rpm range difference when using a cam 460 vs 512

i bought a cam and lifter set. solid flat tappet.256/266 @.050 and 589/615 lift 108 lobe sep. says 6500 rpm range with a 429/460. what rpm range can i expect the 512 motor to turn.

garys gt wrote:i bought a cam and lifter set. solid flat tappet.256/266 @.050 and 589/615 lift 108 lobe sep. says 6500 rpm range with a 429/460. what rpm range can i expect the 512 motor to turn.

Probably around 5,900 to 6,100 RPM.

rmcomprandy wrote:

garys gt wrote:i bought a cam and lifter set. solid flat tappet.256/266 @.050 and 589/615 lift 108 lobe sep. says 6500 rpm range with a 429/460. what rpm range can i expect the 512 motor to turn.

Probably around 5,900 to 6,100 RPM.

Ok thanks.

Because the piston speed is higher in the greater stroke engine and that cams RPM window was probably rated against a 429 cu in engine versus the 460 I would wager the power fall off is more likly down around 5200 rpm all else equal.

kim wrote:Because the piston speed is higher in the greater stroke engine and that cams RPM window was probably rated against a 429 cu in engine versus the 460  I would wager the power fall off is more likly down around 5200 rpm all else equal.  

wow that's alot lower. Hope it doesn't drop that much.

That cam is a moderate small block cam. Thats damn near stock tame on a 460.. and ford never expected the thing to rev above 4800 rpm.

I ran that same cam in a 466 with A429 heads and it pulled well to about 6200. Cam was 2 adv. and car still ran a best of 9.72 with 2930lb car and driver. If you bought that cam off a member here it may be my old cam. Lol

kim wrote:That cam is a moderate small block cam.  Thats damn near stock tame on a 460..  and ford never expected the thing to rev above 4800 rpm.

That cam isn't anywhere near stock tame in a 460. I have a customer who ran that same cam for years in a 460 in a mud racer turning 6500rpm using a DOVE head. I'd say it will go a little over 6000rpm in a 521 no problem.