[77 TRASHCAN]

Where can one buy a H-O cam, these days???

[Tom Vaught]

I do not know what Mr Ken Crocie's inventory of HO Racing Camshafts is these days.
He does post on the PY Board occasionally. Do a search and send him a PM.
He did most of the LEG WORK at HO Racing many years ago.

Tom V.

[Tom Vaught]

Originally Posted by Jim Moshier

Tom V. What H-O cam will you be running?

I DECIDED TO TRY A HYDRAULIC LIFTER CAMSHAFT (AFTER ALL OF THESE YEARS RUNNING SOLID LIFTER CAMSHAFTS.)

CAPS ABOVE because this cam will be a big change for me.
(Not in duration but bigger vs the old stocker hydraulic cam stuff).
Last cam I ran was a 255/265 @ .050 solid camshaft.

So Ken or Craig years ago sent me a "engraved" cam with HO-041 HL
on the end to answer your question.

Ken recently recommended a set of Rhoads lifters and I took his advice and ordered a couple of sets of the VMAX PRO Lifters with the Super-Cooling mod.

They came today. Very Quick on the delivery thru the normal mail.

Tom V.

[Stan Weiss]

Tom,
Is it possible when you install and degree in that cam you could check and post 0.050" and 0.200" lifter raise duration?

Stan

[Tom Vaught]

I have the equipment to be able to do that accurately.
It may be a while though Stan.

I can give you the info off the Cam Card info now though:
It should be really accurate as HO had a custom Camshaft Checking Tool.

Part No. HO-041-HL

Grind #s 244H336 and 253H3335
Cam Lift: .336 Intake .3335 Exhaust
.050 Duration 244 / 253
SAE Duration 306/308
(SAE Duration is at .005)
Cam Lift .317 Intake and .321 Exhaust

.050 Timing 10 BTC 54 ABC 61 BBC and 12 ATC
Nominal Timing........57 80 103 38
SAE Timing.............44 82 93 35

Lobe Separation is 113.30
Intake Centerline 112
Rocker Ratio 1.5

Tom V.

[STEELCITYFIREBIRD]

I’d be very interested in obtaining one of these cams, or possibly another HO proprietary grind.
Any sources currently?
Or getting one custom ground .... By someone who did them originally and/or has accurate specs.

.....PM me as needed

Thanks,
Luke

[Tom Vaught]

All you have to do is PM Ken Crocie on the PY Board as he is HO Racing and was one of the 3 main players in that company for many years. No need for me to pm to you that contact info.

Tom V.

[STEELCITYFIREBIRD]

Thanks, I have almost all of their catalogs and publication compilations, I think!
Great stuff. I was ~ 16 when I acquired them.....that was 1980. Set Dreams and aspirations ....yet to be completed yet. Not $....time. But with racing on hold I’m back at my stuff....while still working full time+ even with 🦠 madness.

HL series mimic(Ed) the original OE grinds using 1.5 ratio rockers instead of 1.6.
Correct?

Any chance you’d be willing to disassemble a V PRO TOM?
I’m curious if internal parts differ from a VMAX..groove depth, spacers, available travel, etc.
Can’t really compare bleed down rate unless I supply my shop with both types.

[Tom Vaught]

If they were used lifters, I might, but I am not taking apart any new lifters that are going into my personal engine.

Knowing my luck I would screw something up on the deal.
If you read all of the posts there are others in this thread who have taken apart the lifters.

Sorry. Tom V.

[Stan Weiss]

Originally Posted by Tom Vaught

I have the equipment to be able to do that accurately.
It may be a while though Stan.

I can give you the info off the Cam Card info now though:
It should be really accurate as HO had a custom Camshaft Checking Tool.

Part No. HO-041-HL

Grind #s 244H336 and 253H3335
Cam Lift: .336 Intake .3335 Exhaust
.050 Duration 244 / 253
SAE Duration 306/308
(SAE Duration is at .005)
Cam Lift .317 Intake and .321 Exhaust

.050 Timing 10 BTC 54 ABC 61 BBC and 12 ATC
Nominal Timing........57 80 103 38
SAE Timing.............44 82 93 35

Lobe Separation is 113.30
Intake Centerline 112
Rocker Ratio 1.5

Tom V.

Tom,
Thanks. That is a healthy cam. Are you going to run 1.5:1 or go with the 1.65:1?

Stan

[STEELCITYFIREBIRD]

Originally Posted by Tom Vaught

If they were used lifters, I might, but I am not taking apart any new lifters that are going into my personal engine.

Knowing my luck I would screw something up on the deal.
If you read all of the posts there are others in this thread who have taken apart the lifters.

Sorry. Tom V.

😎, I understand Tom, I am the curious ‘other’ that took them apart ....and imaged the internals!

[Tom Vaught]

Sorry I could not help you out on this one.

I did speak to Ken Crocie and he said that the Crane Cams people should still have info on that HO-041 HL in their info as they made cams for HO Racing.

Tom V.

[77 TRASHCAN]

Originally Posted by Tom Vaught

I have the equipment to be able to do that accurately.
It may be a while though Stan.

I can give you the info off the Cam Card info now though:
It should be really accurate as HO had a custom Camshaft Checking Tool.

Part No. HO-041-HL

Grind #s 244H336 and 253H3335
Cam Lift: .336 Intake .3335 Exhaust
.050 Duration 244 / 253
SAE Duration 306/308
(SAE Duration is at .005)
Cam Lift .317 Intake and .321 Exhaust

.050 Timing 10 BTC 54 ABC 61 BBC and 12 ATC
Nominal Timing........57 80 103 38
SAE Timing.............44 82 93 35

Lobe Separation is 113.30
Intake Centerline 112
Rocker Ratio 1.5

Tom V.

Tom, this is the cam you are planning to use in your 455(?)

[Tom Vaught]

Yes. I ran a 255/265 solid cam @ .050 in a 400 cid engine with good parts:
Forged Crank, 455 SD rads, Ported Heads, and a 4.33 gear in the back and it was not bad driving at all. This 455 cam with the Rhoads lifters should drive even better with less gear and a 5 speed 3.27 1st gear Nash Transmission. That little 400 could run 11.55 at 117 in my convertible. This was back in the mid 1980s. I did a Holley 850 for the engine.

Tom V.

[389]

One sounds like a crankcase full of marbles the other sounds like a crank case full of gravel...

Forget this nonsense and use the 068 cam and be done with it. That motor isn't going to beat any of the new V-6 performance iron anyhow..

[77 TRASHCAN]

Uhhhhhh... Tom's will....

[Tom Vaught]

I know this engine will not make 1000 hp and I also know having been involved with several impressive V-6 Boosted Engines that did make 1000 HP and ran for 24 hours in a detuned state that my little 455 cid street engine is going to be a nice STREET ENGINE.

But I might take it to Eddie's Drive In at some point and open up the VOE mufflers passing thru the place. LOL!
https://www.youtube.com/watch?v=7JNj9sEdPF0

Tom V.

[Tom Vaught]

The engine is a 455 with 87cc E-Heads, forged pistons, GOOD Early Eagle Rods (like the ones Marty P ran in his 1600 HP 400 engine), I will run the Barry Grant Tri-Power with the mechanical Holley carbs, magnetic trigger distributor and potted MSD ignition with rpm limiter. Dual EGO sensors in the HO Racing Tri-Y headers. VOE Mufflers.

Tom V.