Sören

Aftermarket camshaft 472 engine

4 posts in this topic

Looking over my -69 472 engine.

While I'm at it, I have been recomended to upgrade to a modern camshaft for some more Power, torq etc.

Any ideas and suggestions?

Share this post


Link to post
Share on other sites

More power and torque - the 472 doesn't have enough? LOL.

Check out this site: http://forums.500cid.com/ It deals with the big block Cadillac engines.


Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

Share this post


Link to post
Share on other sites

I found 21 cams for the 472 on Summit Racing:

http://www.summitracing.com/search/department/engines-components/section/camshafts-valvetrain/part-type/camshafts/make/cadillac/engine-size/7-7l-472

Manufacturers are Crane, Competition Cams (Comp Cams), and Howard.  You have a selection of flat-tappet hydraulic (like the stock cam), roller tappet, or mechanical lifter.  You will need lifters and springs for a high-lift cam.  If you get anything other than flat tappet, you may be looking at pushrods and rocker arms too.  Applications vary from OEM replacement to circle track dirt racing to drag racing.

 

Here's an application as shown in a video posted on Caddyinfo in 2006:

 


10 second Cadillac, All motor, 511 ci Caddy, full

 

Yes, it's a stock-bodied Cadillac with chromed wheels, and the electric windows and such all work. Yes, it pops a little wheelie at the green. Yes, it turned the quarter in about 10 seconds.


CTS-V_Dashboard.jpg
-- Click Here for CaddyInfo page on "How To" Read Your OBD Codes
-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data
-- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC
Yes, I was Jims_97_ETC before I changed cars.

Share this post


Link to post
Share on other sites

Look at MTS. Here is the link: http://www.500cid.com/cams.htm

I like the MTS# 3 and MTS# 5 cams for a daily driver; it is important to get a cam designed by a Caddy builder as most big cam companies use technology learned from other GM big blocks like the 454 and 455. The Caddy motor was designed by the same guy who designed the Ford 460 and so comes from a different engineering background. I would go with a Crane cam for a Chevy 454, but MIT or the Cad Company for a Cadillac cam.

The following information was copied off of the website linked above:

MTS Designed Cadillac Camshafts

Choosing the proper camshaft for your Cadillac engine is extremely critical as no other component creates as many variables as its cam. Horsepower, torque, economy, and drivability are all governed by your camshaft choice.

Installation of your cam is just as important as it takes the correct parts and information to get it right. Whether you are a novice or an accomplished engine builder, MTS is here to provide the “Cadillac Level of Parts & Service” you need and want. Our dedication and expertise with Cadillac engines comes to you at no extra cost.

From our five tried and true MTS Series cams to our Billet and Roller Cams, or even custom designs, MTS is the best place to come for your Cadillac Performance Cam needs.

CAMSHAFT RECOMMENDATIONS AND CHARACTERISTICS

MTS #3 Series - "The Mileage Cam"


RPM range: Idle to 4,000 / Advertised duration range: 250-255* / Duration @ .050” range: 198-205* / Valve lift range: .470-.480”.

The MTS Mileage Series Cam is designed for maximum fuel economy, while achieving the original stock performance, and works best in low-compression engines. When tuned to run 92-Octane fuel, the record is 22 MPG from a 1976, 500cid in a full-size Sedan Deville. Great bottom-end torque at the expense of top-end performance as power peak is a slight bit earlier than the stock cam. Advances in cam technology has made this the perfect cam for those trying to get Honda-like MPG from a much more powerful Caddy Big-block engine.

MTS #5 Series - "The Performance + Cam"


RPM range: 1,000 - 4,500 / Advertised duration range: 258-266* / Duration @ .050” range: 208-215* / Valve lift range: .495-.510”.

The MTS Performance + Series Cam is an excellent choice to replace any year of the 472/500 stock cams. The Performance + grinds are a technology enhanced version of the “Hottest” cam used by Cadillac in their production engines. The 1973 Cad engines were equipped with a stock cam that had specs in this range. MTS made it better. These cams run more lift and duration than the 1968-72 and 1974-79 original cams. Stock-type idle with improved economy and a solid performance gain over the stock cam. Works excellent with the stock TH400 transmission shift points. Just leave it in drive, smash the gas, and let the tranny shift by itself. Peak cruise RPM for efficiency is 2,200-2,500.

MTS #10 Series - "The Stealth Cam"

RPM range: 1,200 - 4,800 / Advertised duration range: 270-285* / Duration @ .050” range: 220-228* / Valve lift range: .525-.538”.

Now we’re talking! The MTS Stealth Series Cam provides a major boost in mid-range and top end performance. At this level you really have to listen very, very carefully at idle to tell there is a hotter cam in the engine. The MTS Stealth Cam has a smooth and clean idle at about 800 RPM. Slide this cam into your Caddy, add a 2 ½” dual-exhaust system with H pipe connector for an awesome performance package. Your Caddy will sound and act like your daddy’s Caddy with no loss of your Cadillac’s excellent street manners until you romp the gas pedal. Ol’ Mustang-Boy next to you at the stop light won’t believe what just happened to his trampled ego.


This grind also works great with stock TH400 shift points. If this isn’t enough, there is even more on tap if you want to show off your Stealth technology. If you manually shift your trans, this cam seems to pull like a freight train to about 4800 RPM. Perfect towing grind for trucks with 3.73 gears. Raises peak cruise efficiency to 2800-3000 RPM.

MTS #15 Series - "The Thumper Cam"

RPM range: 1,500 - 5,000 / Advertised duration range: 286-295* / Duration @ .050” range: 230-238* / Valve lift range: .520-.540”.

Forget the stealth stuff now. The MTS Thumper Series Cam will have an impressive sounding "Thump" at idle, about 950 RPM. This MTS Cam can produce 500 HP with 600 ft-lbs of torque. Designed primarily for street use, there is more than enough vacuum to run power brakes.

The MTS Thumper Cam has very strong mid-range power, to an even more impressive, huge top-end power band. Rev it up to 5,000 RPM in first gear, shift into second gear, and watch your left front fender yank right up from the torque. MTS created this cam to become an animal and has awesome response to 150-200 hp shot of nitrous oxide.


RPM bands on the MTS Thumper Cam are right at the edge, if not over the boundary of safety, for engines with stock connecting rods. Forged “H” beam connecting rods are preferred. This is also the maximum grind for the MTS S/S Spring Kit. If you want durability, aftermarket rocker assemblies are also necessary at this level. Ported heads are strongly recommended to facilitate the performance. If you’re going to pump up your motor to this horsepower, you really need to make sure all of the components in your build can hold up to and help promote the performance of the cam. The MTS Thumper Cam cams works best with a 3.23 to 3.73 rear gear ratios. Toss in a 2,000 RPM Torque Converter ---- and stand back.

And here is info from the Cad Company:

here is the link: http://www.cad500parts.com/index.htm

Our camshafts are ground to our proprietary specifications by reliable, long-time manufacturers. All grinds are geared toward maximizing performance, both for horsepower and torque, and all are ground on new cam blanks, unless otherwise specified, and are Made in the USA.

The grinds recommended for street applications do not generally require longer pushrods, like regrinds and some brands' "new'" camshafts do (though we do stock over-length pushrods for those who already have one of those). Note that these grinds are not static - the part numbers stay consistent for idle quality and approximate size, but we are constantly updating our cam profiles due to continued testing on our in house dyno, and the frequent introduction of new lobe profiles, technologies, etc.

As you see, we have listed our most popular profiles, but with hundreds of grinds in our database, we are not limited to what you see. Due to the obvious, we do not disclose proprietary specifications. You will be provided a Camshaft Data Sheet with the purchase of a cam kit from us giving you all the spec’s needed to install and degree your camshaft properly, as well as instructions for installation. We will be glad to help you with cam and kit selection when you are ready to purchase. This way, we can assure you of spending your money in the right place, in the first place.
That’s what separates engine builders from phone salesmen.

If you are looking for a specific set of specs, we’d be happy to grind you a custom stick, and recommend the appropriate spring and lifter package.

Note: ‘CTA’ cams are optimized for 8.5:1 engines, while the ‘SS’ series cams are optimized for higher compression ratios such as 10:1. Both are now available in ‘Plus’ versions (new lobe design) for additional power with similar idle and drivability characteristics as the standard version. All cad company camshafts are only available ground on new billets, unless otherwise specified.

We offer springs from $85 / set and lifters from $65 / set.
We also offer blower and turbo versions of most cams - call for applications and pricing.
Kit Pricing is for the Camshaft, as well as appropriate lifters, springs, retainers, locks, and valve stem seals. Cams generally come with a complimentary single-serving-size cam lube as available.
The spring kits included in our cam kits do not generally require machining the heads to install.

Street Cams

Cam Grind

Description

RPM

Price

OE Spec

Standard Replacement Camshaft (cam only) 1600-3600 $230

CTA 120 T-D

Low compression (9.2:1 or less) ‘stock head’ RV cam.
Restoration, 3000 RPM Tractor Pulls, Towing, Direct Drive Airboat. Near stock idle quality, Best all around choice for stock heads. RPM:
1800-4200 $390

SS 120 T-D

High compression (10:1 or more) ‘stock head’ RV cam.
Restoration, 3000 RPM Tractor Pulls, Towing, Direct Drive Airboat. Near stock idle quality, Best all around choice for stock heads. RPM:
1800-4200 $390

CTA 205 T-D

Low compression (9.2:1 or less) ‘ported head’ RV cam.
Restoration, Towing, Mild Hot Rods, Cruisers. Good Idle, Best choice for low RPM engines with ported heads. RPM:
2000-4800 $390

SS 205 T-D

High compression (10:1 or more) ‘ported head’ RV cam.
Restoration, Towing, Mild Hot Rods, Cruisers. Good Idle, Best choice for low RPM engines with ported heads. RPM:
2000-4800 $390

CTA 250 T

Low compression (9.2:1 or less) mild street performance cam.
Hot rods, gear box airboats, etc. Fair Idle, Good choice for truly streetable performance. RPM:
2200-5000 $410

SS 250 T

High compression (10:1 or more) mild street performance cam.
Hot rods, gear box airboats, etc. Fair Idle, Good choice for truly streetable performance. RPM:
2200-5000 $410

CTA 300 T

Low compression (9.2:1 or less) hot-rod street performance cam.
Hot rods, gear box airboats, etc. MSD box recommended.OK Idle, Good choice for truly streetable performance. RPM:
2400-5500 $410

SS 300 T

High compression (10:1 or more) hot-rod street performance cam.
Hot rods, gear box airboats, etc. MSD box recommended. OK Idle, Good choice for truly streetable performance. RPM:
2400-5500 $410

We recommend Cad Company Stage I Shaft rockers for OE and RV cams, and Stage III Shaft rockers for larger hydraulic street cam applications.

Edited by Cody

Click here to visit the main directory for my subforum about my 2002 Eldorado build for autocross racing:

http://caddyinfo.ipbhost.com/index.php?showforum=96

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.