69 383 Ply Roadrunner Top Speed?

Percy J. Ellington Von Wellinton IIII · 2004-09-06T05:25:02+00:00

Whats the top speed of a 69 383 rr auto with 3:23 rear end?

Sep 06, 2004 23 Replies

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Hemi4268 22 years ago

So your facts are verifiable! Well give the manual and page number to any facts you might spout.

Larry

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nospam.clare.nce 22 years ago

One thing you forget. A 440 has a larger bore than a 383, meaning less iron in the block (marginal, but there is a difference) It also has a longer stroke 0 meaning a difference in the crankshaft - likely heavier on the 440 - whick may more than make up for the difference. Then again, I think the 440 rods are shorter than the 383 rods - which would make them lighter.

At any rate, there is more difference between a 383 and a 440 than just an aluminum manifold and water pump, and more diffewrence between a Runner and a GTX than just the engine.

Actual factory shipping weights for440 gtx, 383 runner, 318 sport satellite, and 318 satelite (all hardtop coupe bodies) are 3465,

3450,3156, and 3151 lbs respectively.

The GTX had heavier battery, heavier suspension, heavier duty tansmission, and different interior (not sure if the seats were heavier or lighter, but generally vinyl is heavier than cloth)

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mic canic 22 years ago

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ThaDriver 22 years ago

long- the cars weren't designed for continuous high-speed operation and something would fail rather quickly, likely with fatal results.

******** OK I'm putting my 2 cents in here: :-) First, I'm inclined to believe the "near 140" estimate. I had a '71 340 RR with the same rear, but straight shift & it would do the 140 with the air grabber up (only 135 with it down). The RR 340 was the "Cyote Duster" engine with 340ci, 340 HP, & 340 ft.lbs.torque - not sure what the specs were on the 383. Also, I could run my bird as long as I wanted to at WOT, & never had *anything* fail. The *only* problem I ever had with the car was a broken alt. bracket. I will also add that the GTX *was* heaver than the RR: it had a lot of extra "luxuries" as well as sound deadner, etc. The RR was a striped down machine. ~ Paul aka "Tha Driver"

Giggle Cream - it makes dessert *funny*!

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