Author Topic: BOSS 429 vs. 426 Hemi  (Read 2735 times)

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Offline Stonewall

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BOSS 429 vs. 426 Hemi
« on: December 18, 2005, 08:47:09 am »
I've driven the hemi in a '69 Roadrunner, with dual quads & 4 speed.  The owner showed me the window sticker -- a $725 (approx.) option.  Driving that car (alone, for about an hour) was a memorable experience!!  That was back in '73-'74, and the car had less than 20,000 miles.

Has anyone here driven both?  I mean, REALLY driven... not a cruise, but romp!  A BOSS 429 and a 426 Hemi anything??  If so, how would you compare the two.  THanks!


1, sold.                     2, sold.                    3, totalled 10/17/08.   4, owned for 1 week.  5, current & loving it!

Offline nadine

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boss 429 vs. 426 hemi
« Reply #1 on: December 18, 2005, 04:20:59 pm »
I've driven a 70 hemi cuda and a 70 boss 429 and boss had a fresh engine that i built,balanced and blueprinted but  still all stock,dynoed at 402 hp..both cars had a very strong pull..i think the boss 9 felt a little stronger on the top end.. With a little tweeking Boss 9 cars run alot better than most people think...kenny..

Offline bossrules

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429 vs 426
« Reply #2 on: December 18, 2005, 10:00:44 pm »
I used to own a 69 hemi 426 GTX with factory 4 speed in 1985 (one of the greatest regrets of my life ever selling,)  I have not driven a 429 boss ever, so I can't even begin to speculate the difference between the two.
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Offline icecreamman

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boss 429 vs. 426 hemi
« Reply #3 on: December 19, 2005, 12:23:32 am »
On the showdown they had the boss429 beat the hemi.

did you see the show?

Offline Hemi4speed

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boss 429 vs. 426 hemi
« Reply #4 on: December 19, 2005, 03:29:14 am »
I usually don't post on this board but this is definitely a subject I might be able to shed some light on. I currently own and drive (somewhat aggresively) three Hemicars. 69 B9 Mustang, solid cam T-motor. 69 SuperBee 426H 4spd. 70 Cuda 426H auto. All are stock, low milage cars and ride on repop biasbelted tires. I think the B9 is the fastest of the three but I give the edge to the Mustang largely due to it's being the lightest weight. All the cars have to be softballed off the line or they light the tires up hard. The 426H has more torque and better reponse down low and the broader powerband. The B9 is softer down low and really comes alive about 3500 and pulls harder than the 426 up top. Both motors nose over at about the same RPM but I think if the B9 had more carburetion, like the 426, it would RPM higher than the Mopar. Of course, both motors are undercammed for the airflow capacity of their respective cylinder heads and this limits the top end. So IMHO, the B9 Mustang is faster than a 426H B or E-body, but the Mopar Hemi has better street manners and overall is the more driveable motor. If both motors were in equal weight cars, it's a toss-up. Hope this helps.

Offline Stonewall

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boss 429 vs. 426 hemi
« Reply #5 on: December 19, 2005, 08:26:09 am »
HUGE help.  New respect for the B9 in my book!!!!!!!!


1, sold.                     2, sold.                    3, totalled 10/17/08.   4, owned for 1 week.  5, current & loving it!

Offline boss9

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boss 429 vs. 426 hemi
« Reply #6 on: December 20, 2005, 08:42:05 pm »
Great post!
Im a die hard ford fan for sure but luv those chryslers all the same.
I remember a photo from an old HotRod mag many years ago.
It pictured a quote sign written on the back of a 426 hemi car...Charger i think

"Yep it maybe ugly...but its the fastest car here"

Both are legends without equal. Luv to see a combined hemi get together
Cheers Craig & Denise
1970 Mustang BOSS 429 Grabber Blue/White
1967 Mustang She Country Convertible (Limelight Green Met)
2008 FPV BFII Falcon Ute Super Pursuit BOSS 302 (Silver/Orange) - ex Ford
2014 Box full of bills

Offline bossrules

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boss 429 vs. 426 hemi
« Reply #7 on: December 20, 2005, 08:42:22 pm »
Quote
HUGE help.  New respect for the B9 in my book!!!!!!!!


I totally agree!  My 69 GTX was a rust bucket, but still a screamer on the street.  I had big dreams and a little wallet back then.  I seam to still have those big dreams and the wallet is fuller, but not big enough to do a car like that!
2 Chevy C-30 W/9 foot step side bed.

Offline gt40tt

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boss 429 vs. 426 hemi
« Reply #8 on: December 21, 2005, 05:47:17 am »
While I never got to drive a Chrysler Hemi car,I did ride in my friends  68 Hemi GTX on several occasions in 1968 and 1969.He also rode in my Boss 429,I thought the GTX was a great ride,very powerful,but,he would never race me !As noted previously,the Boss seemed to have much more on the top end and even with the hemi's dual quads I think he would have had trouble beating me.I just wish I had put dual quads on back then because the way they make my car run now is incredible.