SBF 20° head preference

Post by **SpeierRacingHeads** » Mon Jul 01, 2019 4:41 pm

The Pro-Filer head is the same core boxes as the Z304. Pro-Filer cast them. We took that head and did our own thing. Darin designed the chamber before he went back to RM. The intake is a hand port I put into that casting and then was put into the core boxes.

It flows well, makes good power, just hasn't caught on.

Post by **SpeierRacingHeads** » Mon Jul 01, 2019 4:47 pm

4.03 fixture. Pro-Filer next to a TF high port.

paulzig · Post by **paulzig** » Mon Jul 01, 2019 11:57 pm

What size is that Profiler head? Is it a 205cc?

Post by **SpeierRacingHeads** » Tue Jul 02, 2019 10:42 am

paulzig wrote: ↑Mon Jul 01, 2019 11:57 pm What size is that Profiler head? Is it a 205cc?

Yes

bigfoot · Post by **bigfoot** » Sun Feb 09, 2020 5:45 pm

Does anyone have cast iron Trick Flow 170 cc heads for sale ?? They made them in early 90 s

Don Terrill’s Speed-Talk

SBF 20° head preference

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