[Steve C.]

My 10.63 @127 mph was about a 3750+ lbs race weight and at the time with a TH400 and 3.73 gears and 28" tires. The 505 dyno'd at 660 hp at 6000 rpm with only 10:1 compression. 320ish cfm Edelbrock heads and a Victor intake with a HP950 carb. I started out with a Crower 260 degree solid roller and 4.250" lobe lift and 1.65 rockers. But later changed to a UltraDyne MSP solid roller with 255 degrees and .4300" lobe lift for the 660 hp and the 10.63 ET mentioned. Tested at the track for interest only, it's now street only. I would think 330 cfm heads, more compression and a bit more cam would be a slam dunk for 700 hp.



.

[charlie66]

Originally Posted by Dragncar

Exactly, you could make more than that with a big set of heads. Over on PZ Gach has a pump gas 505 with std cam that goes 850+ on pump gas with off the shelf Comp Super Stock cam. He does currently have the best flowing set of E heads I know of (430ish) and a badd @$$ Victor. His E heads are the new E heads with LS chamber by Dave Wilcox. People LOVE them, there are a few sets out now.
The 461 I am doing right now should be right around 700 HP on pump gas. std High Ports that go 359cfm. I will run Norris SS rockers with stud girdle.
There is no reason you could not get your 700+ HP with the 350cfm std port E heads like SD sells and run your Crower SS rockers with girdle.
Now Dave Wilcox gets 372cfm out of his std E heads which will get you there with ease. You will need to have your Northwind worked by him too for that. He just did a set of big offset E heads that went 425+ and ported a Northwind to match for a guy doing a ultimate under the hood deal.
Those Eagles, I would buy some new Molnar rods. By the time you get the ARP 200 bolts and resize them you are not far off a new set of 600$ Molnars. Turns out they are a very tough rod. Better than Eagles or Scats by a long shot.
Pic is a cross section of rods. Rod on left is the Molnar vs The Eagle on the right. You tell me which is stronger. They have not had a rod caused failure yet with their standard rod let alone their Power Adder or Power Adder + rods. People use their standard rods in 1000+ HP builds.

The round u cut shape is good. Reminds me of my Carrillos..

[PAUL K]

Originally Posted by slowbird

Gach doesn't have a 850hp pump gas engine, everything he says/posts is mostly bs. Dragncar should know better than to bring him up.

Lol....remember when Gach asked me to post his dyno sheet from that engine and it turned out to be one of your old dyno sheets.

Really amazing that anyone could forget that.

Fwiw we run Eagle cranks and rods at well North of 1200 horsepower and never had a failure... One set up is even in a low 8 second pump gas Pontiac engine... using the Baddest standard pushrod location pump gas E'heads on the Planet... done by us of course

[AG]

Originally Posted by Steve C.

My 10.63 @127 mph was about a 3750+ lbs race weight and at the time with a TH400 and 3.73 gears and 28" tires. The 505 dyno'd at 660 hp at 6000 rpm with only 10:1 compression. 320ish cfm Edelbrock heads and a Victor intake with a HP950 carb. I started out with a Crower 260 degree solid roller and 4.250" lobe lift and 1.65 rockers. But later changed to a UltraDyne MSP solid roller with 255 degrees and .4300" lobe lift for the 660 hp and the 10.63 ET mentioned. Tested at the track for interest only, it's now street only. I would think 330 cfm heads, more compression and a bit more cam would be a slam dunk for 700 hp.



.

As stated, slam dunk. You will be closer to 10.00 than 10.50, into the 9s and you need extra safety equipment, chassis cert, cage etc. I don't race competitively, just for the fun of it. The race drivetrain will go into my '68 Bird when I'm done racing for a hot street car.

[Dragncar]

Originally Posted by slowbird

Gach doesn't have a 850hp pump gas engine, everything he says/posts is mostly bs. Dragncar should know better than to bring him up.

It was more about him not needing a 55m and .904s to make his 750 HP than anything.
I am sure you would agree on that part of it.


But you know way back when that happened. People read this stuff who do not like to get into it online. When I brought that up some noticed. 5 sets of those heads have sold since. Dave's wide port E heads are the best bang for you Pontiac dollar there is.
For the sake of his thread I will not argue with you about it here. If you want to make some other thread on it, fine but the OP deserves better.

[PAUL K]

Originally Posted by Dragncar

Dave's wide port E heads are the best bang for you Pontiac dollar there is.


.

Any track numbers on those Bad Boyz?

[PAUL K]

Originally Posted by Dragncar

It was more about him not needing a 55m and .904s to make his 750 HP than anything.
I am sure you would agree on that part of it.

Darby uses a 55mm and 904's and fell short of 750. Maybe you could help him (Darby) out?

[slowbird]

Originally Posted by Dragncar

It was more about him not needing a 55m and .904s to make his 750 HP than anything.
I am sure you would agree on that part of it.


But you know way back when that happened. People read this stuff who do not like to get into it online. When I brought that up some noticed. 5 sets of those heads have sold since. Dave's wide port E heads are the best bang for you Pontiac dollar there is.
For the sake of his thread I will not argue with you about it here. If you want to make some other thread on it, fine but the OP deserves better.

Not bashing Wilcox, just saying everything Gach posts is bs and you should know better. No need to spread his bs.
It's cool you helped sell 5 sets of heads for Wilcox. It'd be even cooler if we saw some dyno or et slips for his heads

[grandville455]

Originally Posted by PAUL K

Darby uses a 55mm and 904's and fell short of 750. Maybe you could help him (Darby) out?

Waaaaaay short Paul 😂 748.4

[slowbird]

Originally Posted by PAUL K

Darby uses a 55mm and 904's and fell short of 750. Maybe you could help him (Darby) out?

We've made 750hp from a hyd roller and tri-power. All that fancy stuff isn't needed. But if you plan on stepping up later it's worth ordering the block with those mods, it save time and money later.

[grandville455]

Originally Posted by slowbird

We've made 750hp from a hyd roller and tri-power. All that fancy stuff isn't needed. But if you plan on stepping up later it's worth ordering the block with those mods, it save time and money later.

Pump gas tho?

[PAUL K]

Originally Posted by grandville455

Waaaaaay short Paul �� 748.4

Expect a PM from Dragncar he will show you the way to 750hp

[slowbird]

Originally Posted by grandville455

Pump gas tho?

No but it was with a stupid tri-power and hyd-roller i figured you could spot us a point or 2 on compression, lol

[grandville455]

Originally Posted by slowbird

No but it was with a stupid tri-power and hyd-roller i figured you could spot us a point or 2 on compression, lol

I can Brian lol!!

[PAUL K]

Originally Posted by slowbird

We've made 750hp from a hyd roller and tri-power. All that fancy stuff isn't needed. But if you plan on stepping up later it's worth ordering the block with those mods, it save time and money later.

We've made almost double that with a standard core cam and .842 lifters and close to triple that amount of power with a SBC using a standard cam core and .842 lifters. I doubt it's the intentions of the OP to ever get to the point of needing the big boy stuff and he would just be spending a bunch of money for no good reason.

But I agree if you're a hard core racer to order all the options up front. I will be a lot cheaper and less hassles down the road.

[slowbird]

Originally Posted by PAUL K

We've made almost double that using a standard core cam and .842 lifters and close to triple that amount of power with a SBC using a standard cam core and .842 lifters. I doubt it's the intentions of the OP to ever get to the point of needing the big boy stuff and he would just be spending a bunch of money for no good reason.

No body likes a bragger

[PAUL K]

Originally Posted by slowbird

No body likes a bragger

Lol

[Dragncar]

Originally Posted by PAUL K

Darby uses a 55mm and 904's and fell short of 750. Maybe you could help him (Darby) out?

Are you feeling lonely to nite for some reason ? You must.
You and your pal Brian always seem to have a problem if I try and give some advice.
He does not need a 55mm and going to Wilcox is the best advice I can give for the money. 3800$ for a pair of heads that will get you just shy of a pair of 7500$ heads is money well spent. And he does not even have to spend the 3800$ for a new set of std port heads. Nothing fancy needed and he can use his intake.
Besides, he can get a set of good used heads that will more than do what he wants. Just have to look, wait a bit. They show up.

[slowbird]

Originally Posted by Dragncar

Are you feeling lonely to nite for some reason ? You must.
You and your pal Brian always seem to have a problem if I try and give some advice.
He does not need a 55mm and going to Wilcox is the best advice I can give for the money. 3800$ for a pair of heads that will get you just shy of a pair of 7500$ heads is money well spent. And he does not even have to spend the 3800$ for a new set of std port heads. Nothing fancy needed and he can use his intake.
Besides, he can get a set of good used heads that will more than do what he wants. Just have to look, wait a bit. They show up.

Can you clarify the $3800 pair of heads that will get you just shy of a pair of $7500 heads statement?

[PAUL K]

Originally Posted by Dragncar

Dave's wide port E heads are the best bang for you Pontiac dollar there is.

Originally Posted by PAUL K

Any track numbers on those Bad Boyz?

Something confuse you about this question?