Sam1647545489 Posted April 14, 2011 Report Share Posted April 14, 2011 The springs on a set of heads are good to .475 lift. The cam exhaust is .477 with 1.5 rockers. The heads are from a roller cam. The new cam is a flat tappet. Rockers will be stock 350 vortec rockers. Will the springs hold? Quote Link to comment Share on other sites More sharing options...
rl Posted April 14, 2011 Report Share Posted April 14, 2011 The springs on a set of heads are good to .475 lift. The cam exhaust is .477 with 1.5 rockers. The heads are from a roller cam. The new cam is a flat tappet. Rockers will be stock 350 vortec rockers. Will the springs hold? Get the springs the cam calls for. Quote Link to comment Share on other sites More sharing options...
Patterson Posted April 14, 2011 Report Share Posted April 14, 2011 What's the part number on the spring? If installed pressure at installed height is 95-115lbs, and 230ish open (full lift) you'll be fine, but check retainer-stud boss clearance to make sure there is sufficient clearance with the valve seal installed. You may want to go to a long slot rocker. Small block rockers can run into a bind situation up around .480 range as well. Quote Link to comment Share on other sites More sharing options...
Rhett Posted April 14, 2011 Report Share Posted April 14, 2011 (edited) Shut Up Faggot Sam = Faggot Edited April 15, 2011 by Rhett Quote Link to comment Share on other sites More sharing options...
Farkas Posted April 14, 2011 Report Share Posted April 14, 2011 I wouldn't risk running those springs. Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted April 15, 2011 Report Share Posted April 15, 2011 those roller springs probably have enough seat pressure to wipe a flat tappet cam Quote Link to comment Share on other sites More sharing options...
neonkiller Posted April 15, 2011 Report Share Posted April 15, 2011 Kaboooom, or tatatatatatatatp Quote Link to comment Share on other sites More sharing options...
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