quote:Originally posted by DW:
JFFR,
What mufflers/ pipes are you using? I know the 4V headers will bolt up to the heads ok, but my concern is that if I buy a complete ceramic coated system and then it ends up needing to be heated and tweaked to line up and clear everything properly.
Thanks, Dennis
I am using the PI Big Tubes which were an original Mind Train design and twin glass packs, which are also the old Mind Train design. The headers are ceramic coated and I also installed the exhaust cross over pipe, which is just in front of the rear frame brace. The cross over seemed to pick up the mid range on the engine and it made it sound much better.
I believe the pipes after the headers are 3" dia., but everything does fit the car. What was nice about the 2V CHI aluminum heads is that the headers and exhaust system fit exactly up the same way that the cast iron 4V heads did.
I can't comment on the 3V CHI head for power and header fitment, but the 2V CHI aluminum heads make some much more power than my old system did, it feels like the engine is much bigger than a 351 cubic inches. With my cam, I can turn the engine to 6500 rpm and it is still making power at that rpm.