doug thorley header question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ozman3803 · 07-04-2009, 12:47 AM

Here is the part #THY-372Y-C I've been looking at. It's a tri-Y header with ceramic coating. Any thoughts on this. Says it's a idle to 4500 rpm range, do they have a longpipe version of these for mid to high rpm? Anybody running this header, if so how's the performance? By the way this will be on a 70 C-10 350 with manual trans.

johnechi · 07-04-2009, 04:56 AM

The tri-ys are perfect for the application you are running. Even with a stock to decent cam, you will have good bottom end torque. Why do you want midrange to hi-rpm power band? Unless you are going to be racing in that upper RPM band. The full-length headers do offer better upper RPM torque, but at a loss of torque from 1200-4500 rpms.

07-04-2009, 12:47 AM	#1
ozman3803 Registered User Join Date: Jun 2009 Location: Lincoln, NE Posts: 125	doug thorley header question Here is the part #THY-372Y-C I've been looking at. It's a tri-Y header with ceramic coating. Any thoughts on this. Says it's a idle to 4500 rpm range, do they have a longpipe version of these for mid to high rpm? Anybody running this header, if so how's the performance? By the way this will be on a 70 C-10 350 with manual trans. Last edited by ozman3803; 07-04-2009 at 12:47 AM.

07-04-2009, 04:56 AM	#2
johnechi Registered User Join Date: Jun 2009 Location: Hesperia, CA Posts: 159	Re: doug thorley header question The tri-ys are perfect for the application you are running. Even with a stock to decent cam, you will have good bottom end torque. Why do you want midrange to hi-rpm power band? Unless you are going to be racing in that upper RPM band. The full-length headers do offer better upper RPM torque, but at a loss of torque from 1200-4500 rpms.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.