Don Terrill’s Speed-Talk

When building a 23* drag race SBC with 4.155 bore and 3.80 stroke is the Brodix Track 1 X and a good choice? Expect to produce about 700 horse with an operating range of 6400 - 7800 RPM

If you are thinking out of the box== AFR is a much better choice



JOE SHERMAN RACING

Joe, not necessarily out of the box, although that would be OK.

The goal is a SBC, 23* head that will run 6.0 ET 1/8 mile at 3100 pounds with driver. Doing so will require about 408 CI, 700 horse with an operating range of 6400 - 7800 RPM [all the above appromiximate] [most likely with methanol]

Given that, which AFR head will accomplish that goal?

The AFR 220 competition CNC ported will work very well on that size engine




JOE SHERMAN RACING

For making 700 hp on meth I would like to see 320 cfm @ .650" lift out of the Heads used and the track 1X do not hit those numbers out if the box.

Dragsinger wrote:When building a 23* drag race SBC with 4.155 bore and 3.80 stroke is the Brodix Track 1 X and a good choice? Expect to produce about 700 horse with an operating range of 6400 - 7800 RPM

If you want to use a Brodix head then I would opt for the 18X heads; 18 degree but, with 23 degree exhaust pattern and uses 23 degree stud type rocker parts.