To check clearence I replaced the valve springs for one cylinder with small springs that were tight enough to hold the valve up, but loose enough to be compressed with my fingers. With the light springs on the valves, adjust the rocker to around zero lash (use your finger to push up on the spring retainer to add tension for adjustment) and then turn the engine through its rotation. You can push down on each valve as it is opening and closing and feel how far it moves before it hits the piston. This process is not exact, but will give you a good idea. I have Trick Flow heads w/2.02,1.60 cam:477/510 219/233@.050 and dishtop pistons. I think that the valves would be very close (or too close) with flat top pistons.
------------------
67 Fastback - Arctic White Pearl paint
351W 415 hp, Trick Flow Alum. Heads, C-4 Trans, 3.55 gears, Front Disc Brakes, 1-1/8" Fr. 3/4" rear sway bars.
|