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**Oreo** · 09-13-2007, 01:30 PM

It is true that there seems to be much more on this subject regarding 2 valve heads. However, I did find one picture on his site of a typical pent-prizm, 4 valve design similar to our duratecs, with grooves applied.

Actually cutting the grooves sounds easy for anyone with the cahones to try it. He explains exactly where & how to place them.

I can also say that, similar to the pictures I posted above of the un-modified chamber's carbon deposit patern, I saw a similar carbon deposit patern in the D23 engine I tore down.

09-13-2007, 01:30 PM	#5 (permalink)
Oreo DoubleStuf™ Join Date: Jan 2005 Location: GlockPost.com Posts: 4,049	Re: Somender Singh grooves- on a duratec? It is true that there seems to be much more on this subject regarding 2 valve heads. However, I did find one picture on his site of a typical pent-prizm, 4 valve design similar to our duratecs, with grooves applied. Actually cutting the grooves sounds easy for anyone with the cahones to try it. He explains exactly where & how to place them. I can also say that, similar to the pictures I posted above of the un-modified chamber's carbon deposit patern, I saw a similar carbon deposit patern in the D23 engine I tore down. __________________ I'M BACK FROM THE DEAD!!........................................... Getting installed right friggin now as fast as I can crack the whip at the builder's ass:T2 ATB, 4.06 fdr, Cosworth IM, Stg 2 Crane cams, Eagle ConRods, 12.5:1cr 88mm Supertech pistons, Fidanza FW, Luk ProGold clutch, CFM Adj. cam gears Installed: SVT Brakes, ST200 Rims, Koni Sports, -2" Apex springs, poly FLCA & dog-bone bushings, Progress 22mm RSB, TriAx/F STS, Cosworth CAI, Draxas & Trubendz exhaust, XCal2- Now with more ProRacer! Last edited by Oreo; 09-14-2007 at 02:40 PM.