dane1586

The engine is a stock bottom end 5.3 with 212/218 highlift cam, headsmilled .030, 5 angle valve job, stock valves unshrouded, using stock head gasket. I found zero lash between 7.225 and 7.25. Took 7.25 and added 0.090 for preload and came up with 7.34 closest rods I found was 7.35. I checked my work by dropping in the checker at 7.35, tightend the rocker down till I had no more endplay and then counted the number of revolutions till the rocker bottomed out on the seat (1.25 rev). Does this sound ok?

JakeFusion

iTrader: (7)

Torque to 22ft-lbs and count the turns. Every full turn is approx .047" of preload. So if you got to 22ft-lbs when you bottomed out, you're probably close to to .060" of preload...

maxpower_454

iTrader: (7)

Shouldn't he have .100" of preload from the measurements?

vettenuts

iTrader: (4)

His measurements are close to 0.100" and the number of turns (1.25) to bottom and not 22 lb-ft comes out to 0.101 per my calculations so I would personally go a bit shorter. 7.325" might be a better choice.

JakeFusion

iTrader: (7)

Measurements are .100 but I don't know what bottoming out is? How much ft-lbs that is on the bolt.

dane1586

maybe 5 ft-lbs..

PREDATOR-Z

As per OP measurements I second that choice (7.325)

dane1586

Thanks guys, 7.325 worked out great!