Streetmaster to Airgap

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He said this too:

We are very partial to the 302 heads both for power and mileage by a wide margin!

What!?! A serious class racer likes 302 heads? Who could have thought.

But some how you guys assure me they cant make power........I know who I'd be sending my heads to if I wanted them ported

Hope I don't get you into trouble John.
 
He said this too:

We are very partial to the 302 heads both for power and mileage by a wide margin!

What!?! A serious class racer likes 302 heads? Who could have thought.

But some how you guys assure me they cant make power........I know who I'd be sending my heads to if I wanted them ported

Hope I don't get you into trouble John.

Why would you port them? They already have all the airflow you need!
 
I believe ANY small block and big block mopar head from 1964 and up can be worked with and made to perform to a point. 302's are no exception, they can be ported and larger valves installed which will greatly improve the performance compared to stock. But some heads allow the performance to go beyond other heads, or have a much higher ceiling.
  • Back to the point of the intakes (what the thread was about), I don't know of anyone that would be excited to bolt on a streetmaster and lose horsepower. And that was the topic, hp.
 
I believe ANY small block and big block mopar head from 1964 and up can be worked with and made to perform to a point. 302's are no exception, they can be ported and larger valves installed which will greatly improve the performance compared to stock. But some heads allow the performance to go beyond other heads, or have a much higher ceiling.
  • Back to the point of the intakes (what the thread was about), I don't know of anyone that would be excited to bolt on a streetmaster and lose horsepower. And that was the topic, hp.
I'd like to see the torque curve, the Streetmaster could have made a real tire fryer.
 
I'd like to see the torque curve, the Streetmaster could have made a real tire fryer.
wasn't that the intent of the streetmaster? Really it was designed for stock exhaust, cams, and heads, with highway gears. I ran the Holley street Dominator on the low dollar 318. The factory cast 340 intake went 1.5 tenths quicker than the dominator even though the cast had an adaptor for the spreadbore to square Holley carb. Amazingly, the street dominator 60 ft the same, though.
 
Why would you port them? They already have all the airflow you need!

Is this what I've reduced you to? A meme that asks silly questions in the hope of trying to salvage some pride after it became painfully obvious that a 302 head can make all the power I need? Even after you spent numerous pages avoiding the question in the hope that you wouldn't have to concede and now you want to do it all again.

I love that fighting spirit!
 
I'd like to see the torque curve, the Streetmaster could have made a real tire fryer.

I've got one in the garage ill get around to playing with. I think with a bigger plenum and a smoother transition to the runner it might surprise. I prefer the Street Dominator with a bigger split plenum to suit a Thermoquad I'm itching to try it on a 318. So many manifolds to try and not enough time to do it all.
 
Is this what I've reduced you to? A meme that asks silly questions in the hope of trying to salvage some pride after it became painfully obvious that a 302 head can make all the power I need? Even after you spent numerous pages avoiding the question in the hope that you wouldn't have to concede and now you want to do it all again.

I love that fighting spirit!

There you go hallucinating opinions again. No data, math, science, or experience to back it up. But at least we know 13s are fast enough for you, glad you've already reached the top of your mountain.
 
He said this too:

We are very partial to the 302 heads both for power and mileage by a wide margin!

What!?! A serious class racer likes 302 heads? Who could have thought.

But some how you guys assure me they cant make power........I know who I'd be sending my heads to if I wanted them ported

Hope I don't get you into trouble John.


I read the article you posted. Not a word about a small block GTX. Get your story straight.
 
Is this what I've reduced you to? A meme that asks silly questions in the hope of trying to salvage some pride after it became painfully obvious that a 302 head can make all the power I need? Even after you spent numerous pages avoiding the question in the hope that you wouldn't have to concede and now you want to do it all again.

I love that fighting spirit!


If that’s all the power you need take up checkers.
 
There you go hallucinating opinions again. No data, math, science, or experience to back it up. But at least we know 13s are fast enough for you, glad you've already reached the top of your mountain.

You mean this junk:

1964 Valiant 3300 pounds with driver
360 .70 over with 9.6-1 comp
Ported 302's 62 cc
Performer manifold with Edelbrock 600 carb
Crower 271 HDP cam 1.6 rockers
1.5/8 headers and 2.5 inch exhaust
904 TA 10 inch converter
8 3/4 3.73 gears
M/T 255 street radials

You missed this bit 5 posts later: Car went 12.63 @ 107 mph on a 1.853 60ft.

As you can see I use only top shelf big dollar parts that only the Stock Eliminator guys would use.....Even funnier was a leakdown test showed 1 bad cylinder and another heavily scored.
 
You mean this junk:

1964 Valiant 3300 pounds with driver
360 .70 over with 9.6-1 comp
Ported 302's 62 cc
Performer manifold with Edelbrock 600 carb
Crower 271 HDP cam 1.6 rockers
1.5/8 headers and 2.5 inch exhaust
904 TA 10 inch converter
8 3/4 3.73 gears
M/T 255 street radials

You missed this bit 5 posts later: Car went 12.63 @ 107 mph on a 1.853 60ft.

As you can see I use only top shelf big dollar parts that only the Stock Eliminator guys would use.....Even funnier was a leakdown test showed 1 bad cylinder and another heavily scored.

Always with the excuses... Bad cylinders, scoring, misfires, bad suspension..

I think you should stick to shuffleboard. You screwed up your porting, making the car slower, and then brag about a slow car you can't even build well enough to keep all 8 cylinders alive. Hahaha. I'd feel bad for you if you weren't such a drag.

The guys you worship are far faster without all the piss poor porting, and despite the fragile nature of a stock build, they even manage to keep their motors intact.

Pathetic.
 
Always with the excuses... Bad cylinders, scoring, misfires, bad suspension..

I think you should stick to shuffleboard. You screwed up your porting, making the car slower, and then brag about a slow car you can't even build well enough to keep all 8 cylinders alive. Hahaha. I'd feel bad for you if you weren't such a drag.

The guys you worship are far faster without all the piss poor porting, and despite the fragile nature of a stock build, they even manage to keep their motors intact.

Pathetic.

Even if the car ran 10's you would write the same garbage because that's who you are. You still didn't answer the question......
 
Even if the car ran 10's you would write the same garbage because that's who you are. You still didn't answer the question......

You started this troll thread. The question was whether 20hp was worth it for an intake swap. When everyone basically said "yes, to say otherwise suggests brain damage", you got in a huff because that's who you are. A troll who justifies their slowness by claiming "but I did it cheaper" - yet for the same cost and amount of work, you should be clicking odd consistent 10s.

You're doing nothing that everyone else has accomplished with the same parts. No new ground broken. You can barely keep it together, and yet feel you have a combo worth bragging about because better and faster racers have used parts that kinda sorta look like yours.

You cosntantly pose cryptic questions and make assertions with no data to backup the explanation you claim is the right one. All of it suggests you like to stir **** while having barely a passing knowledge of the science and engineering that makes it actually work. Then you move the goalposts or change the question when you get called out for being a pedantic troll.
 
If only they'd tossed the SM back on at the end......then We'd REALLY know sumpin'..
 
I like (sarcasm) how he starts in with everybody on the 302 from the magazine article with stock heads and turns it into a battle field with someone else’s car, not even his own, if he owns one, and that someone else who he brings into the fire is running ported 302 heads.

What a dick!!!!
 
Even if the car ran 10's you would write the same garbage because that's who you are. You still didn't answer the question......
What’s the big deal, you haven’t answered a few question ether!
 
wasn't that the intent of the streetmaster? Really it was designed for stock exhaust, cams, and heads, with highway gears. I ran the Holley street Dominator on the low dollar 318. The factory cast 340 intake went 1.5 tenths quicker than the dominator even though the cast had an adaptor for the spreadbore to square Holley carb. Amazingly, the street dominator 60 ft the same, though.
I'm not familiar with the small block street Dominator, but I do know the 383 street Dominator makes a little more on the top end than an RPM.
Being a dual plane the RPM is better in the middle rpm's.
 
You mean this junk:

1964 Valiant 3300 pounds with driver
360 .70 over with 9.6-1 comp
Ported 302's 62 cc
Performer manifold with Edelbrock 600 carb
Crower 271 HDP cam 1.6 rockers
1.5/8 headers and 2.5 inch exhaust
904 TA 10 inch converter
8 3/4 3.73 gears
M/T 255 street radials

You missed this bit 5 posts later: Car went 12.63 @ 107 mph on a 1.853 60ft.

As you can see I use only top shelf big dollar parts that only the Stock Eliminator guys would use.....Even funnier was a leakdown test showed 1 bad cylinder and another heavily scored.
I don’t believe a word of this.

100% Hogwash!
 
You started this troll thread. The question was whether 20hp was worth it for an intake swap. When everyone basically said "yes, to say otherwise suggests brain damage", you got in a huff because that's who you are. A troll who justifies their slowness by claiming "but I did it cheaper" - yet for the same cost and amount of work, you should be clicking odd consistent 10s.

Nope. That's what you imagined in that head of yours.

You cosntantly pose cryptic questions

You think asking whether a 302 head can make power is cryptic....Are you still confused? Its pretty obvious that a stock eliminator head can make more than enough power with the little cfm it flows as PHR posted yet you cant accept that a 302 head that flows 200 cfm has the potential to do the same. Its incredible how the mind can accept a reality for one person but not that same for another....... Must be a Chevy can do it but a Mopar cant thing.

What this thread has clearly shown is that on that engine going from a tiny intake manifold port window to a larger one didn't make much of a difference at 5600 RPM, 16 HP to be precise. How much extra CFM did the engine use to make that extra 16 HP @ 5600 RPM? If that area was going to be a restriction it would have shown up but it didn't.

200 cfm is 200 cfm and if you can use it you'll make power no matter what head it is and what brand. But it seems to me that its only when its a Mopar 302 head and ME posting that the rules change in the land of physics.
 
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