[TAQuest]

It's like saying you like a Buick because the distributor is in front. They are all the same so it's hard to rank them. Mostly, we are a product of our experiences. I had a great Buick 455 once so I get a warm fuzzy for them.
Dave probably got handed down grandma's Grandville that was tired and he couldn't get it to go. Can't get over it. It's a good (non)reality show though. Fun to watch at times. Brings back memories.

[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?

[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


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[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.

[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.


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[TAQuest]

Must be different guys. Just saw them locally:
https://www.youtube.com/watch?v=DqkSPZLMSjA

[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.

[TAQuest]

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.

I have that issue. I bet Dave had it in the back of his mind too and that's where the comment came from. He usually has back up ….

[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.

[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.

[TAQuest]

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

[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?

[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>

[Half-Inch Stud]

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?

The PMD-cast M/T Hemi block shows a fully filled Valley; is evidence the PMD Engineers knew for sure that the valley could be filled with iron for stability & strength.

Im certain that Production pressures cause castings to be thin wall, so a qualified vat can make to most parts. Even the machined shavings went to remelt huh.

[Tom Vaught]

Originally Posted by Half-Inch Stud

The PMD-cast M/T Hemi block shows a fully filled Valley; is evidence the PMD Engineers knew for sure that the valley could be filled with iron for stability & strength.

Im certain that Production pressures cause castings to be thin wall, so a qualified vat can make to most parts. Even the machined shavings went to remelt huh.

True statement, in my way of thinking.

Example, the 64 Heater plumbing worked fine. No robbing of the coolant flow by the heater core from the passenger head. BUT Pontiac changed the design (for a few pennies of savings on every foot of Heater Hose eliminated by the shorter hose system.

Imagine the $$ saving in all of that cast iron over millions of blocks (for Pontiac over the years) of production. All about the $$$ in my mind.

They would not have put the lifter boss support struts on the RA-V type blocks if there was not a need (when used with a racing camshaft).

Thankfully the aftermarket blocks have that built into their design.

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.