Announcement

**SappySE107** · 02-21-2008, 08:48 PM

8mm stems, 1.42" exhaust 1.76" intake.

**G-U-NOT** · 02-23-2008, 05:45 PM

What are they on a 3400 and a 3.1 mpfi?

**SappySE107** · 02-23-2008, 05:59 PM

8mm stem, 1.76 intake and 1.42 exhaust for 3400 and 2000+ 3100
8mm stem, 1.72 intake and 1.42 exhaust for 2.8 and 3.1 and 3100 up to 99

**G-U-NOT** · 02-24-2008, 10:42 PM

Since the 3400 and 3500 both have the same valve sizes, is 1 better than the other or 1 flow better than the other 1??

**ForcedFirebird** · 02-24-2008, 10:44 PM

Originally posted by G-U-NOT View Post

Since the 3400 and 3500 both have the same valve sizes, is 1 better than the other or 1 flow better than the other 1??

3500

**merlot566jka** · 02-27-2008, 12:26 AM

arent the 3500's lighter as well?

**ForcedFirebird** · 02-27-2008, 12:31 AM

Originally posted by merlot566jka View Post

arent the 3500's lighter as well?

I haven't weighed them, but I'm sure if Ben says they are, he did

3500 Valve Diameter