[archerytony]

Solid roller in my 468 and thinking solid ft in my other build 467 that I just started on

[Gtowolf]

Originally Posted by Gtowolf

Comp 270 H #51-233-4 with 1.65 Harland sharp roller rockers

In a 68 R.A II 4 speed car

[redhawk44]

In build stage as I write this. Hyd Roller 219/227 @ .515/.530 with 112 Lobe sep angle. Getting kind of excited to get it all together and get her back on the road.

[pontibeast]

SD Performance stump puller with hybrid Crower Solid Rollers.

[Old Tin Indian]

H-O Racing Specialties hydraulic camshaft HC-02 with Johnson Lifters.
Cast 16 heads w/dish pistons, 10.2:1 CR. Really strong street Cam.

[Pontiac Derek]

Is that a 400?
A customer/friend of mine i just built a 408 for had that cam in his 9.00:1 400 with #16 D-ports, iron 4bbl, log manifolds, 2004R trans 2800 stall, 3.42 gears and it was a turd!
His was the HC-02D 232in 242ex .lift is high .400's 112lsa
I am asking because i am planning on putting it in a 10-1 467 with SD CNC 270cfm #17's ported iron intake, 900cfm Q-jet, i will be using 1.72' rockers with it, i figure its good for 470-500hp in the right setup.
If your engine is a 400 with 10.2:1 i can see that also working very well!
That 408 i built is now 9.5:1 with 230cfm #16's, summit 2801 installed at 109ilc
Its throttle response is night and day over his old setup!
Its all about the combo!
Thanks!

Originally Posted by Old Tin Indian

H-O Racing Specialties hydraulic camshaft HC-02 with Johnson Lifters.
Cast 16 heads w/dish pistons, 10.2:1 CR. Really strong street Cam.

[Old Tin Indian]

this is a 455. as i remember some of the specs on this cam are
.465" intake lift, .469" exhaust lift. Duration @ .050"- 231* intake 242* exhaust. 113 1/2* LSA. also running 1 3/4" headers with full exhaust.
11" TCI converter w/turbo 400 and a 3.73:1 12 bolt.
Cast 16 heads with a cast iron 4 bbl intake, both gasket matched.
this car runs like nobody's business. it never misses a beat.
i've been running this combination for the past 28 years with no problems.

[Pontiac Derek]

The specs i have for the HC-02D is-
301-313 advertised
232in 242ex
.470in .486ex
112LSA 108ILC

HO had another 02 cam iirc it was an 02A?
Do you have a cam card by chance?
Sorry for the hi jack i wont post anymore in here.

[69Goat1]

Ultradyne Solid Roller - .254/.262 @ .050, measured .670 lift and 110 ls.

Having a blast with it - supercharged!




Sent from my iPhone using Tapatalk

[Old Tin Indian]

i do have a cam card somewhere. i'd have to really dig for it.
i bought and installed it in the mid-80's. i know it was made by
norris cams. i believe h-o racing specialties used different cam
companies to make their cams to their specs.
i know the former owner of the company is a member of this forum. maybe if this post is read by him, he could chime in about specifications.
i think there were 2 or 3 different hc-02 cams.

[HWYSTR455]

Can try here:

http://www.pontiacpower.org/PontiacCams.htm

Or here:

http://www.wallaceracing.com/cam-specs.htm

If there's still no satisfaction, I can break out the H-O catalogs.

.

[Old Tin Indian]

just looked at a 1978 catalog.
more info in my post #67.
from the links above, i think there are probably way more
h-o specialties cams than we know about. i really don't know.
my cam came as hc-02. no a, b,c,d suffix.
the numbers i posted above are with 1.50:1 rockers.

[HWYSTR455]

I think I have 3 versions of the catalog, last one I think was like 88 or something. Maybe later I will dig them out, now I'm curious.

I ran H-O cams in the 80s in a number of engines/cars, think I tried a lot of available cams back then, H-Os were some of the ones I had success with. One summer I remember swapping cams like 6 or 7 weekends in a row. I had shelves of them, most were junk.

Lunati, Crane, and H-O were the ones I generally ended up sticking with.

Here's one of the Crane Hi-Intensity grinds that I liked to use with 400, as well as the next step up in the same line, would have to dig for that card.


.

[richardk]

My HC-02 cam is:
301-313 Adv. dur.
231-243 @.050
113.5 LSA

I don't remember the lift numbers off the top of my head but I do recall HO called this their "744 hi-lift cam".

IIRC, Ken Crocie said there were several (4?) versions of this cam all with slightly different specs.

I bought this cam back in the late '80s and I'm still using it. (With Rhoads lifters.)

[b-man]

Now that this poll has had time to gather 296 votes it's interesting to note that nearly half of the votes are for the old tried-and-true hydraulic flat-tappet design that was original equipment in 99.999% of all Pontiac V8s.

The hydraulic roller is quickly gaining in popularity, but it is still outnumbered by a margin of 3 to 2 by the old-tech hydraulic flat-tappet.

[gassman_67]

Comp Cams Magnum 292H, Rhodes lifters, 292/292, .501/.501

[chuckies76ta]

That's only because of the cost and people don't want to spend $1000 for
Roller cams

[b-man]

Originally Posted by chuckies76ta

That's only because of the cost and people don't want to spend $1000 for
Roller cams

Along with the added cost, for quite some time questionable reliability and noise issues were keeping a lot of us from pulling the trigger.

Only recently have the problems been solved with most of the hyd roller lifters available.

[gassman_67]

next build,resto mod underway, hydraulic roller with EFI...but what cam? TH400, 3.36 gears...

[sts]

f/thyd