Mopar Engines ~ "Combinations That Should Have Been Made Available"

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Eddie J,

I like the way you think................

Plymouth 1968_______________________________________________________________________________________
Valiant............ 318/255 HP {10.5-1-Pistons ~ .461"/266* 'Mech.' Camshaft ~ Aluminum Intake ~ 600 CFM Holley}
* NHRA Class = G/S and G/SA

Barracuda........ 340/275 HP
* NHRA re-factored to 310 HP = E/S and E/SA

Barracuda........ 340/300 HP {11.0-1 Pistons ~ .485"/280* 'Mech.' Camshaft ~ Aluminum Intake ~ 750 CFM Carter AVS}
* NHRA re-factored to 325 HP ~ NHRA Class = D/S and D/SA ~ SS/F and SS/FA

Barracuda........ 426/425 'Race Hemi' ~ Lightweight
* NHRA Class = SS/B and SS/BA

Road Runner..... 383/335 HP
* NHRA re-factored to 300 HP ~ NHRA Class = G/S and G/SA

Road Runner..... 383/340 HP {11.0-1 Pistons ~ .484"/284* 'Hyd.' Camshaft ~ Aluminum Intake ~ 780 CFM Holley}
* NHRA Class = E/S and E/SA

Road Runner..... 426/425 HP 'Street Hemi'
* NHRA Class = AA/S and AA/SA ~ SS/D and SS/DA

Road Runner..... 426/425 HP 'Race Hemi' ~ Lightweight
* NHRA Class = SS/C and SS/CA

GTX................ 440/375 HP
* NHRA Class = D/S and D/SA ~ SS/F and SS/FA

GTX................ 440/390 HP {11.0-1 Pistons ~ .490"/296* 'Mech.' Camshaft ~ Aluminum Intake ~ 800 CFM Holley}
* NHRA Class = C/S and C/SA ~ SS/E and SS/EA

GTX................ 426/425 HP 'Street Hemi'
* NHRA Class = A/S and A/SA ~ SS/D and SS/DA
 
What were the specs for the south American performance 318 and /6?
 
1968 Dodge/1968 NHRA Class

* Dart GT............. 318/255 HP {10.5-1 Pistons ~ .461"/266* 'Mechanical' Camshaft ~ Aluminum Intake ~ 600 CFM Holley} * NHRA Class = H/S and H/SA

* Dart GTS........... 340/275 HP
* NHRA re-factored to 310 HP ~ NHRA Class E/S and E/SA

* Dart GTS........... 383/300 HP
* NHRA Class = F/S and F/SA

* Dart GTS........... 383/340 HP {11.0-1 Pistons ~ .484"/284* 'Hydraulic' Camshaft ~ Aluminum Intake ~ 780 CFM Holley}
* NHRA Class = D/S and D/SA ~ SS/F and SS/FA

* Dart GTS........... 440/375 HP 'Automatic Only'
* NHRA Class = B/SA or SS/EA

* Dart GT............. 426/425 HP 'Race Hemi' ~ Lightweight
* NHRA Class = SS/B and SS/BA

* Super Bee.......... 383/335 HP
* NHRA re-factored to 300 HP ~ G/S and G/SA

* Super Bee.......... 383/340 HP {11.0-1 Pistons ~ ..484"/284* 'Hydraulic' Camshaft ~ Aluminum Intake ~ 780 CFM Holley}
* NHRA Class = E/S and E/SA

Super Bee.......... 426/425 HP 'Street Hemi'
* NHRA Class = AA/S and AA/SA ~ SS/D and SS/DA

* Super Bee.......... 426/425 HP 'Race Hemi' ~ Lightweight
* NHRA Class = SS/C and SS/CA

* Coroner R/T....... 440/375 HP
* NHRA Class = D/S and D/SA ~ SS/F and SS/FA

* Coronet R/T....... 440/390 HP {11.0-1 Pistons ~ .490"/296* 'Mechanical' Camshaft ~ Aluminum Intake ~ 800 CFM Holley
* NHRA Class = C/S and C/SA or SS/E and SS/EA

* Coronet R/T....... 426/425 HP 'Street Hemi'
* NHRA Class = A/S and A/SA or SS/D and SS/DA

* Charger............. 383/330 HP
* NHRA re-factored to 300 HP ~ NHRA Class = I/S and I/SA

* Charger R/T....... 440/375 HP
* NHRA Class = E/S and E/SA

* Charger R/T....... 440/400 HP {11.0-1 Pistons ~ 509"/300* 'Mechanical' Camshaft ~ Aluminum Intake ~ Six-Pack Carburetor}
* NHRA Class = C/S and C/SA ~ SS/E and SS/EA

Charger R/T....... 426/425 HP 'Street Hemi'
* NHRA Class = A/S and A/SA ~ SS/D and SS/DA
 
Should've made darts up to 72 in convertables and bigblks...and bigblks 383-440 with optional hemi heads,just think what a 340 could've done with hemi heads and crossrams,factory cast tubetype headers[max-wedge style]...and dusters with hemis and bblk factory set-ups..a 70 dart wing car with the hemi or 440 max wedge,or a 340 6 pak....or take the orig version of the /6 turn it into a v-12[orig v-12 german tank engine] with dual quads more comp bigger solid cam talk about a torque monster...
 
1969

Barracuda and Dart GTS

Offered a 440 with;
* Aluminum Max-Wedge Cylinder Heads.
* 11.0-1 Pistons
* .520" Lift Camshaft
* Fresh-Air Induction
* Aluminum Dual Plane High Rise
* 850 CFM Holley
* 4-Speed or Automatic
* Gears {3.91 thru 4.56}
 
They also should've made ALL their small blocks run the '68~'71 Hi-perf exhaust manifolds!

Another thing is......why the heck didn't the factory ever consider running a 4-inch stroker crank on the small blocks, a la Chevy small block 400?? Seems like it would be bad *** and so cheap to do. Maybe didn't want to overload the cooling system.....?
 
I would have liked to have seen some more head/cam/compression/carb combinations for the different engines. For example, the Mopar 440 came in only two forms: the standard 375hp version or the 390hp 440-6 version and that was it. Some Mopar engines were even more limited and came in only one single version.

This is in contrast to what other manufacturers like Chevy had. The Chevy 396 for example - I don't know how many versions of the engine there were, but the engine ranged from the 350hp L34 all the way up to the 425hp L78 - a 75hp spread.

In retrospect I think Mopar could have done the same with their engines. The engines were tough and durable and responded well to "hot-rodding" without losing their reliability. I don't know why they didn't offer more combinations. Cost I assume was the prime factor. I just would have preferred to have seen more engine combinations available then "high-impact" colors and decal and sticker "packages". Can you imagine if they had offered a couple of different cam combinations for the Hemi? 425hp base engine and then a 450hp? or 475hp? etc
 
How 'bout a super-limited-edition-for-the-street, 1968 completely "Max-Wedged" 440 Dart with those crazy exhaust manifolds, except exiting out a small hole in each fenderwell!

MWEM.jpg
 
A aluminum 383 in the 375 HP area offered in 69-71 Darts and Dusters would have been a lethal combo.
 
1970 Duster

* 340/350 HP
* 11.0-1 Pistons
* 'Mechanical' Camshaft = .510" Lift ~ 308* Duration
* Edelbrock Six-Barrel Intake w/3 x 2 Holley's.
* Twin Hood Scoop Fresh-Air Intake
 
69 Cuda 440 said:
1970 Duster

* 340/350 HP
* 11.0-1 Pistons
* 'Mechanical' Camshaft = .510" Lift ~ 308* Duration
* Edelbrock Six-Barrel Intake w/3 x 2 Holley's.
* Twin Hood Scoop Fresh-Air Intake
Click to expand...

Now your killing me Paul...lol. My favorite "A" body with a dream build from the factory.....Oh man. :D
 
a duster "twister" with factory frame connectors (so it wouldn't twist lol) dana 60 rear 451c.i. based on 400block/440 crank ss springs wide rally wheels all from the factory
 
With all this conversing about what should've been has got me to thinking about a whole different build for the 440 for the dart...In reality 'we' the Mopar peoples are just carring out almost every combo or 'what should've been' optional offerings for our said cars the way we would've ordered them but with aftermarket pieces for the most part,so in essence we are building what the factory didnt and carrying on the tradition with alot of twists and different flavors to suit our need for speed....now about that factory sponsering program...well good luck on that one...
 
OldmanRick said:
Now your killing me Paul...lol. My favorite "A" body with a dream build from the factory.....Oh man. :D
Click to expand...


O-M-R,

For the 1970 Duster ~ 340 '350 HP' 'Six-Barrel'

Add in the 1970 340 T/A Cylinder Heads with 'factory' enlarged Intake Ports to {175 CC}
and 2.05" Intake Valves.

#3150 lbs. ~ 350 Horsepower = A perfect '9.00' Wt/Hp

1970 = E/S and E/SA or SS/G and SS/GA

OOH Baby !!..........The damage that the Duster would do.....:burnout:
 
cudavert said:
How 'bout a super-limited-edition-for-the-street, 1968 completely "Max-Wedged" 440 Dart with those crazy exhaust manifolds, except exiting out a small hole in each fenderwell!

MWEM.jpg
Click to expand...
That's what I'm talking about....
 
The '440'

Most would agree that the 440 was over-rated by Mopar at 375 Horsepower.

NHRA re-factored the 440/375 HP to it's proper rating of '356 HP'.

That being said,

Other 440 combinations should have been offered;

375 HP
11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Aluminum Intake ~ 800 CFM Holley

400 HP
11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Aluminum Six-Barrel Intake ~ 3 x 2 Holley's

420 HP
* 11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Max-Wedge Cylinder Heads ~ Cross-Ram Intake ~ 'Twin' 625 CFM Carter's
 
69 Cuda 440 said:
The '440'

Most would agree that the 440 was over-rated by Mopar at 375 Horsepower.

NHRA re-factored the 440/375 HP to it's proper rating of '356 HP'.

That being said,

Other 440 combinations should have been offered;

375 HP
11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Aluminum Intake ~ 800 CFM Holley

400 HP
11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Aluminum Six-Barrel Intake ~ 3 x 2 Holley's

420 HP
* 11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Max-Wedge Cylinder Heads ~ Cross-Ram Intake ~ 'Twin' 625 CFM Carter's
Click to expand...

... and this is what I'm talking about! I like your thinking!

Oh the possibilities of what could have been something really extraordinary :burnout:
 
69 Cuda 440 said:
The '440'

Most would agree that the 440 was over-rated by Mopar at 375 Horsepower.

NHRA re-factored the 440/375 HP to it's proper rating of '356 HP'.

That being said,

Other 440 combinations should have been offered;

375 HP
11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Aluminum Intake ~ 800 CFM Holley

400 HP
11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Aluminum Six-Barrel Intake ~ 3 x 2 Holley's

420 HP
* 11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Max-Wedge Cylinder Heads ~ Cross-Ram Intake ~ 'Twin' 625 CFM Carter's
Click to expand...

Really? You think they were over rated @375? They were factored back then at the flywheel.
 
SGBARRACUDA said:
Really? You think they were over rated @375? They were factored back then at the flywheel.
Click to expand...

Yes, I know........

But the 440 was 'rated too high' by the Factory at 375 HP.

* 10.0-1 = Flat-Top Pistons
* Hydraulic Camshaft....... .450"/.458" Lift ~ 268*/284* Duration ~ 44* Overlap
* #915 or #906 Cylinder Heads {2.08" Intake ~ 1.74" Exhaust}
* Cast Iron Intake 'Dual-Plane' ~ Low-to-Medium Rise Intake
* Carter 750 CFM Carburetor

That's closer to 356 HP, don't you think.........

Compare that to the Chevy 396/375 HP {L-89 Combination} or the Pontiac 400/370 HP 'Ram Air IV'
 
Consensus

Mopar should have built both a 340 'Six-Barrel' and a 440 'Six-Barrel' for the 1970 Duster, and a 'Race Hemi'.

The 1970 Cuda and Challenger should have been made available with
'3' versions of the 383, and {no 340's for the heavy E-Body}, '5' versions of
the 440, a Street Hemi and a 'Race Hemi'.

* 383/335 HP {Properly Re-factored to 300 HP}
* 383/320 HP {10.0-1 Pistons ~ .484"/284* 'Hydraulic' Camshaft ~ Aluminum Intake}
* 383/340 HP {11.0-1 Pistons ~ .484"/284* 'Hydraulic' Camshaft ~ Aluminum Intake ~ 780 CFM Holley}

* 440/375 HP {Properly Re-factored to 356 HP}
* 440/375 HP {11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Aluminum Intake ~ 800 CFM Holley}
* 440/390 HP {10.0-1 Pistons ~ 'Hydraulic' Camshaft ~ 'Six-Barrel'}
* 440/400 HP {11.0-1 Pistons ~ 'Mechanical' Camshaft ~ 'Six-Barrel'}
* 440/420 HP {11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Max-Wedge Heads ~ Cross-Ram Intake ~ Twin Carter's}
 
I always think,of Dan Dvorak fighting the NHRA official's S/S Max Wedge refactors,lol....
 
69 Cuda 440 said:
Consensus

Mopar should have built both a 340 'Six-Barrel' and a 440 'Six-Barrel' for the 1970 Duster, and a 'Race Hemi'.

The 1970 Cuda and Challenger should have been made available with
'3' versions of the 383, and {no 340's for the heavy E-Body}, '5' versions of
the 440, a Street Hemi and a 'Race Hemi'.

* 383/335 HP {Properly Re-factored to 300 HP}
* 383/320 HP {10.0-1 Pistons ~ .484"/284* 'Hydraulic' Camshaft ~ Aluminum Intake}
* 383/340 HP {11.0-1 Pistons ~ .484"/284* 'Hydraulic' Camshaft ~ Aluminum Intake ~ 780 CFM Holley}

* 440/375 HP {Properly Re-factored to 356 HP}
* 440/375 HP {11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Aluminum Intake ~ 800 CFM Holley}
* 440/390 HP {10.0-1 Pistons ~ 'Hydraulic' Camshaft ~ 'Six-Barrel'}
* 440/400 HP {11.0-1 Pistons ~ 'Mechanical' Camshaft ~ 'Six-Barrel'}
* 440/420 HP {11.0-1 Pistons ~ 'Mechanical' Camshaft ~ Max-Wedge Heads ~ Cross-Ram Intake ~ Twin Carter's}
Click to expand...

Just a note: there is a big difference in the way 70-74 Cuda's and Challengers drive with 340's vs. any of the big blocks. I have driven all except a hemi car and would take a spirited 340 over the other 2 powerplants anyday. tmm
 
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