Brought to you in part by:

.

Shop Eastwood for your Auto Restoration Needs!


  Mustangsandmore Forums
  Ford Racing
  Comp Cams Hydraulic Roller Cams

Post New Topic  Post A Reply
profile | register | preferences | faq | search

UBBFriend: Email This Page to Someone! next newest topic | next oldest topic
Author Topic:   Comp Cams Hydraulic Roller Cams
Daniel Jones
Gearhead

Posts: 495
From: St. Louis, MO
Registered: Aug 99

posted 11-07-2002 07:50 PM     Click Here to See the Profile for Daniel Jones   Click Here to Email Daniel Jones     Edit/Delete Message   Reply w/Quote
I'm considering a hydraulic roller cam for my Pantera's 408C stroker.
I don't plan to turn that engine over 6500 RPM and I'd rather not have to
deal with lash since I may be installing a cross-ram independent runner
EFI in the future. That set-up may require removing the throttle bodies
to get at the valve covers which would make it a pain to set lash.

I noticed the Comp Cams retro-fit hydraulic rollers do not require the
use of a bronze (or steel) distributor gear. I called the Comp tech line
but the guy did not really have an answer when I asked how they can get
away with with running an iron gear. Does anyone know what Comp does?
Do they press an iron gear on a steel cam core or do they use a different
material or heat treat process? Does it really work?

A friend runs a custom Comp hydraulic roller (248 degrees @ 0.050", 0.600"
lift with 110LSA, 190 lbs seat pressure) in a 418W stroker in a Cobra
replica. On the dyno, that engine made 565 HP at 5700 RPM. He didn't
know about the cam gear but is checking with his engine builder. The cam
size is similar to what I'm considering for the Pantera, though the lobe
centers may be tighter if I go IR EFI.

Thanks,
Dan Jones

IP: Logged

Moneymaker
Administrator

Posts: 19704
From: Lyons, IL, USA
Registered: May 99

posted 11-07-2002 07:55 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
You need a steel gear with all of Comp's -8 cams Dan. Bronze with the -9's.

------------------
Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"

IP: Logged

Daniel Jones
Gearhead

Posts: 495
From: St. Louis, MO
Registered: Aug 99

posted 11-07-2002 08:38 PM     Click Here to See the Profile for Daniel Jones   Click Here to Email Daniel Jones     Edit/Delete Message   Reply w/Quote
> You need a steel gear with all of Comp's -8 cams Dan. Bronze with the -9's.

This would be a -8. For a Cleveland, the custom cam core p/n be 32-000-8.
The biggest catalog grind for a Cleveland is the 304HR (244 @ 0.050", 0.612",
110 LSA, p/n 32-651-8). How do you think that would work in a 408C stroker
with A3 heads? Eric's running 35-000-8 in his 418W with cam specs fairly
similar to the 304HR but the Cobra is much lighter than the Pantera and the
AFR-205's have smaller ports than the A3's. Are the -8 cam cores ground on
8620 steel?

The Comp flunkie said to use an iron gear but since he couldn't back it
up with a reason, I was suspicious. I also spoke with a guy running a 284HR
and he said Comp told him the stock iron gear is okay to run. Sounds like
he got the same flunkie as I did. Seems a lot of them don't know the
difference between steel and iron.

On page 219, the Comp Cams catalog states "Street Roller Cam Cores (Hydraulic
or Solid Roller) - special material does not require use of bronze distributor
gear". I searched the rest of the catalog but I couldn't find it anywhere if
that meant cast iron or steel. As far as I know, Crane is the only company
that makes a steel distributor gear for a 351C (same gear as a 429/460).
Does anyone else make a steel gear for Clevelands?

Thanks Much,
Dan Jones

IP: Logged

kid vishus
Gearhead

Posts: 4538
From: middle of NC
Registered: Oct 2000

posted 11-07-2002 09:05 PM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Daniel Jones:
[BThe Comp flunkie ...[/B]


Aint that the truth. I called them several times yrs ago trying to find the difference in their solid roller lifters for a 351c and the roller lifters for the rest of the small Fords (they list them seperately in the block). He told me (after I was put on hold for over 10 minutes while he went and asked someone else since he didnt know) that the cleveland had a taller deck height and therefore the oiling hole needed to be in a different place. Taller deck height? I asked him how that could be since the cleveland was a 9.2 deck, and a windsor was a 9.5 deck. His answer, "I dont know."

I have since found out, but decided not to buy their solid roller lifters.

IP: Logged

bluestreek
Gearhead

Posts: 1289
From: Athens,GA
Registered: Jul 2001

posted 11-07-2002 09:39 PM     Click Here to See the Profile for bluestreek   Click Here to Email bluestreek     Edit/Delete Message   Reply w/Quote
I run my Comp XR solid roller with a stock iron gear. It has several hours of run time and I haven't had a problem yet. I was told that these cams are engineered the same as their high performance flat-tappet solid cam cores and they do not require a special gear. I hope I'm right.

------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank and girdle, 5.4 H-beams, Forged slugs, ported TFS alum. heads, ported Stealth 8020 intake, CompCams Xtreme Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi, BFG Drag radials..

IP: Logged

67coupe
Gearhead

Posts: 384
From: dallas NC usa
Registered: Nov 2000

posted 11-08-2002 08:53 AM     Click Here to See the Profile for 67coupe   Click Here to Email 67coupe     Edit/Delete Message   Reply w/Quote
Hey Kid i was curious bout the lifters too where and what did u find out i noticed that awile back just never checked into it thanks.

------------------
Josh
67 coupe with 351c
8.41 in the 1/8
1.90 60'
at 82.03 mph
94 Explorer
30 model A currently rustbucket
in process 67 convt with efi 5.0 and t5

IP: Logged

kid vishus
Gearhead

Posts: 4538
From: middle of NC
Registered: Oct 2000

posted 11-08-2002 09:20 AM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
I asked one of Comp's reps at the PRI in Indy that year. I figured the guys they send to that show were more knowledgable than their phone tech support idiots.

The oil metering hole is in a different place due to the oil galley is in a different location on the cleveland. If you were to try and use thier other sbf lifters in a cleveland, it would pump all the oil to the top of the heads right away.

I decided it was alot easier to stick with the Lunati roller lifters I already had.

IP: Logged

Just Strokin
Gearhead

Posts: 754
From: Tuscaloosa, Alabama
Registered: Dec 2001

posted 11-08-2002 09:42 AM     Click Here to See the Profile for Just Strokin   Click Here to Email Just Strokin     Edit/Delete Message   Reply w/Quote
Kid

Have you ever ran the SBF lifters with the restrictor kit? Wonder if the Moroso kit would solve the oil problem using the SBF lifters.

IP: Logged

Dave_C
Gearhead

Posts: 744
From: Gadsden, Al
Registered: Aug 99

posted 11-08-2002 10:39 AM     Click Here to See the Profile for Dave_C   Click Here to Email Dave_C     Edit/Delete Message   Reply w/Quote
Just an FYI on the Comp Cams roller lifters.

The 351C lifters use the same lifter body as the 429-460, but they use the link bars for the 289-351W. That's why they list a different part #. The lifters are all the same .874 diameter, the oiling holes are different and the link bars are a different length.

The 289-351W uses 838-1 lifter bodies and 838-L link bars.

The 429-460 uses 836-1 bodies and 836-L link bars.

The 351C-351M and 400 use 836-1 bodies with the 838-L link bars.

I like their lifters. Mainly because they are rebuildable after a season or two. Many lifters are the roller axle pressed or peened in place and that can't be rebuilt. Comp will rebuild theirs with new wheels, bearings and axles for less than 1/2 the cost of new lifters.

Later,
David Cole

IP: Logged

kid vishus
Gearhead

Posts: 4538
From: middle of NC
Registered: Oct 2000

posted 11-08-2002 10:48 AM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
I run the Moroso restrictor kit. They claimed the oiling hole for the other lifters was right in the oiling galley. I do know of one guy that tried to use the sbf lifters in his cleveland, and it had restrictors, and it still pumped all the oil to the top of the heads.

I like my Lunati's. Every 2 years I send them back in and get them rebuilt. When I bought my Lunatis, they were over $330 new, I can get them rebuilt (new bearings, wheels, axles, and the bodies get mic'ed for size) for $125 or so.

I wont run the Comps. They wont work with my 3/8" pushrods.

IP: Logged

Daniel Jones
Gearhead

Posts: 495
From: St. Louis, MO
Registered: Aug 99

posted 11-08-2002 01:54 PM     Click Here to See the Profile for Daniel Jones   Click Here to Email Daniel Jones     Edit/Delete Message   Reply w/Quote
Called Comp Cams again about the hydraulic roller distributor gear issue
and got a hold of a guy (Dennis) that sounded like he knew what he was
talking about. He said the -8 street roller cam cores are austempered
ductile iron. The surface treatment hardens the cam lobes so they can
run a roller lifter. He also said either a cast iron or cast steel
distributor gear is compatible with the -8 cores to run with the cam.
Not compatible are machined steel gears like the Crane 351C part which
is made of 8620 steel, the same as a solid roller cam core. He said the
Ford Motorsport steel gears are a cast steel and would work fine but
Ford doesn't make one for a 351C.

Dan Jones

IP: Logged

All times are ET (US)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply
Hop to:

Contact Us | Mustangsandmore Front Page

Copyright 2003, Steve LaRiviere. All Rights Reserved.


Ultimate Bulletin Board 5.47d

Amazon Honor System Click Here to Pay Learn More

[Build a free Mustangsandmore.ws Home Page!]

[About M&M][Acronyms][Calendar][Chat][Classifieds] [Members' Pics] [M&M Mug Shots]

[ Mustangsandmore.com Bookstore] [Mustangsandmore.com T-Shirts][Tech Articles]