1970 Cuda 340 clutch

What is the best clutch for a mild 340 street use only thanks for the help.

For your application I think you would like a Centerforce. Many here will agree but a few purists will insist on a Borg & Beck style.

What centerforce do you recomend

Mild 340 street use only will use a stock clutch set just fine. Why complicate things???

Rockauto is your friend in this case:
http://www.rockauto.com/en/catalog/plymouth,1970,barracuda,5.6l+340cid+v8,1496494,transmission-manual,clutch+kit,1993

Generally speaking, the diaphragm clutches have lower pedal effort than the Borg & Beck.

Here's why you don't need anything more than a stock type clutch: factory engineers were very good at matching clutches, transmissions, etc., to the engine in front of them. If you have hopped up your 340 mildly or even majorly, without a power adder the engine's torque will not increase over stock or at most, add 10%, which is well within the safety margin designed into your stock clutch. What increases the power is moving the torque peak higher in the rpm range. But it doesn't matter what horsepower your engine makes! What the clutch sees is TORQUE. So unless you use nitrous or supercharger/turbocharger the torque stays close to the same, meaning the stock clutch is adequate. The farther you go from originality, the greater the chance of reducing driveability.

BUT if you really have to spend $500, then either the Centerforce II or Dual Friction is a very nice setup which will last forever in your application.

R.

I will point out that years ago I bought a "stock" clutch from AutoZone & I couldn't hit the gas pedal more than about 1/3 of the way down, even while already moving, without slipping the clutch.... HORRIBLE. So don't go "ultra cheap" in my opinion and at least get a decent one.

Also, I had some bad luck recently with a Hays street/strip clutch, but I was pretty hard on it to be honest. It just didn't seem like the same quality Hays used to sell.

I used a Luk clutch and pressure plate from Rock Auto for my stock 72 340 Duster a few years ago and I'm very happy with it. You have to remove the overcenter spring and the pedal effort is low and engagement is very smooth. Luk clutches have a good reputation with the Diesel truck crowd.

I bought a B&B stock replacement clutch for my 69 340 Dart last summer from Rockauto and I had problems with it right out of the box. The pressure plate was set to low when assembled. The pressure plate fingers ended up hitting the damper springs in the clutch disc when the clutch pedal was pushed to the floor. It made one hell of a grinding noise.
I had to pull the whole assembly back out and return it for a refund.
I ended up buying B&B Ram "Street" Clutch #88766 from Summit Racing which worked out fine for me.
The catalog picture on Summit's web site shows a diaphragm pressure plate, but it is actually a B&B pressure plate.

I had the exact same problem with that clutch in my ‘69 340 Swinger several years back.

I have a McLeod in mine with no problems. It came from Passon’s.

I've used the Center Force in my 360 Challenger for years. Drag strip with slicks (12.50), thousands of street miles. Never slips. Never shudders. Good pedal pressure (over center spring removed, wife's car). Resonably priced. Hands down the best clutch I've used in over 40 years of hot rods.
Doug

I have been running a McLeod for many years in the RR..
Originally tried a CenterForce, didn't like it pulled it out and chucked it in the dumpster...

Just my $0.02...

Mcleod 10.95 3 roller...ceramic faced disc= awesome. I tear 'em up and these things last. Rebuildable at McLeod also. 671 HP 670 TQ and no dual disc...