D/Dart in Stock

Paul Ceasrine · 10-11-2009, 03:55 AM

W J,
Now thats a rare car. Nice little engine too

Paint code #922 Ember Red. (Body shop/paint days

)
Paul

Paul Ceasrine · 10-12-2009, 03:34 AM

dat4forte,

The carburetor for the D-Dart was a Holley #4160 (List #3778)
Which means it had metering-plates only.
A single-feed with the short transfer tube, between the front and back float bowls.
It was a vacuum-only for the secondaries.
The butterly openings were 1 11/16" (Primary and Secondary).
Here's the confusion, what was the CFM-rating.
It was 700 CFM.
Holley serial #'s _776 = 600 CFM
_777 = 650 CFM
_778 = 700 CFM (D DART)
_779 = 750 CFM
_780 = 800 CFM

* The D DART carburetor was equipped with a manual choke only.
PC

dart4forte · 10-12-2009, 07:40 PM

Quote:

Originally Posted by Paul Ceasrine

dat4forte,

The carburetor for the D-Dart was a Holley #4160 (List #3778)
Which means it had metering-plates only.
A single-feed with the short transfer tube, between the front and back float bowls.
It was a vacuum-only for the secondaries.
The butterly openings were 1 11/16" (Primary and Secondary).
Here's the confusion, what was the CFM-rating.
It was 700 CFM.
Holley serial #'s _776 = 600 CFM
_777 = 650 CFM
_778 = 700 CFM (D DART)
_779 = 750 CFM
_780 = 800 CFM

* The D DART carburetor was equipped with a manual choke only.
PC

So what you are saying is the last three numbers in the list number is the CFM rating? Also, I thought the spacer between the carb and the manifold was to allow full openings of the butterflys. If that's true then why did they need to bore out the manifold? I wonder how that motor would of responded to an Edelbrock D4B?

Paul Ceasrine · 10-13-2009, 01:13 AM

Yes,
The Holley List #'s for the #3775, #3776, etc. coincide with the higher
CFM ratings.
I mis-stated earlier that the D-Dart Holley carb was a 600-CFM rated unit. I was incorrect, as I didn't check my old data sheet.
It was a Holley 4160, with a 700 CFM rating.
Again, more mystery surrounding the D-Dart information.
Also, the carburetor wasn't just a bolt-on, from out-of-the box. It was tweaked at the factory ("Chrysler Performance Factory-Prepped").
Just what did that mean? (Next posting)
PC

dart4forte · 10-13-2009, 08:27 PM

Quote:

Originally Posted by Paul Ceasrine

Yes,
The Holley List #'s for the #3775, #3776, etc. coincide with the higher
CFM ratings.
I mis-stated earlier that the D-Dart Holley carb was a 600-CFM rated unit. I was incorrect, as I didn't check my old data sheet.
It was a Holley 4160, with a 700 CFM rating.
Again, more mystery surrounding the D-Dart information.
Also, the carburetor wasn't just a bolt-on, from out-of-the box. It was tweaked at the factory ("Chrysler Performance Factory-Prepped").
Just what did that mean? (Next posting)
PC

Maybe tweeked by teams/driver that had sucess with their 273 combos

Paul Ceasrine · 10-13-2009, 11:57 PM

On the Edelbrock, aluminum dual-plane high-rise intake.
Now that MANIFOLD should have been part of the standard unit for the
D-Dart. Worked well in mid-range 3800 - 5800 RPM.
A nice way to bolt-on an additional 15HP.
Not too bad of price either ($100 back in 1971). Worked very well with
our 67' 273/235 Cuda convertible/automatic car (SS/NA in 72'/73').
Only draw-back, the Carter #4295A (500 CFM) was a little under-sized.
PC

Paul Ceasrine · 10-16-2009, 03:09 PM

To Akan Hvizdos (ddartdude),
Regarding Post #12.
Nothing on Ted Spehar/Ralph Costa.
But one thing perplexes me? What was Jon Rasbach doing in
H/SA in 1970. Now I think Lapeer Dragway didn't open until 1968.
To be classified in H/S (11.00 -11.49 wt/hp) that weight factor was
used by NHRA in 69'/70'/71' (3 straight years)
I'm wondering if the NHRA didn't re-rate the HP for the D-Dart to
265HP at that time, giving it an 11.11 stock class factor.
I remember back then, that the NHRA re-rated the 340/275HP to
290HP.
Now I don't think Lapeer was an AHRA sanctioned track. But
Detroit Dragway, where Ted Spehar ran was AHRA-sanctioned.
PC

dart4forte · 10-16-2009, 07:52 PM

Quote:

Originally Posted by Paul Ceasrine

dat4forte,

The carburetor for the D-Dart was a Holley #4160 (List #3778)
Which means it had metering-plates only.
A single-feed with the short transfer tube, between the front and back float bowls.
It was a vacuum-only for the secondaries.
The butterly openings were 1 11/16" (Primary and Secondary).
Here's the confusion, what was the CFM-rating.
It was 700 CFM.
Holley serial #'s _776 = 600 CFM
_777 = 650 CFM
_778 = 700 CFM (D DART)
_779 = 750 CFM
_780 = 800 CFM

* The D DART carburetor was equipped with a manual choke only.
PC

Okay, food for thought. 1969 Chevy 427 and 1969 Chevy Z-28 with the 302 both had 4150 Holley carbs rated from the factory at 780 CFM. Example, the 427 carbs had a listing of #4346 for the COPOs and #4396 for the ZL1. So how does that fit with what you state above?

Paul Ceasrine · 10-17-2009, 03:37 PM

It doesn't.
What I was stating is that on Model 4160 carbs, with a List #3776
thru #3800, the CFM ratings start at 600 CFM, and ascend up to
800 CFM.
As for other Holley carbs, the List #'s are over the place.
Nothing symetrical.
For instance, the Holley 4160 carb for the 68' Race Hemi has a
List #4235 (Right side, 770 CFM carb)
List #4236 (Left side, 770 CFM carb)

I will not answer a Chevy question

PC

dart4forte · 10-17-2009, 04:45 PM

Quote:

Originally Posted by Paul Ceasrine

It doesn't.
What I was stating is that on Model 4160 carbs, with a List #3776
thru #3800, the CFM ratings start at 600 CFM, and ascend up to
800 CFM.
As for other Holley carbs, the List #'s are over the place.
Nothing symetrical.
For instance, the Holley 4160 carb for the 68' Race Hemi has a
List #4235 (Right side, 770 CFM carb)
List #4236 (Left side, 770 CFM carb)

I will not answer a Chevy question

PC

I thought I'd slip that chivy question in

10-12-2009, 03:34 AM	#2
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: D/Dart in Stock dat4forte, The carburetor for the D-Dart was a Holley #4160 (List #3778) Which means it had metering-plates only. A single-feed with the short transfer tube, between the front and back float bowls. It was a vacuum-only for the secondaries. The butterly openings were 1 11/16" (Primary and Secondary). Here's the confusion, what was the CFM-rating. It was 700 CFM. Holley serial #'s _776 = 600 CFM _777 = 650 CFM _778 = 700 CFM (D DART) _779 = 750 CFM _780 = 800 CFM * The D DART carburetor was equipped with a manual choke only. PC

10-13-2009, 11:57 PM	#6
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: D/Dart in Stock On the Edelbrock, aluminum dual-plane high-rise intake. Now that MANIFOLD should have been part of the standard unit for the D-Dart. Worked well in mid-range 3800 - 5800 RPM. A nice way to bolt-on an additional 15HP. Not too bad of price either ($100 back in 1971). Worked very well with our 67' 273/235 Cuda convertible/automatic car (SS/NA in 72'/73'). Only draw-back, the Carter #4295A (500 CFM) was a little under-sized. PC Last edited by Paul Ceasrine; 10-15-2009 at 01:58 AM.

10-16-2009, 03:09 PM	#7
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: D/Dart in Stock To Akan Hvizdos (ddartdude), Regarding Post #12. Nothing on Ted Spehar/Ralph Costa. But one thing perplexes me? What was Jon Rasbach doing in H/SA in 1970. Now I think Lapeer Dragway didn't open until 1968. To be classified in H/S (11.00 -11.49 wt/hp) that weight factor was used by NHRA in 69'/70'/71' (3 straight years) I'm wondering if the NHRA didn't re-rate the HP for the D-Dart to 265HP at that time, giving it an 11.11 stock class factor. I remember back then, that the NHRA re-rated the 340/275HP to 290HP. Now I don't think Lapeer was an AHRA sanctioned track. But Detroit Dragway, where Ted Spehar ran was AHRA-sanctioned. PC

10-11-2009, 03:55 AM	#1
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: D/Dart in Stock W J, Now thats a rare car. Nice little engine too Paint code #922 Ember Red. (Body shop/paint days) Paul

10-13-2009, 01:13 AM	#4
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: D/Dart in Stock Yes, The Holley List #'s for the #3775, #3776, etc. coincide with the higher CFM ratings. I mis-stated earlier that the D-Dart Holley carb was a 600-CFM rated unit. I was incorrect, as I didn't check my old data sheet. It was a Holley 4160, with a 700 CFM rating. Again, more mystery surrounding the D-Dart information. Also, the carburetor wasn't just a bolt-on, from out-of-the box. It was tweaked at the factory ("Chrysler Performance Factory-Prepped"). Just what did that mean? (Next posting) PC

10-17-2009, 03:37 PM	#9
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: D/Dart in Stock It doesn't. What I was stating is that on Model 4160 carbs, with a List #3776 thru #3800, the CFM ratings start at 600 CFM, and ascend up to 800 CFM. As for other Holley carbs, the List #'s are over the place. Nothing symetrical. For instance, the Holley 4160 carb for the 68' Race Hemi has a List #4235 (Right side, 770 CFM carb) List #4236 (Left side, 770 CFM carb) I will not answer a Chevy question PC Last edited by Paul Ceasrine; 10-17-2009 at 03:48 PM.