[Murf]

Originally Posted by 389

I spend more time in the garage then wasting my life watching those shows.. My buddy shook the hand of the dude with the 70 GTO that's on that one show, he said his hand was silky soft.. Another thing, how do these guys actually work on cars with ten inches of hair hanging off there face?

Ya gotta steer clear of the fan!

I like Engine Masters show a lot. Good to see some actual testing of ideas. I really thought the “dented headers” episode was pretty good.

The thing I dislike about Roadkill is they just cobble crap together. Then go tear it up. They act like children. I have never understood how you can be “into cars” yet have absolutely no respect for equipment.

Now, get off my lawn!
My


Sent from my iPhone using Tapatalk Pro

[TAQuest]

Originally Posted by Murf

Ya gotta steer clear of the fan!

I like Engine Masters show a lot. Good to see some actual testing of ideas. I really thought the “dented headers” episode was pretty good.

The thing I dislike about Roadkill is they just cobble crap together. Then go tear it up. They act like children. I have never understood how you can be “into cars” yet have absolutely no respect for equipment.

Now, get off my lawn!
My


Sent from my iPhone using Tapatalk Pro

Well yah! We were all 'children' once messing with cars. I thought that was his whole point?
They have plenty of engines and cars that are just about perfect.
They just do 'roadkill' because that's the show.
I watched a video they made about intakes on a dyno. Very informative. No BS. All facts backed up.

[TAQuest]

I'm not sure how many know it, Dave is editor and chief of Hotrod mag and Mike is also and editor.

[MarkS57]

Originally Posted by Schurkey

My life substantially improved when I ended Cable TV in '97. More than twenty years ago--time flies when you're having fun..

There's a lesson in this...

We are working towards this, recently I put up a monster attic antenna for good over the air (OTA) reception. There are a large number of channels available these days with the digital architecture- cutting the cord so to speak. I do not like reality TV. We find ourselves watching PBS stuff quite a bit like Create / Nova etc (but not the crap with a political bend ).

[ta man]

Originally Posted by android 211

I recall a feature in High Performance Pontiac magazine (RIP) about a '70 GTO with turboed 400. I'm going to misspell the owners name and I apologize - Marty Probalkin. He found that exceeding 1,200 hp caused the block to split. I think it was an exhibition, total drag only car.

A historic old car Marty Palbykin's GTO...and with the current owner even more famous and a little more power.

[Murf]

Originally Posted by TAQuest

Well yah! We were all 'children' once messing with cars. I thought that was his whole point?

They have plenty of engines and cars that are just about perfect.

They just do 'roadkill' because that's the show.

I watched a video they made about intakes on a dyno. Very informative. No BS. All facts backed up.

Well yah! I was a child once too but I grew out of it before I was 50.
I do understand the point of the show but it seems like they could make some nice stuff outta some of their cars.
Oh well , they have a show & I don’t.


Sent from my iPhone using Tapatalk Pro

[Sirrotica]

As has been said, Marty Palbykin sold the bones of his Pro Mod GTO after campaigning it, and after removing the turbo Stratostreak engine, then replacing it with a supercharged alky private label engine in it.

It was sold to Big Chief/Brand X, on this board so the car is now one of the featured cars on Street Outlaws owned by Justin Shearer, host of Street Outlaws. It now also has a turbo Pontiac Stratostreak V8 in it at this point and replaced the original Crow that Shearer wrecked a few years ago on the show.

So Marty's tube chassis race car is still around, just switched owners and was again repowered by a true Pontiac engine.

The fastest I could find for Pro Mod version, with the private label engine in it was a 6.32.

[TAQuest]

Originally Posted by Sirrotica

As has been said, Marty Palbykin sold the bones of his Pro Mod GTO after campaigning it, and after removing the turbo Stratostreak engine, then replacing it with a supercharged alky private label engine in it.

It was sold to Big Chief/Brand X, on this board so the car is now one of the featured cars on Street Outlaws owned by Justin Shearer, host of Street Outlaws. It now also has a turbo Pontiac Stratostreak V8 in it at this point and replaced the original Crow that Shearer wrecked a few years ago on the show.

So Marty's tube chassis race car is still around, just switched owners and was again repowered by a true Pontiac engine.

The fastest I could find for Pro Mod version, with the private label engine in it was a 6.32.

The Crow;
https://www.youtube.com/watch?v=mchwCAxspD8

[Sirrotica]

That would be the original car that was totaled a few years ago, this is the ex Palbykin car now and Crow 2.0;

https://www.youtube.com/watch?v=iOiTA2ih_Ro

[KEN CROCIE]

Getting back to "design flaw".
The design flaw is that the engineers who designed the Pontiac engine in or about 1953 did not anticipate a roller cam would be installed, 60 years later, that had so much lift and duration that the lifter bores would snap off as a result.
Could it be the open design of the lifter valley was used to promote and ensure lifter lubrication?

[Tom Vaught]

Originally Posted by android 211

I recall a feature in High Performance Pontiac magazine (RIP) about a '70 GTO with turboed 400. I'm going to misspell the owners name and I apologize - Marty Probalkin. He found that exceeding 1,200 hp caused the block to split. I think it was an exhibition, total drag only car.

Marty Palbykin ran the car for 3 years with the 406 cid Twin Turbo Pontiac Engine.
During that time the engine was making a documented (Tom Earhart Dyno) 1600 hp,
not 1200 hp. He also ran a best of 6.95 with the Pontiac Engine and cast iron heads.

The chassis, 1970 GTO PRO MOD chassis, went into the high 5s in the quarter at Tucson, Arizona multiple times with the Brad Anderson Engine.

So Chief would up with a GTO Chassis, By Jeff Covey, that was quite a bit better vs Chief's Crowmod deal even though the crowmod had a better aero number. Jeff Covey had built 8 or 9 Pro Mod Chassis before he did Marty's Car. Experience and chassis rework allowed Marty to go even quicker vs the Pontiac Engine runs.

So a few on the comments above needed a bit of a correction. It was the second 6 second car with a Pontiac Engine after Beswick's car. Two years before anyone even came close to running those times even with a dragster chassis.

Marty ran in the Pro Mod series in Tucson with the Brad Anderson in competitive events for several years. Not a Exhibition Car there.

Chief made out like a Bandit on that deal.

Tom V.

[taff2]

I welded up the weak open valley on an early '59 389 block, it is a weakness I believe, compounded by fitting lightweight ali intake manifolds. My 389 (turbo combo) block is still together, the engine made just under a 1000 hp, not a lot I know by today's standards, before I had to take it out because I forgot to put antifreeze in the engine - and the block cracked! I've repaired the cracks (front of the block just below the heads) and it pressure tested fine, it's sat there as a backup for the 'new' '59 block combo.
The new combo block will have a TIG brazed lifter valley this time, in an effort to reduce the amount of distortion caused to the lifter bores by the arc welding process. Pics are of the old 389 block with painted valley, and the other pics are of the 'new' 389 valley plates that I had laser cut from 6mm steel. This 'new' block will also have a mains girdle but I've modified the design a bit to make it stronger (even though there was nothing wrong with the old one- bearings and crank were all good. I'll update as I go along if anyone is interested.
I've

[Sirrotica]

Originally Posted by taff2

I welded up the weak open valley on an early '59 389 block, it is a weakness I believe, compounded by fitting lightweight ali intake manifolds. My 389 (turbo combo) block is still together, the engine made just under a 1000 hp, not a lot I know by today's standards, before I had to take it out because I forgot to put antifreeze in the engine - and the block cracked! I've repaired the cracks (front of the block just below the heads) and it pressure tested fine, it's sat there as a backup for the 'new' '59 block combo.
The new combo block will have a TIG brazed lifter valley this time, in an effort to reduce the amount of distortion caused to the lifter bores by the arc welding process. Pics are of the old 389 block with painted valley, and the other pics are of the 'new' 389 valley plates that I had laser cut from 6mm steel. This 'new' block will also have a mains girdle but I've modified the design a bit to make it stronger (even though there was nothing wrong with the old one- bearings and crank were all good. I'll update as I go along if anyone is interested.
I've

By all means please document it, always interested in Pontiac guys that think outside the box. That's a nice looking main girdle you're making to hold everything together without a skirted block to start with.

[krisr]

Originally Posted by KEN CROCIE

Getting back to "design flaw".
The design flaw is that the engineers who designed the Pontiac engine in or about 1953 did not anticipate a roller cam would be installed, 60 years later, that had so much lift and duration that the lifter bores would snap off as a result.
Could it be the open design of the lifter valley was used to promote and ensure lifter lubrication?

I agree that the open lifter bores + the roller camshafts that we're running today is probably the "suggested flaw", but it's because we are operating outside of the limits of the blocks original intended purpose. But it's an easily correctable flaw as is with technology advancements today we can reinforce the bores and enjoy life. </thread>

[Will]

For the vast majority of Pontiyakkers, this "design flaw" is of no concern whatsoever. Honestly, how many people are building engines over 600 HP? How many are over 500 HP?

[taff2]

Originally Posted by Sirrotica

That's a nice looking main girdle you're making to hold everything together without a skirted block to start with.

That's the original girdle I made years back ,it works fine but I have another stronger one in the making, I want to really lean on this new combo.
The idea of the girdle is to emulate a skirted/crossbolted bottom end, which along with the welded in valley should strengthen the block substantially.

[HO Kenny]

Do you want a design flaw? What kind of brainless engineer would make the exhaust manifold bolts go into the water jacket? Dodge did! It may not break but it’s really stupid and cheap. I have run into a couple big block dodges leaking antifreeze into the exhaust.
Ever changed plugs on a big block dodge that’s hot?
You better be wearing asbestus gloves and sleeves, that’s if you can get to them under that stupid upside down manifold.
Ever tried to get out a power steering pump or box out of one of these big block Cudas?
That’s some real world design flaws that your average car guy is going to run into.
I’m never going to build anything that will split the lifter valley. For those who do, there is a fix.

[TAQuest]

Originally Posted by RocktimusPryme

Hell I would actually even tell you after building my first gen that I would rather it be an early 2nd gen. I just think they are probably better cars.

Whaaaaaaat? Say it aint so. When I drive a 2nd gen, owned a few, they feel like they are just a 1st gens fat sister. lol Some like that.

[RocktimusPryme]

Originally Posted by TAQuest

Whaaaaaaat? Say it aint so. When I drive a 2nd gen, owned a few, they feel like they are just a 1st gens fat sister. lol Some like that.

By most reports the 2nd gens are just built a little better, less of a rattle trap. Now Im sure part of that with mine is I just started with a rough car. So the windows out out of alignment etc etc. But yeah, if I could take my motor and put it in a 70-73 I would. I don't hate my car, I just think I would like the other better. More head room, more likely to be disc braked, more exhaust options, more interior options.

[tom s]

Engineering actually got a block right with the 69-70 RA V 303 SCCA block.Filled in lifter bore area and reinforced thrust side in the block,4 bolt mains etc.Just never enough of them.Tom