RacerHog

My Buddy Dale Reed.....


OR

PICK YOUR POSSION !!!!!

Mr.4spd

So hard to choose...oh I guess I'll take one of each.

TVLynn

That notice was for the race Hemi. They made what 50 Hemi Darts ?

The 5.7 ????? Bad assembly ? valves hit pistons and caused the chain to break

Coronet 500

A longtimer told me the lower RPM torque of the Wedge would win to half track, at that point the Hemi would start coming and they might meat at the end of a quarter.

Get them out on a longer road than a 1/4 mile track and the Hemi would pull away no problem.

440roadrunner

I think you are confusing the older "HP" figures with "net" HP which are completely different. One thing that IS solid, and that is older....and developing....drag strip times.

Mr.4spd

If we could dig up old drag strip test results we could calculate HP from that. All we need is trap speed and weight, right?

moe7404

" hemi Cuda. Those were incredibly docile creatures." really? the hemi cuda WAS and IS, THE fastest NHRA legal super stock car. hardly docile. i watched them, in person, running when new 1968. off the trailer ran 10.80 or better. when i saw them i did NOT think they was docile. in Tulas 1968 worlda points finals i watched a guy with a 1968 Z-28 with 2-4 barrels. whin and cry cause he had to race the hemi cuda. the NHRA inspector said "if your car company CANT build a fast car dont cry to me" BO=HO.

Drag Pak

My limited knowledge of the early run 5.7's was that the valve seats came loose in the heads hanging the valves open and smashing pistons.

RacerHog

Newer 5.7 Hemi's do have problems with dropping valve seats...
The Valve seat pocket was not cut deep enough into the head for the seat to get a good hold of the head for a solid retainment of the seat in the heat duty cycle.... The hole seat comes loose, gets cocked in the pocket/port, wedges the valve open. And the rest is a done deal.....

The aftermarket rebuilders have the fix for them now days.... And for what it's worth... Jasper Engines did a great job in the beginning looking at these for the fix...

Sorry for the side step..... Shoot me later....

RacerHog

Dont forget the 426 Max Wedge had 4 stages
Stock
Stage I
Stage II
Stage III

The Hemi was Miled Mannered to say the least.... At least in the beginning.

Here is Food for thought..... Who is who and who is running what....

demetri

I have heard of the empirical equation, but that would be a very rough calculations. There are just too many other parameters, such as gear ratio, traction, etc etc.

I forgot another factor against the GM (and possibly Ford) big blocks, very bad con rod to stroke ratio. They were building engines as cheap as they could get away with.

I am talking about net horsepower, which is real horsepower. The gross horsepower advertised was generally fictitious (or paper) horsepower, invented by the marketing departments in order to sell cars. The honest gross horsepower was rarely properly quoted by the late sixties (gross hp should be 10%, may be 15% higher than the net). Chrysler was not awfully honest either (although better than most). The basic 413 was quoted at 340 hp, and the basic 440 350 hp. The reality was that the 440 had a lot more juice than just 10 hp ...

On the pictures of that 426 max wedge. That was a very neat ram manifold. I thin they had some ram manifolds in the hemis, but later in their production. I think this style (wedge) manifold is now available for the 440's from Mopar performance, but its not cheap. This is in my "wish list"!

moe7404

one ram manifold for the race hemi had one single carb. it sat down in a bowl. a holley. i think it was called the le-mans i think. why? nascar had a single carb limit at that time. there was in the day many pics of it in car mags.

Street Wedge Polara

Good morning. I'm considering purchasing a 1964 Polara 500 that has the original 4speed and the originial 426 Street Wedge Engine. The current owner has the original build sheet and Fender tag. Said a few years ago, he had the engine rebuilt and put front disc's on it. Although the body has almost no rust, it will need repainted and the interior will need redone. It's a Black on Black car. I'm trying to get a good idea of what a car like this would be worth. I would consider it either a #3 or #4 out of 5 condition. These are somewhat forgotten Mopars so I don't have a good feel for the value. Thanks in advance for any help. Russell

Iowan

please start your own thread with your questions, this thread has been dead for 9 years...