Cam Question

motoheada1 · 03-26-2023, 12:24 AM

Hey There

I'm currently putting a combo together that is pretty much a "clean out the shop build. I have a cam, but its got me a little worried and i would like everyone opinion. First some info on the combo.

1966 Chevy II 3000lbs +-
10.5x28 slick or a radial of similar size
5.14 gear and a Glide with a 5K converter and Brake

SBC 363ci 4.030 x 3 9/16
13.8 CR
6.0" steel rod
AFR 1103 heads
Ported super Victor intake
HP 950 carb

Ok now the problem. the cam I have laying around is a Crane TR260/4167-2-4. Its actually listed as a circle track cam. Besides that fact, it seems like it may be a little small for the combo.

specs....260/270 @ .050 on a 104LC .625 lift with a 1.5 rocker

What makes it a "circle track" cam, and does that automatically make it bad for drag racing?

Any help or other cam recommendations would be much appreciated.

Chuck

Steve Grady · 04-27-2023, 12:16 PM

Give it a try with a 1.6 or 1.65 ratio rocker if you have the clearance. Decent cam for midrange torque with a P/G.

GTX JOHN · 06-01-2023, 12:36 AM

The circle track cams have a closer lobe center.
Often the same cam lobe.
At least in our small block Mopars!

03-26-2023, 12:24 AM	#1
motoheada1 Junior Member Join Date: Mar 2023 Posts: 8 Likes: 5 Liked 4 Times in 2 Posts	Cam Question Hey There I'm currently putting a combo together that is pretty much a "clean out the shop build. I have a cam, but its got me a little worried and i would like everyone opinion. First some info on the combo. 1966 Chevy II 3000lbs +- 10.5x28 slick or a radial of similar size 5.14 gear and a Glide with a 5K converter and Brake SBC 363ci 4.030 x 3 9/16 13.8 CR 6.0" steel rod AFR 1103 heads Ported super Victor intake HP 950 carb Ok now the problem. the cam I have laying around is a Crane TR260/4167-2-4. Its actually listed as a circle track cam. Besides that fact, it seems like it may be a little small for the combo. specs....260/270 @ .050 on a 104LC .625 lift with a 1.5 rocker What makes it a "circle track" cam, and does that automatically make it bad for drag racing? Any help or other cam recommendations would be much appreciated. Chuck Last edited by motoheada1; 03-26-2023 at 12:40 PM. Reason: missing info

04-27-2023, 12:16 PM	#2
Steve Grady Junior Member Join Date: Apr 2023 Location: Columbus, OH Posts: 53 Likes: 69 Liked 42 Times in 25 Posts	Re: Cam Question Give it a try with a 1.6 or 1.65 ratio rocker if you have the clearance. Decent cam for midrange torque with a P/G.

06-01-2023, 12:36 AM	#3
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,597 Likes: 2,383 Liked 2,127 Times in 612 Posts	Re: Cam Question The circle track cams have a closer lobe center. Often the same cam lobe. At least in our small block Mopars! __________________ John Irving 741 Stock 741 Super Stock