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gonabite · 05-11-2013, 11:12 AM

Off my 2010 ZR1, I had these heads ported and replaced valve springs that are good for .660 lift they are a private labeled spring exclusively for Redline Motorsports, pushrods are comp cams. These heads flowed enough to make 785 RWHP in my car. Porting was done by PRD in Miami and install was done by Redline Motorpsorts in Pompano Beach.

I took them off my car to replace them with a set of Mast heads.

Asking 1750 plus shipping.

05-11-2013, 11:12 AM	#1
gonabite Drives: 2016 CTS V Join Date: Feb 2012 Location: The Drag Strip Posts: 76	PORTED ZR1 LS9 HEADS Off my 2010 ZR1, I had these heads ported and replaced valve springs that are good for .660 lift they are a private labeled spring exclusively for Redline Motorsports, pushrods are comp cams. These heads flowed enough to make 785 RWHP in my car. Porting was done by PRD in Miami and install was done by Redline Motorpsorts in Pompano Beach. I took them off my car to replace them with a set of Mast heads. Asking 1750 plus shipping.