CLASS RACER FORUM - View Single Post - Mopar 400-4

GTX JOHN · 12-16-2018, 04:47 AM

We have been running 400 in the Green Roadrunner for 7 or 8 years.
Steve has been running the 400 in the White Roadrunner he bought
from us for nearly as long.

They are a good combo.

The 440 in the same car.....Not so much!

Neither Combo has very much compression to
work with which is a challenge!

We run 400/260/294 With Thermoquad
I believe 400/175290 is a 2 Brl Engine=I would not
try that.

12-16-2018, 04:47 AM	#9
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,736 Likes: 2,808 Liked 2,487 Times in 698 Posts	Re: Mopar 400-4 We have been running 400 in the Green Roadrunner for 7 or 8 years. Steve has been running the 400 in the White Roadrunner he bought from us for nearly as long. They are a good combo. The 440 in the same car.....Not so much! Neither Combo has very much compression to work with which is a challenge! We run 400/260/294 With Thermoquad I believe 400/175290 is a 2 Brl Engine=I would not try that. __________________ John Irving 741 Stock 741 Super Stock Last edited by GTX JOHN; 12-16-2018 at 11:01 PM.