Stock W/2 heads flow 240 cfm intake and 148 cfm exhaust. With our “UnderCover” Porting the intake side will flow 262 cfm and the exhaust will improve to 178 cfm.
| Part # | Description | Price |
| UC-W2 | "UnderCover Porting" to your bare W2 heads. Labor only. | $895.00 |
![]() - Click here to sign up for the Brzezinski Email Newsletter - New! Combination SBC and LS1 Slider. We combined the bolt pattern on these 2 popular sliders to give you 2 Sliders for the price of one. - New "Look-A-LIke" retainers for the '604 Crate Motor. - New Crate Motor “Look-A-Like” Replacement Valve Springs ![]() |