Thanks Rusty,
Your Compliment Is Much Appreciated........Early AM Coffee......:coffee2:
Paul
Getting the Intake on Intake Manifolds
- Thread starter 69 Cuda 440
- Start date
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Thanks Rusty,
Your Compliment Is Much Appreciated........Early AM Coffee......:coffee2:
Paul
Hipolito,
Do not despair.
Back in the day, Holley produced '2' different type of 'Street Dominator'' Intakes for
the 'Mopar 318'
* 300-7 {ie; 300-29Z} ....... 'Open-Plenum'
* 701R-29Z ...................... 'Split-Divider' with Rear Balance Tube
Both were listed as 'Medium-Riser' Single-Plane Intakes, with a 'Low-Profile' design.
______________________________________________________________
'Holley' advertisement >
Specifically designed for 'Stock-to-Mild' 318 Engines, and with a recommended use of a 600 CFM Carburetor, primarily the 'later' Thermoquads found on the 318 >
{which are rated anywhere between 520 CFM's and 650 CFM's, depending on who you talk to}.
The {#300-7} has an 'Open-Plenum', with slightly curved runners which
provides for a 'fatter' torque-curve.
The Ports are designed for 'Small-Port' 273/318 Cylinder Heads, and the
runner-ports are both 'curved and smooth' to provide for a quicker
throttle response over a 'stock' Intake.
The {#300-7} delivers very good 'Low-End' Torque, because of the massive
restriction under the plenum.
It performs well from 1000 to 4800 RPM's.
The {#300-7} has a Carburetor Flange opening designed for a
Carter Thermoquad Carburetor.
______________________________________________________________
What was 'not' stated >
The {#300-7} has poor breathing above 4800 RPM's.
Do not despair.
Back in the day, Holley produced '2' different type of 'Street Dominator'' Intakes for
the 'Mopar 318'
* 300-7 {ie; 300-29Z} ....... 'Open-Plenum'
* 701R-29Z ...................... 'Split-Divider' with Rear Balance Tube
Both were listed as 'Medium-Riser' Single-Plane Intakes, with a 'Low-Profile' design.
______________________________________________________________
'Holley' advertisement >
Specifically designed for 'Stock-to-Mild' 318 Engines, and with a recommended use of a 600 CFM Carburetor, primarily the 'later' Thermoquads found on the 318 >
{which are rated anywhere between 520 CFM's and 650 CFM's, depending on who you talk to}.
The {#300-7} has an 'Open-Plenum', with slightly curved runners which
provides for a 'fatter' torque-curve.
The Ports are designed for 'Small-Port' 273/318 Cylinder Heads, and the
runner-ports are both 'curved and smooth' to provide for a quicker
throttle response over a 'stock' Intake.
The {#300-7} delivers very good 'Low-End' Torque, because of the massive
restriction under the plenum.
It performs well from 1000 to 4800 RPM's.
The {#300-7} has a Carburetor Flange opening designed for a
Carter Thermoquad Carburetor.
______________________________________________________________
What was 'not' stated >
The {#300-7} has poor breathing above 4800 RPM's.
Old Man Mopar
Righteous Dude
Are you trying to give yourself a headache Paul? Some back-to-back dyno numbers would
be swell like in the recently referenced 383 and 440 intake manifold tests.
That Weiand #7507 does look virtually identical to the LD-340. Coincidence? Probably not.
be swell like in the recently referenced 383 and 440 intake manifold tests.
That Weiand #7507 does look virtually identical to the LD-340. Coincidence? Probably not.
Captainkirk
Old School Mopar Warrior
Where do the Air Gap and Air Gap RPM play into this? (seeing as how I just bought an RPM)
Great thread, BTW!!!
Great thread, BTW!!!
---------------------------------------------------------------------------------------
What I know thru testing.
On a '273 Commando', the Holley {#300-7} Street Dominator put out
{+7 Horsepower} over the 'stock' Cast Iron Intake @ 4000 RPM's.
The 273 responded better with the 'Street Dominator' {over the 'stock' Cast Iron Intake} thru the Bottom-End.
On the 'Track', we gained an average of {-.12} lower Elapsed Times.
But, the MPH was 'identical'.
Holley 'Street Dominator' ... 300-7
The {701R-7} stamping is found on the underside of the Intake Manifold.
Carburetor-Flange designed for a Carter Thermoquad.
http://http://i.ebayimg.com/00/s/NzY4WDEwMjQ=/z/YsEAAOSwe-FU-omb/$_57.JPG
The {701R-7} stamping is found on the underside of the Intake Manifold.
Carburetor-Flange designed for a Carter Thermoquad.
http://http://i.ebayimg.com/00/s/NzY4WDEwMjQ=/z/YsEAAOSwe-FU-omb/$_57.JPG
Brockway Bill,
I have found that the Thermoquad from the '1978' 318 Truck Engine
#9123 {M/T}
#9124 {A/T}
Works best with the 'Holley' {300-7} 'Strip Dominator', especially on a 'Stock'
or 'Mild' 318 Engine.
Usually with no more than Headers {or a good tuned Exhaust System}.
And with a 'Hydraulic' Camshaft with a Lift of .445" and Advertised Duration of 260*.
Any Camshaft that was more 'radical' than the above specifications, was a wasted effort with the Holley 'Street Dominator'.
These Carter Thermoquads came thru with;
* Primary Jets .......... .092"
* Secondary Jets ...... .110"
Depending on who you talk to, these 1978 'Thermoquads' were rated
at anywhere between > {580 CFM's} to {650 CFM's.}
I have found that the Thermoquad from the '1978' 318 Truck Engine
#9123 {M/T}
#9124 {A/T}
Works best with the 'Holley' {300-7} 'Strip Dominator', especially on a 'Stock'
or 'Mild' 318 Engine.
Usually with no more than Headers {or a good tuned Exhaust System}.
And with a 'Hydraulic' Camshaft with a Lift of .445" and Advertised Duration of 260*.
Any Camshaft that was more 'radical' than the above specifications, was a wasted effort with the Holley 'Street Dominator'.
These Carter Thermoquads came thru with;
* Primary Jets .......... .092"
* Secondary Jets ...... .110"
Depending on who you talk to, these 1978 'Thermoquads' were rated
at anywhere between > {580 CFM's} to {650 CFM's.}
Rob H
Member
SOrry to revive and old (but interesting thread). The LD340 was released in 1969 (correct?). When released was it the version with or without a Chrysler part number (I know there were two versions)?
No part Number on the intake
Rob H
Member
Thanks.
famous bob
mopar misfit
not having a 340, or small block for that matter, I didn`t read all the posts. I was hoping for a pic of judy lilly driving one of her superstockers in a mini dress . anyone remember that ?
fratzog lover
Well-Known Member
Just came across this thread by accident. Was just thinking of Paul yesterday. I miss the 'MatchRace" series that he did. RIP Big Guy.
spl440
Everybody's Fool
Like this?
Which has what to do with this thread?
Put it in the babe section where it belongs.
Put it in the babe section where it belongs.
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