1970coupe

hey guys i am in a delima. i canget shortys formy 2v with an adapter but they are 4v headers. will i lose alot alot of torque? and WILL IT SOUND GOOD? is there a diffrence in the longtube sound?
Thanks!

btw i have a 351c for a 1970 coupe so if you can find me some that fit a fmx trans 2v that would be great!!!!!

1970coupe

http://www.sandersonheaders.com/prod...roducts_id=188

i can use this 4v shorty with a 2v coper adapter they sell. will i be losing a tremendous amount of torque with a1 7/8 header vs a 1 5/8 header?

JamesW

I'm going to have to plead ignorant.... what makes a header a 2v and another a 4v?

1970coupe

its a header made for a 4v (same bolt as a 2v just bigger ports) but it needs a copper adapter from the port to the header to fit right to a bigger opening. but by doing so your making 2/8 of an inch bigger tubing than what most header companys run for a 2v. the hedmans are 1 5/8 and these sandersons im looking at will work, ive called, but im afraid of losing alot of torque with a bigger 1 7/8header.

do yall think its thank big of a diffrence? you have to consider the percentage but its not a long tube its a shorty and it goes into a 2 1/4 exhaust.

please help me out!
thanks guys!

JamesW

Gotcha..I forgot about Clevelands having different heads for 2 barrel and 4 barrel motors.

I can't imagine that tube size making any noticeable difference for a street car.

Bentworker

Those are what I'm using.

Check out the dyno run if you want a rough idea of sound. I'm using the 4V headers bolted up to my CHI 2V heads.




http://smg.photobucket.com/albums/v9...t=DSCN0789.flv

1970coupe

yeah i cant either but people said that it might so im not sure. and my other question is do you think itll sound the same as long tubes? ive spent about 600 in exhaust so i dont want it to sound like it does with just turbos. im hoping itll sound alot diffrent. i ordered some flowmaster super 44s.

1970coupe

hey it sounds pretty good bent. but thats open headers right. what exhaust are you running? does it have that nice header deep hollow tone to it?

Bentworker

The engine is still out of the car, so I have no idea what it will sound like with a full exhaust. The engine had flex tube hooked up to the collectors and run out of the building during the dyno pull.

Peter

1970coupe

what was the torque and hp on the dyno? what all has been done to the motor just curious