email]270@.050[/Email] on a 108 CL. It is installed straight up. My car weighs 3134 w/driver. Still getting the Cal Tracs sorted out. Best so far of 10.5 @ 126.25 1.47 60'. Jim

Yea, sounds similar. I'm considering Bullet that is 275 @ .050 and .585 on a 108 CL.

What heads are you running and what gear if you don't mind??

Posted By: rt66jim

Re: Let's play "pick-a-cam" for a 416 small block... - 02/04/10 10:31 PM

W2's ported by RyanJ. 4.56 Dana, Victor W2, TTI 1 3/4" and a PF 950HP on gas. Going to E85 this year. Jim