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I guess some of you think you are entitled to the specs. I like the one answer here, just buy one and copy it. Must be the "in" thing to do, the Chinese do it.
Why not buy one and try it and if you think you can do better start having a grinder grind you some up to test an see if you can come up with a better mouse trap. Of coarse this will have to be done within certain design perimeters. If you do after years of trying please have it mapped and share it with everyone.
Don't worry about the costs involved or time you had put into it as all the grateful enthusiasts will send you more than enough money to make it worth it.

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I am sure someone has Bob's email address, why not drop him a line and get some of your answers from the source. Just because no one on here has a direct comparison or dyno results does not mean the information is not available or top secret.

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I am sure someone has Bob's email address, why not drop him a line and get some of your answers from the source. Just because no one on here has a direct comparison or dyno results does not mean the information is not available or top secret.

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I already emailed him and got a reply. This is a direct copy from his email.

"It would be hard to give you a number for the power increase, but every time we have used my cams over stock ones, everyone has been pleased"

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Not much of an answer.

I would "assume" that most everyone is pleased with the power increase over stock ones regardless of who's cam it is.

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I have on the shelf an old unused 383/440 Magnum cam package and a Comp XE268H, but I would had liked to test something not so typical cam choice as those are. I always target at a rebuild for a little better performance

I am having for the 383 KB 400 pistons 10:1 CR, othervise the engine is having stock parts, manifolds, ignition, carb, etc. That Challenger has A/C and PDB, so I would need some vacuum for the brake booster and some torque on the idle for smoothly running the A/C compressor.

Without any numbers, hp or torque, or other clear facts like 1/4 ET's, it's a little bit difficult to evaluate, is the cam worth the extra money spent.

If Bob want's to keep the specs of his cam as a secret, let him do it. I am not claiming about it. Don't misunderstand. I just would like to know, how well those cams perform compared to a pure stock cam.

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I have on the shelf an old unused 383/440 Magnum cam package and a Comp XE268H, but I would had liked to test something not so typical cam choice as those are. I always target at a rebuild for a little better performance

I am having for the 383 KB 400 pistons 10:1 CR, othervise the engine is having stock parts, manifolds, ignition, carb, etc. That Challenger has A/C and PDB, so I would need some vacuum for the brake booster and some torque on the idle for smoothly running the A/C compressor.

Without any numbers, hp or torque, or other clear facts like 1/4 ET's, it's a little bit difficult to evaluate, is the cam worth the extra money spent.

If Bob want's to keep the specs of his cam as a secret, let him do it. I am not claiming about it. Don't misunderstand. I just would like to know, how well those cams perform compared to a pure stock cam.

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All the piling on aside

You raise a completely valid and legitimate question. Nothing wrong with wanting some hard facts to back up something. Buy one and set up a back to back dyno session. Or just do a cam swap at the track on the same day and see what you come up with....As a matter of fact, I think I still have one at the shop. If someone wants to dyno test it, I will donate the cam for the test...

BK is a good guy and I do consider him to be an asset to the hobby and a personal friend.



MB

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Cam Dr. it, post the specs, Game Over......

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YOU have the floor...make IT happen!!

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with ya A.E.!! It would be interesting!!
But the old adage is that, "Everyone's combo is NOT the same"!! Hencforth,that is why Bob "individualizes" his recommended cam specs. It's like trying to tailor a suit that Arnold Schwarzneger wears to fit Pee Wee Herman! Custom
fit of parts is the rule!! BTW my previous post WAS intended for Von.

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Cam Dr. it, post the specs, Game Over......

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YOU have the floor...make IT happen!!

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I wanted a stock appearing 440 magnum style engine with stockish intake and exhaust manifolds without having to sacrifice decent performance. I played the aftermarket cam crap shoot game and decided on Bob's cam after talking to him on the phone, factoring in his known engine build/car build specs, and his E.T.s.

According to published numbers provided by Pure Stock Muscle Car Drag Race , the race weight of Bob's A12 Super Bee is 3755lbs, in which they factor 441 Rear Wheel Horsepower given his E.T.s

Bob’s best E.T. to date was 12.09 seconds in the quarter @ 114 mph.

Bob’s known engine/car build on race day:

* 440 bored .060 over (453ci.)

* Venolia NHRA approved stock replacement pistons

* Mr. SixPack Camshaft

* Six Pack induction (975cfm actual)

* HP exhaust manifolds

* Factory dual point distributor

* Stock 906 heads with stock valve sizes (no porting allowed)

* Stock stamped steel HD rocker arms

* Milled heads - deck height of .027 gives him exactly 11:1 compression.

* Carter mechanical pump (M6903)

* Stock 12" Torque converter

* 4.10:1 Dana 60

* Duel exhaust with H-pipe and Dynomax Ultra Flo mufflers

* Reproduction bias-ply red line tires on stock 15-inch wheels.

So for me, the proof is in the pudding and I don't mind not knowing actual cam specs, only that it seems to work really well. I also know that after the sale Bob will help me dial everything in over the phone and e-mail because that's the type of guy he is.

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I understand people wanting cam specs and dyno tests, but for me the proof is definitely in the pudding; to the best of my knowledge ALL of the top contending PSMCDR 440-6's run Bob's cam.

With Bob's help, I have virtually duplicated his entire engine build down to carb setup, timing, etc. I have no illusions of being able to match his results but what a place to start!! Great guy.


Dave

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my $.02....

sounds like the cam was developed for a 440ish CID 6bbl motor

not sure how optimized it be and how well it would perform in a 60-70CID smaller mill with a lot less carburation, that is intended to be run with a/c, etc....

IIRC his cams are custom ground based on engle lobes.

if it were me, for a street 383, looking at shelf grinds, I'd probably look at the lunati voodoo 60302 and comp #911 springs. o-lap and seat timing are reduced from the stock magnum cam, but .050", .2" duration and lobe lift are way up.

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I have on the shelf an old unused 383/440 Magnum cam package and a Comp XE268H, but I would had liked to test something not so typical cam choice as those are. I always target at a rebuild for a little better performance

I am having for the 383 Magnum KB 400 pistons with 10:1 CR, othervise the engine is having pure stock parts, cast iron manifolds, points distributor, stock 383-4 Holley carb, etc. Heads redone 3 angle valve job, "Hemi" valve springs. That Challenger has A/C and PDB, so I would need some vacuum for the brake booster and some torque on the idle for smoothly running the A/C compressor.

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This topic really has raised up a freshing discussion about the tailor made 6-pack cam Bob has developed and is selling, but the most important question for me is, is it the right choice for my 383 Magnum rebuild?

Basicly a same cam that works well in a bigger displacement engine, may not be the perfect choice for an engine with smaller bore and less stroke.

Above are my engine's specs and in the driveline I have 383-4 stock 11" converter and 3.23 gears. Weight of the car is about 3900 lbs with driver. Car will be used mainly for cruising, but perhaps sometimes for stop light races too, if some ricers are coming to challenge the Challenger and starts burning tires beside.

So what would be YOUR recommendation, what cam to use in this 383 Magnum? Give your vote!

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I have on the shelf an old unused 383/440 Magnum cam package and a Comp XE268H, but I would had liked to test something not so typical cam choice as those are. I always target at a rebuild for a little better performance

I am having for the 383 Magnum KB 400 pistons with 10:1 CR, othervise the engine is having pure stock parts, cast iron manifolds, points distributor, stock 383-4 Holley carb, etc. Heads redone 3 angle valve job, "Hemi" valve springs. That Challenger has A/C and PDB, so I would need some vacuum for the brake booster and some torque on the idle for smoothly running the A/C compressor.

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This topic really has raised up a freshing discussion about the tailor made 6-pack cam Bob has developed and is selling, but the most important question for me is, is it the right choice for my 383 Magnum rebuild?

Basicly a same cam that works well in a bigger displacement engine, may not be the perfect choice for an engine with smaller bore and less stroke.

Above are my engine's specs and in the driveline I have 383-4 stock 11" converter and 3.23 gears. Weight of the car is about 3900 lbs with driver. Car will be used mainly for cruising, but perhaps sometimes for stop light races too, if some ricers are coming to challenge the Challenger and starts burning tires beside.

So what would be YOUR recommendation, what cam to use in this 383 Magnum? Give your vote!

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One thing you are overlooking is the factory put the same spec cam in the 383 RR engine as they did in the 440HP and the 6pk in 1969 ...



Is the shortblock already built ? If not I would get the Speed Pro 2315 flat top , put them -.002 to zero , cut the heads to 80 cc and you will have your 10.0 spec 383 build .

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Bob is not going to give you a one size fits all cam , you tell him what your engine specs are and you will get a cam to meet those specs.

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John,is this not what you would get from anyone that grinds custom cams ?

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I have on the shelf an old unused 383/440 Magnum cam package and a Comp XE268H, but I would had liked to test something not so typical cam choice as those are. I always target at a rebuild for a little better performance

I am having for the 383 Magnum KB 400 pistons with 10:1 CR, othervise the engine is having pure stock parts, cast iron manifolds, points distributor, stock 383-4 Holley carb, etc. Heads redone 3 angle valve job, "Hemi" valve springs. That Challenger has A/C and PDB, so I would need some vacuum for the brake booster and some torque on the idle for smoothly running the A/C compressor.

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This topic really has raised up a freshing discussion about the tailor made 6-pack cam Bob has developed and is selling, but the most important question for me is, is it the right choice for my 383 Magnum rebuild?

Basicly a same cam that works well in a bigger displacement engine, may not be the perfect choice for an engine with smaller bore and less stroke.

Above are my engine's specs and in the driveline I have 383-4 stock 11" converter and 3.23 gears. Weight of the car is about 3900 lbs with driver. Car will be used mainly for cruising, but perhaps sometimes for stop light races too, if some ricers are coming to challenge the Challenger and starts burning tires beside.

So what would be YOUR recommendation, what cam to use in this 383 Magnum? Give your vote!

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Bob is not going to give you a one size fits all cam , you tell him what your engine specs are and you will get a cam to meet those specs.

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John,is this not what you would get from anyone that grinds custom cams ?

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Bob is not going to give you a one size fits all cam , you tell him what your engine specs are and you will get a cam to meet those specs.



I talk to Bob,
I ordered 2 Cams
one for my 383 and one for my 451 Cid...

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with ya A.E.!! It would be interesting!!
But the old adage is that, "Everyone's combo is NOT the same"!! Hencforth,that is why Bob "individualizes" his recommended cam specs. It's like trying to tailor a suit that Arnold Schwarzneger wears to fit Pee Wee Herman! Custom
fit of parts is the rule!! BTW my previous post WAS intended for Von.

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are you saying every single cam is a custom grind? or are you saying that he has a few different cams for different applications?

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The latter. He recommends the install degrees, ignition timing and carb settings for the cam to perform best with the combo you have.
As mentioned before, he provides a wealth of knowledge behind his cams when purchased.

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Cam Dr. it, post the specs, Game Over......

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YOU have the floor...make IT happen!!

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A local shop has a cam Dr....You want to send me one, go for it...specs will follow.


Id be danged if I bought a "secret" cam....seems hokey to me...but whatever...

So, what was your post that was intended for me that is now deleted?

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[quote
You just QUOTED IT.

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To whoever, send me one and I'll have it Dr'ed....


PM if interested.

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Good Deal!! But I'll take the shootout as
an interesting conversation piece. I believe Bob's tuning skills ARE top notch and that's why HE gets good power from those Magnum-optioned motors (big block) along with his cam grinds.

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so let me see if i understand this correctly, you buy a cam from "mr six pack" and you don't get a cam card? so you have no idea the lift, duration, centerline? when somebody asks you you just shrug your shoulders? or you try and have a converter built and these are some of the questions a reputable builder would ask you, what then?

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That's why you go back to Bob K. He already "knows" what the profile will do for your engine, PROVIDED that your engine specs ARE what you say they ARE.

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I wanted a stock appearing 440 magnum style engine with stockish intake and exhaust manifolds without having to sacrifice decent performance. I played the aftermarket cam crap shoot game and decided on Bob's cam after talking to him on the phone, factoring in his known engine build/car build specs, and his E.T.s.

According to published numbers provided by Pure Stock Muscle Car Drag Race , the race weight of Bob's A12 Super Bee is 3755lbs, in which they factor 441 Rear Wheel Horsepower given his E.T.s

Bob’s best E.T. to date was 12.09 seconds in the quarter @ 114 mph.

Bob’s known engine/car build on race day:

* 440 bored .060 over (453ci.)

* Venolia NHRA approved stock replacement pistons

* Mr. SixPack Camshaft

* Six Pack induction (975cfm actual)

* HP exhaust manifolds

* Factory dual point distributor

* Stock 906 heads with stock valve sizes (no porting allowed)

* Stock stamped steel HD rocker arms

* Milled heads - deck height of .027 gives him exactly 11:1 compression.

* Carter mechanical pump (M6903)

* Stock 12" Torque converter

* 4.10:1 Dana 60

* Duel exhaust with H-pipe and Dynomax Ultra Flo mufflers

* Reproduction bias-ply red line tires on stock 15-inch wheels.

So for me, the proof is in the pudding and I don't mind not knowing actual cam specs, only that it seems to work really well. I also know that after the sale Bob will help me dial everything in over the phone and e-mail because that's the type of guy he is.

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Well said!!

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i still don't understand the secrecy.

i could see if he was running a "heads up" effort and wanted to keep his personal cam specs a secret from his competition but, if he's in the business of selling cams on the open market, why the smoke and mirrors?

as previously stated, a cam doctor will pour out the specs in a matter of minutes so.......



i mean no disrespect to mr. six pack as i'm sure he's a nice guy, i just don't see what strategic advantage is enjoyed by the secrecy.

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Maybe it is a thing called loyalty and respect for one man's hard work.
If he wanted to mass market it for a profit he would.

In this age of instant gratification it is'nt a stretch to see people upset by what they can't have.

Purchase his product and benefit from his expertise or don't and

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i still don't understand the secrecy.

i could see if he was running a "heads up" effort and wanted to keep his personal cam specs a secret from his competition but, if he's in the business of selling cams on the open market, why the smoke and mirrors?

as previously stated, a cam doctor will pour out the specs in a matter of minutes so.......



i mean no disrespect to mr. six pack as i'm sure he's a nice guy, i just don't see what strategic advantage is enjoyed by the secrecy.

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Maybe it is a thing called loyalty and respect for one man's hard work.
If he wanted to mass market it for a profit he would.

In this age of instant gratification it is'nt a stretch to see people upset by what they can't have.

Purchase his product and benefit from his expertise or don't and

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Other words like principles, ethics, and values come to mind as well but whatever… different strokes for different folks I guess…

I mean common, if it’s the man’s wish to not openly disseminate his hard work and knowledge all over the internet and the like, than why not leave it at that? And especially if you have no interest or plans in running his cam anyway?

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This topic has been gone over a few times over the years.........You guys are making this way too complicated........

The FACT is, there is ABSOLUTELY NO REASON to run one of his cams unless you're going to race your car in the Pure Stock races AND want to be certified..........Otherwise, call someone like Dwayne Porter and have one ground.........It WILL run better AND you'll even get the cam card.........

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that's pretty much my conclusion...his camshaft design is optimized for the rules of the class he races in, and compromises were made to fit those rules. if you aren't bound by those rules, there are probably better cams out there for you.

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Camshaft: The camshaft must be correct for the year, model, and horsepower claimed for the type of lifter (hydraulic or solid). Roller cams NOT allowed. Duration at .050" lobe lift must be within 1% of factory specs. Lift at the valve must be within 2% of factory specs... - Pure Stock Muscle Car Drag Race rules - link

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Camshaft: The camshaft must be correct for the year, model, and horsepower claimed for the type of lifter (hydraulic or solid). Roller cams NOT allowed. Duration at .050" lobe lift must be within 1% of factory specs. Lift at the valve must be within 2% of factory specs... - Pure Stock Muscle Car Drag Race rules - link

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I've read this before and question the whole validity of this "Certified Stock" claim when the fact is Bob's cam doesn't fit these guidelines. That and the fact that the guys who came up w/ these rules still jack around w/ the cams' LSAs as if that doesn't make a huge difference in how the engines run & idle. It's just a bunch of ego-driven crap to me...

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Brad:

As much as I like those guys over there and its a lot of fun watching those cars run, I have to agree with you 100%.

MB

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... 383-4 stock 11" converter and 3.23 gears. Weight of the car is about 3900 lbs with driver. Car will be used mainly for cruising, but perhaps sometimes for stop light races too, if some ricers are coming to challenge the Challenger and starts burning tires beside.

So what would be YOUR recommendation, what cam to use in this 383 Magnum?

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This topic has been gone over a few times over the years.........You guys are making this way too complicated........

The FACT is, there is ABSOLUTELY NO REASON to run one of his cams unless you're going to race your car in the Pure Stock races AND want to be certified..........Otherwise, call someone like Dwayne Porter and have one ground.........It WILL run better AND you'll even get the cam card.........

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that's pretty much my conclusion...his camshaft design is optimized for the rules of the class he races in, and compromises were made to fit those rules. if you aren't bound by those rules, there are probably better cams out there for you.

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The rules of the class are also consistent with anyone using an otherwise stock engine.....stock unported heads, manifolds, etc. etc. So while Bob's cam is designed for PSMCDR, it works very well in any otherwise stock B or RB engine. Are there better cams out there? maybe,but if you plan on using manifolds, etc. I would imagine his works as well or better than anything else. After all he spent the last 41 years figuring it out!

As far as the rules go, if you read the whole thing, his cams are PS legal and NO, they aren't the same as the stock cam that was installed back in 1969.

As I said earlier, I don't care what the specs are (though I have no issue with those that do), all I know is all the fastest PS cars use his cam and it WORKS. 12.09 on bias plys? I thought Jim S. even ran an unofficial 11.97......that's all I need to know.

Dave

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This topic has been gone over a few times over the years.........You guys are making this way too complicated........

The FACT is, there is ABSOLUTELY NO REASON to run one of his cams unless you're going to race your car in the Pure Stock races AND want to be certified..........Otherwise, call someone like Dwayne Porter and have one ground.........It WILL run better AND you'll even get the cam card.........

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that's pretty much my conclusion...his camshaft design is optimized for the rules of the class he races in, and compromises were made to fit those rules. if you aren't bound by those rules, there are probably better cams out there for you.

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This topic has been gone over a few times over the years.........You guys are making this way too complicated........

The FACT is, there is ABSOLUTELY NO REASON to run one of his cams unless you're going to race your car in the Pure Stock races AND want to be certified..........Otherwise, call someone like Dwayne Porter and have one ground.........It WILL run better AND you'll even get the cam card.........

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that's pretty much my conclusion...his camshaft design is optimized for the rules of the class he races in, and compromises were made to fit those rules. if you aren't bound by those rules, there are probably better cams out there for you.

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The Vodoo 220/226 @.050 with a 475/494 lift, 112 lsa really really surprised me when i installed it, sound near stock with a TON of mid range torque and power in the 2 to 4,500K range it does fall of at around 5,500 on my very stock 383 4-speed RR

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The Crower grind 32242 is also a great cam for a 440/6 with stock manifolds/valvetrain and probally one of the closest grinds to Bob Ks cam.

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I installed Bobs cam in a friends Challenger 440/6 after he wiped a cam and I was amazed how well it ran. I think the secret to the cams success is a wide LSA and the short duration that seems to work well with STOCK exhaust manifolds and unported heads. After we installed the cam the car was taken to the track were it ran a 105 mph in the 1/4 spinn the tires for over 300ft. His car has 3.23 rear and a tight converter that also works well with Bobs cam. If you have a restoration type build with manifolds and stock heads ,valvetrain and converter and 3.23-3.55 rear this is a great cam. BTW, what the big secret ? His cam is a short duration with a wide LSA (113-115) and these specs are not really offered by any cam mfg. The Crower grind 32242 is also a great cam for a 440/6 with stock manifolds/valvetrain and probally one of the closest grinds to Bob Ks cam.

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Thanks for the post, especially with regard to, "After we installed the cam the car was taken to the track were it ran a 105 mph in the 1/4 spinn the tires for over 300ft. His car has 3.23 rear and a tight converter that also works well with Bobs cam."

I'm curious now what size wheels and tires were on your friends car that he broke the tires loose for 300ft. with 3.23:1 gears?

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All I can say is "Mr. Pack Six" cams work!

My 38000 lb. barge with the original beat-to-death unmolested short block complete with those big stupid 6BBL rods and cast rings has gone 12.58 @ 110 with his cam.

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Cool!

Is that a 454 Chevelle LS6 you're beating on?

What's the rest of your package look like?

Stock heads?

Torque converter?

4.10:1?

etc...

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And yes it's the original standard bore 440 motor and that's a LS6 454 Chevelle SS in the next lane.

All I did was install Bob's cam (he also worked some magic on the Holleys), did a valve job and installed a TTI exhaust. It's also a 4.10 Dana car.

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And yes it's the original standard bore 440 motor and that's a LS6 454 Chevelle SS in the next lane.

All I did was install Bob's cam (he also worked some magic on the Holleys), did a valve job and installed a TTI exhaust. It's also a 4.10 Dana car.

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I think it was an article on your car with before and after testing that convinced me to go with the TTI exhaust.

I'm running the same basic package, but my motor is fresh and "optimised" for PS a bit.......but I'd be very happy to match your results.


Dave