Pushrod Clearance 1.6RR Vortec Heads
06-16-2009, 09:12 PM
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Car: 87 Pontiac Formula
Engine: 5.7L Crate Engine
Transmission: 5spd NWC
Pushrod Clearance 1.6RR Vortec Heads
I am in the process of converting my 350 TPI to ramjet intake and vortec heads. I installed a ZZ4 cam and modified "ZZ5" vortec heads with 1.6 RR Comp Cams Pro Mag Rockers. The push rods are 10241740 new GM Performance.
Per the pictures, I have very slight clearance. Do I need to elongate the holes, or is this enough?
Per the pictures, I have very slight clearance. Do I need to elongate the holes, or is this enough?
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