What Cam are you using in your Caddy 500? Are those open or closed chambered heads? What size valves and compression are you running? Thanks for the help.

9.2:1 Compression 513 CID
120 cc heads
Holly 4011 800 cfm Spread bore
Stage 3 Cad Company Aluminum Intake
Over size Stainless valves (2.120 Intake/1.780 Exhaust)
CMD Stage 4 Shaft Rocker assembly 1.6:1
Over length 3/8 inch Chro-moly push rods
Hedman 1 3/4" Big Block Chevy Headers

300 S/S TD Super Street Camshaft with new hydraulic tappets.
Cam specs: Lobe Centers - 110 Deg., Intake opens at 10 Deg BTDC at .050" Lifter Rise, Valve Lift: .540/.540" Advertised Duration - 288 Deg/288 Deg (560 lift with new rockers)

CMD Billet True Roller Timing set
Keith Black Hyperutectic Pistons W/ custom valve relief's and spirolocks for 4.350" Bore
Childs & Albert's Moly rings
Forged steel Connecting Rods
ARP Rod bolts
CMD Steel Billet Flexplate with ARP Bolts
CMD High Volume High Pressure Oil Pump
CMD High Pressure Fuel Pump
PAW .010/.010 Crank Shaft 4.304 stroke
:usa:

Sounds like a fun motor! Any idea what kind of numbers it puts out?

Hey, 'got my curiousity peaked... What did it take to put Chevy BB headers on a Caddy?:confused:

Originally posted by bgreen
9.2:1 Compression 513 CID
120 cc heads
Holly 4011 800 cfm Spread bore
Stage 3 Cad Company Aluminum Intake
Over size Stainless valves (2.120 Intake/1.780 Exhaust)
CMD Stage 4 Shaft Rocker assembly 1.6:1
Over length 3/8 inch Chro-moly push rods
Hedman 1 3/4" Big Block Chevy Headers

300 S/S TD Super Street Camshaft with new hydraulic tappets.
Cam specs: Lobe Centers - 110 Deg., Intake opens at 10 Deg BTDC at .050" Lifter Rise, Valve Lift: .540/.540" Advertised Duration - 288 Deg/288 Deg (560 lift with new rockers)

CMD Billet True Roller Timing set
Keith Black Hyperutectic Pistons W/ custom valve relief's and spirolocks for 4.350" Bore
Childs & Albert's Moly rings
Forged steel Connecting Rods
ARP Rod bolts
CMD Steel Billet Flexplate with ARP Bolts
CMD High Volume High Pressure Oil Pump
CMD High Pressure Fuel Pump
PAW .010/.010 Crank Shaft 4.304 stroke
:usa:

Thanks for the info. If you had to do it again would you put the same Cam in it?

If you had to do it again would you put the same Cam in it?

Yes and no...

If I had the intention of building another "occasional use" motor, then yes I would use the same cam again. That cam cost me alot of money when you consider that running it means you need to upgrade valve sizes, port the heads, and run some type of shaft mounted rocker arms to support the heavy springs.

I have plans of building another 513 caddy, but this one will be more budget minded and for a tow rig. In this application I would not use the same cam.

What did it take to put Chevy BB headers on a Caddy?

You can buy headder flange kits from CMD or MTS or Rad Cad. Next time I will make my own.:p Headders and all. :D

Any idea what kind of numbers it puts out?
500 hp and 600 Lbs according to my supplier (CMD/Cad Company)

For those who are concerned, I would recommend using Maximum Torque Specialties rather than CMD.

Thanks for the info. I am trying to gather some info on what cam would be best for me and to give the cam grinder the info on what seems to be working. The only Caddies that we have built is for all out racing. I have not built a Caddy for street use. Look at my web page and you can see some of our Caddy stuff that we have built.

http://www.rustbucket.rockcrawler.com/photo.html